Transcript
For advanced drive technology
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
R
POLY-NORM® Torsionally Flexible Shaft Couplings
Catalog Contents
Page
Coupling Description
54
Coupling Selection
55
Technical Data
56
Standard Shaft Coupling AR
57
3-Part Style ADR
58
Drop-out Center Style AZR
59
53
POLY-NORM
®
Torsionally flexible couplings Coupling description
For advanced drive technology
General description The POLY-NORM® coupling is a torsionally flexible, shear type shaft coupling with an axial plug-in design and short over all length. The POLY-NORM® can be used in all types of machinery and is ideal for the pump industry. The POLY-NORM® couplings compensate for shaft misalignment of all kinds and safely transmit torque.
Function/Design The coupling consists of two hubs, with jaws separated by elastomeric elements. The hubs are assembled by axially plugging the jaws into each other trapping the elastomer ring in a groove between both coupling hubs. The compact POLY-NORM® coupling transmits torque with the elastomer in compression. Shaft misalignments, vibrations and shock loads are effectively absorbed by the POLY-NORM®. The coupling is maintenance-free and works well in general machinery, pumps and compressors. Torques of up to 11,000 Nm (97,350 lb in) are stocked in 14 different sizes and 7 designs. In addition to the standard coupling models, flange drop out center and spacer options are available.
Explosion-proof POLY-NORM® Couplings are for use in hazardous environments. The coupling is approved according to the EC Standard 94/9/EC (ATEX 95) (appliance category 2 and 3) and can be used in drives of this hazard class. (Go to www.ktrcorp.com to review the Certificate of Compliance and operation and assembly instructions).
Variety of Options The coupling adapters to many applications with it’s building block arrangement. POLY-NORM® components can be mixed and matched with each other to obtain different shaft distances using the same basic component. Upon request, KTR can provide customized variations of the POLY-NORM® to fit your needs.
54
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
R
Torsionally flexible couplings Coupling selection
For advanced drive technology R
The POLY-NORM® coupling must be sized such that the coupling rated nominal torque is not exceeded in any operating condition. A comparison must be made between the application torque vs. the rating of the coupling. The selection process for torsionally flexible shaft couplings is described in detail in the ROTEX® cataloge which can be used for POLY-NORM® couplings as well. Temperature factor St –86 °F +86 °F St
1.0
Starting factor SZ
+104 °F +140 °F +176 °F 1.2
1.4
Shock factor SA / SL
Starting frequency/h
100
200
400
800
SZ
1.0
1.2
1.4
1.6
1.8
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
POLY-NORM
®
mild shocks medium shocks heavy shocks
SA /SL 1.5 1.8 2.5
Example of calculation – Coupling selection according to DIN 740 Pump drive with three-phase motor Driver power data: Power Speed Mass moment of inertia
Performance data of pump: Nominal torque Peak torque 1) Mass moment of inertia
P = 100 HP n = 1480 RPM JA = 9.38 lbinsec2
General data: Ambient temperature t = +140 °F Starting frequency z = 6 1/h Normal operation with mild shocks
TLN = 3540 lb in TLS = 2655 lb in JL = 20.36 lbinsec2
1) Peak value with shock load thus St = 1.4 thus SZ = 1.0 thus SA or SL = 1.5
Calculation engine torque TAN : P TAN [lb in] = 63025 · ––– n
Calculation engine peak torque TAS : TAS [lb in] = 2 · TAN TAS [lb in] = 2 · 4258 lb in = 8516 lb in
100 HP TAN [lb in] = 63025 · –––––––––– = 4258 lb in 1480 RPM
Factor 2: Peak value with drive-side shock load, e. g. as in full voltage motor starting
Calculation nominal torque of coupling TKN : TKN [lb in] > TAN · St TKN [lb in] > 4258 lb in · 1.4 = 5961 lb in Selected coupling: POLY-NORM AR Size 75 Transmittable torques of the coupling:
Nominal torque Maximum torque
TKN = 7523 lb in (≥ 6001 lb in) TK max = 15045 lb in
Checking of the maximum torque TK max / drive side: Calculation mass factor of the drive side MA: JL MA = ––––––– JA + JL 20.36 lbinsec2 MA = .––––––––––––––––– = 0.68 9.38 lbinsec2 + 20.36 lbinsec2 Calculation of the peak torque of the unit – drive-side TSA : TSA [lb in] = TAS · MA · SA TSA [lb in] = 8516 lb in · 0.68 · 1.5 = 8686 lb in Calculation of the maximum permissible torque TK max: TK max [lb in] > TSA · SZ · St + TLN · St TK max [lb in] = 8686 lb in · 1.0 · 1.4 + 0 lb in · 1.4 = 12160 lb in TK max of selected coupling > TK max of the drive side (mathematically) 15047 lb in > 12160 lb in TLN = 0: when motor is switched on the pump has no load torque
Checking of the maximum torque TK max / driven-side: Calculation of mass factor of the driven side ML : JA ML = ––––––– JL + JA 9.38 lbinsec2 ML = . ––––––––––––––––––– = 0.32 20.36 lbinsec2 + 9.38 lbinsec2 Calculation of peak torque of the unit – load side TSL : TSL [lb in] = TLS · ML · SL TSL [lb in] = 2655 lb in · 0.32 · 1.5 = 1274 lb in Calculation of the maximum permissible torque TK max: TK max [lb in] > TSL · SZ · St + TLN · St TK max [lb in] = 1275 lb in · 1.0 · 1.4 + 3540 lb in · 1.4 = 6741 lb in TK max of selected coupling > TK max of the drive side (mathematically) 15047 lb in > 6741 lb in
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
55
Torsionally flexible couplings Technical data
POLY-NORM
®
Torque [lb in]
POLY-NORM® Sizes for all types
Nominal TKN
28 32 38 42 48 55 60 65 75 85 90 100 110 125
354 531 797 1328 1947 2655 3629 4868 7523 11949 17702 25668 34519 48681
TKmax.
Alternating TKW
Max. speed [RPM] at V = 98 ft/s
Max. bore [in]
708 1062 1593 2655 3894 5311 7258 9736 15047 23898 35404 51336 69038 97361
142 212 319 531 779 1062 1452 1947 3009 4780 7081 10267 13808 19472
8300 7300 6500 5900 5400 4800 4400 4100 3600 3150 2900 2600 2300 2050
1.125 1.250 1.500 1.688 1.875 2.156 2.344 2.500 2.938 3.250 3.500 3.938 4.313 4.875
Max.
For advanced drive technology R
Max. permissible misalignment [in] 1) Axial
∆Ka
±0.04 ±0.04 ±0.04 ±0.04 ±0.06 ±0.06 ±0.06 ±0.06 ±0.06 ±0.06 ±0.06 ±0.12 ±0.12 ±0.12
Radial
∆Kr
Angular
0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02
∆Kw
1.2 1.4 1.5 1.7 1.8 2.0 2.2 2.4 2.7 3.0 3.4 3.9 4.3 4.8
1) Misalignment at n = 1500 RPM. Angular and radial misalignment can occur at the same time. The sum of all misalignments must not exceed the figures set forth in the table. Couplings may be dynamically balanced on request
Axial misalignment ∆Ka
Radial misalignment ∆Kr
Angular misalignment ∆Kw 1° [degree] [degree] 1°
Misalignment
Lmax./ min = L + ∆Ka [in]
∆Kw = Smax. – Smin. [in]
Assembly Guidelines During assembly, the coupling halves must be mounted in a way that the coupling hub faces are flush to the end of the shafts. The alignment of the shafts must be adjusted that radial and the angular misalignments are minimal. The life of the coupling and bearings is extended by precise alignment. Steps must be taken to ensure that the alignment will not change during all operating conditions. Shaft misalignments which cannot be avoided must not exceed the figures indicated in the table. Angular and radial misalignments can occur at the same time but the sum of these misalignments must not exceed the figures set forth in the table above. See the KTR mounting instructions, KTR standard 49510 at our homepage www.ktrcorp.com.
General information about the elastomer Material Hardness Permanent temperature range [ºF] Max. temperature (short time) [ºF] Applications
Resistant to
Perbunan 75 Shore A - 86 to + 176 - 122 to + 248 - all applications of all machinery and hydraulics - standard couplings applications
Elastomer ring (Standard)
Gasoline, diesel Acids, bases Tropics (Salt-) Water (hot/cold) Oils, greases Propane, butane Natural gas, city gas Single elastomer packages (special)
56
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
Torsionally flexible couplings Standard shaft coupling Style AR
For advanced drive technology R
• • • • •
Torsionally flexible, reduces vibrations Failsafe Maintenance-free Compact design Approved according to EC Standard 94/9/EC (Explosion Certificate ATEX 95) • Inch bore sizes machined to AGMA 9002-A86 class 1 fit Inch key sizes machined to ANSI B17.1 • Metric bore sizes machined to ISO H7 fit Metric key sizes machined to DIN 6885 JS9 • See installation instructions at www.ktrcorp.com Components
1
2
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
POLY-NORM
®
1
Components: Style AR 1 = Standard hub 2 = Elastomer ring
Drawing style AR cross section
(EN-GJL-250) (NBR 78 ShA)
POLY-NORM® AR Grey cast iron ( EN-GJL-250) Elastomer ring (part 2) 1) Size
Torque [lb in]
Mass moment of inertia 3)
Dimensions [in] Finish bore
General
Thread for setscrew2)
AR 3) Weight
Ø dmax 1.125
[lbinsec2 ]
[lb]
1.81
dH 1.44
t
0.12
DH 2.72
G
2.32
l1 1.10
N
354
TK max. 708
LAR
28
0.47
M5
0.28
0.00354
1.98
32
531
1062
1.250
2.68
1.26
0.16
3.07
2.09
1.63
0.55
M8
0.28
0.00708
3.09
38
797
1593
1.500
3.15
1.50
0.16
3.43
2.44
1.97
0.77
M8
0.39
0.01416
4.41
42
1328
2655
1.688
3.46
1.65
0.16
3.78
2.72
2.19
0.79
M8
0.39
0.02301
5.95
48
1947
3894
1.875
3.98
1.89
0.20
4.17
3.07
2.52
0.94
M8
0.59
0.03717
8.16
55
2655
5311
2.156
4.53
2.17
0.20
4.65
3.54
2.87
1.14
M8
0.55
0.06196
12.13
TKN
s
D
60
3629
7258
2.344
4.92
2.36
0.20
5.08
3.82
3.19
1.30
M8
0.59
0.09913
15.21
65
4868
9736
2.500
5.31
2.56
0.20
5.51
4.13
3.39
1.42
M10
0.79
0.15401
19.40
75
7523
15047
2.938
6.10
2.95
0.20
6.22
4.84
3.94
1.67
M10
0.79
0.24783
29.77
85
11949
23898
3.250
6.89
3.35
0.20
7.17
5.47
4.57
1.91
M10
0.98
0.46025
43.00
90
17702
35404
3.500
7.28
3.54
0.20
7.87
5.83
5.04
1.93
M12
0.98
0.79659
51.16
100
25668
51336
3.938
8.11
3.94
0.24
8.82
6.50
5.63
2.17
M12
0.98
1.41616
70.34
110
34519
69038
4.313
8.90
4.33
0.24
9.84
7.28
6.22
2.36
M16
1.18
2.80577
83.79
125
48681
97361
4.875
10.08
4.92
0.24
11.02
8.27
7.01
2.76
M16
1.38
5.04507
121.72
1) Standard material Perbunan (NBR) 78 Shore-A 3) Calculated with nominal bore
Components
TB1
TB2
POLY-NORM® with taper clamping sleeve Coupling style POLYNORM® Size
32 48
TB 1 Jaw-sided screwing TB 2 Collar-sided screwing
Taper bushing
Combination possible! set screws *2 for taper sleeves
Dimensions [in] d1; d2 max.
l1; l2
s
L
D
DH
N
Size *1 [in]
Length [in]
Quantity
TA [lb in]
1108
1.000
1.00
0.16
2.17
2.09
3.07
0.30
1/4"
1/2"
3
50
1610
1.563
1.18
0.20
2.56
3.07
4.17
0.24
3/8"
5/8"
5
177
1615
1.563
1.67
0.20
3.54
3.07
4.17
0.73
3/8"
5/8"
5
177
60
2012
2.000
1.52
0.20
3.15
3.82
5.08
0.41
7/16"
7/8"
6
274
75
2517
2.344
2.07
0.20
4.33
4.84
6.22
0.79
1/2"
1"
6
434
85
2517
2.344
1.83
0.20
3.86
5.47
7.17
0.39
1/2"
1"
6
434
90
3020
2.750
2.05
0.20
4.29
5.83
7.87
0.43
5/8"
1-1/4"
8
814
100
3535
3.500
3.86
0.24
7.95
6.50
8.82
2.09
1/2"
1-1/2"
10
1018
*1 BSW thread *2 2 fixing screws each except for taper clamping sleeve 3535: 3 set screws • Please ask for our separate data sheet M407045
Order form:
POLY-NORM® 38
AR
Ø 38
Ø 30
Coupling size
Style
Finish bore A
Finish bore B
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
57
Torsionally flexible couplings
POLY-NORM
®
For advanced drive technology
3-Part Style ADR
R
• • • • • •
Torsionally flexible, reduces vibrations Elastomer can be changed while assembled Failsafe Maintenance-free Short design Approved according to EC Standard 94/9/EC (Explosion Certificate ATEX 95) • Inch bore sizes machined to AGMA 9002-A86 class 1 fit Inch key sizes machined to ANSI B17.1 • Metric bore sizes machined to ISO H7 fit Metric key sizes machined to DIN 6885 JS9 • See installation instructions at www.ktrcorp.com
Components
1
2
4D
3D
Components: = displacement of hub
Style ADR (3-part) 1 = Standard hub 2 = Elastomer ring 3D = Flange hub 4D = Jaw ring
Style ADR (3-part)
(EN-GJL-250) (NBR 78 ShA) (EN-GJS-400-15) (EN-GJL-250)
POLY-NORM® ADR Size
Elastomer ring Torque [lb in] 1) TKN
38 42 48 55 60 65 75 85 90 100 110 125
797 1328 1947 2655 3629 4868 7523 11949 17702 25668 34519 48681
Dimensions [in] General
Finish bore
TKmax. d1 max. d2 max. LADR
1593 2655 3894 5311 7258 9736 15047 23898 35404 51336 69038 97361
1.125 1.375 1.688 1.875 2.156 2.344 2.500 2.938 3.250 3.500 3.938 4.313
1.500 1.688 1.875 2.156 2.313 2.500 2.938 3.250 3.500 3.938 4.313 4.875
3.15 3.46 3.98 4.53 4.92 5.31 6.10 6.89 7.28 8.11 8.90 10.08
Thread for setscrew
l1;l2
s
DH
D
D1
dH
N
M
W
G
t
t1
TA [lb in]
1.50 1.65 1.89 2.17 2.36 2.56 2.95 3.35 3.54 3.94 4.33 4.92
0.16 0.16 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.24 0.24 0.24
3.43 3.78 4.17 4.65 5.08 5.51 6.22 7.17 7.87 8.82 9.84 11.02
2.44 2.72 3.07 3.54 3.82 4.13 4.84 5.47 5.83 6.50 7.28 8.27
1.89 2.13 2.44 2.83 3.15 3.39 3.86 4.41 4.80 5.35 5.91 6.61
1.97 2.19 2.52 2.87 3.19 3.39 3.94 4.57 5.04 5.63 6.22 7.01
0.77 0.79 0.94 1.14 1.30 1.42 1.67 1.91 1.93 2.17 2.36 2.76
0.43 0.47 0.54 0.74 0.87 1.05 1.09 1.33 1.24 1.48 1.56 1.89
0.47 0.63 0.63 0.59 0.55 0.43 0.63 0.71 1.02 1.10 1.18 1.38
M8 M8 M8 M8 M8 M10 M10 M10 M12 M12 M16 M16
0.39 0.39 0.59 0.55 0.59 0.79 0.79 0.98 0.98 0.98 1.18 1.38
0.28 0.28 0.28 0.55 0.59 0.79 0.79 0.98 0.98 0.98 1.18 1.38
89 89 89 89 89 150 150 150 354 354 708 708
1) Standard material Perbunan (NBR)
Classification of cap screws DIN EN ISO 4762–12.9 Size
Mxl [mm]
Quantity z
Separation z x angle
D4 [in]
38 42 48 55 60 65
M6x16 M8x16 M8x20 M8x20 M8x20 M10x20
5 5 6 6 6 6
5x72 5x72 6x60 6x60 6x60 6x60
2.44 2.72 3.07 3.46 3.86 4.09
Order form:
58
TA [lb in]
3)
88.51 221.275 221.275 221.275 221.275 433.699
POLY-NORM® 65
ADR
Coupling size
Style
Size
Mxl [mm]
Quantity z
Separation z x angle
D4 [in]
75 85 90 100 110 125
M10x25 M12x25 M16x30 M16x30 M16x40 M20x40
6 6 6 6 8 8
6x60 6x60 6x60 6x60 8x45 8x45
4.72 5.43 5.87 6.42 7.20 7.95
d1 - Ø55 Finish bore part 1
TA [lb in]
3)
433.699 761.186 1858.71 1858.71 1858.71 3628.91
d2 - Ø 60 Finish bore part 3D
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
Torsionally flexible couplings Drop-out Center Style Couplings Style AZR • • • • • • • •
Components 4N
3N
2
3N
For advanced drive technology R
Connects long shaft gaps with spacers Elastomer can be changed while assembled No movement of driver and driven components is necessary for disassembly of pump thrust bearing. Custom designs are available (AZVR) Approved according to EC Standard 94/9/EC (Explosion Certificate ATEX 95) Inch bore sizes machined to AGMA 9002-A86 class 1 fit Inch key sizes machined to ANSI B17.1 Metric bore sizes machined to ISO H7 fit Metric key sizes machined to DIN 6885 JS9 See installation instructions at www.ktrcorp.com
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
POLY-NORM
®
4N
Components: Style AZR 2 = Elastomer ring (NBR 78 ShA) 3N = Driving flange (EN-GJS-400-15) 4N = Coupling flange (S355J2G3)
Style AZR POLY-NORM® AZR Size
28 32 38 42 48 55
60
65
75
85
90
100
Drop out Elastomer ring (p.2) 1) center Torque [lb in] length TKN TKmax L [in]
3.94 5.51 3.94 5.51 3.94 5.51 3.94 5.51 3.94 5.51 3.94 5.51 7.09 3.94 5.51 7.09 3.94 5.51 7.09 5.51 7.09 9.84 5.51 7.09 9.84 5.51 7.09 9.84 5.51 7.09 9.84
Dimensions 2) [in] Finish bore Ø dmax
354
708
1.188
531
1062
1.375
797
1593
1.563
1328
2655
1.750
1947
3894
2.000
2655
5311
2.344
3629
7258
2.500
4868
9736
2.750
7523
15047
3.125
11949
23898
3.500
17702
35404
3.750
25668
51336
4.313
1) Standard material Perbunan (NBR) 78 Shore-A 2) For screw specification see POLY-NORM® AZR short 3) Calculated to mid bore
Order form:
Thread for setscrew 3)
General LAZR
6.69 8.27 6.69 8.27 7.24 8.82 7.48 9.06 8.03 9.61 8.27 9.84 11.42 8.66 10.24 11.81 9.06 10.63 12.20 11.42 12.99 15.75 12.20 13.78 16.54 12.60 14.17 16.93 13.39 14.96 17.72
l2
1.38 1.38 1.65 1.77 2.05 2.17
2.36
2.56
2.95
3.35
3.54
3.94
l3
1.95 2.74 1.93 2.72 1.93 2.72 1.93 2.72 1.93 2.72 1.93 2.72 3.50 1.93 2.72 3.50 1.93 2.72 3.50 2.72 3.50 4.88 2.72 3.50 4.88 2.72 3.50 4.88 2.72 3.50 4.88
s
l4
DH
DF
0.12
0.04
2.72
1.81
1.02
M
M5
G
0.28
t
0.16
0.04
3.07
2.09
1.02
M8
0.28
0.16
0.04
3.43
2.44
1.30
M8
0.39
0.16
0.04
3.78
2.72
1.38
M8
0.39
0.20
0.06
4.17
3.07
1.63
M8
0.59
0.20
0.06
4.65
3.46
1.71
M8
0.55
0.20
0.06
5.08
3.82
1.87
M8
0.59
0.20
0.06
5.51
4.13
2.03
M10
0.79
0.20
0.06
6.22
4.84
2.38
M10
0.79
0.20
0.06
7.17
5.47
2.74
M10
0.98
0.20
0.06
7.87
5.83
2.89
M12
0.98
0.24
0.08
8.82
6.50
3.27
M12
0.98
Mass AZR moment 3) of inertia 4) Weight [lbs] [lbinsec2]
0.01770 0.02655 0.03717 0.05488 0.04248 0.06019 0.08320 0.11329 0.15047 0.19118 0.16640 0.21242 0.25845 0.28854 0.36643 0.44609 0.49920 0.64612 0.79128 0.72932 0.89218 1.17895 1.38961 1.46750 1.60380 2.18266 2.54909 3.15627 3.52978 3.93870 4.83707
5.29 6.39 7.06 8.60 9.48 11.25 11.25 13.23 14.55 16.54 20.73 23.81 26.90 24.70 28.67 32.19 30.87 34.84 38.59 51.16 56.45 65.71 70.78 77.62 89.74 84.23 93.05 108.71 110.25 120.83 139.36
Further type: POLY-NORM® combined with RUFLEX® overload coupling. Please ask for our separate data sheet (M412784).
Still available: POLY-NORM® type AZVR for limited assembly space: Screw access from the shaft side
POLY-NORM® 42
AZR
140
Ø 38
Ø 42
Coupling size
Style
Drop out center length L
Finish bore A
Finish bore B
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
59
60
For advanced drive technology
POLY® Torsionally flexible shear couplings
Catalog Contents
Page
Coupling Description
62
PKZ & PKD Couplings
62
PKZ & PKD Alignment Guidelines
64
PKA Couplings
65
PKA Alignment Guidelines
66
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
R
61
Torsionally flexible couplings Coupling description
POLY
®
For advanced drive technology
General description: The POLY® coupling is a torsionally flexible, shear shaft coupling for general machinery. It is assembled by axially plugging the hubs into each other and has excellent dampening characteristics. Its unique features are the flexible elastomeric elements that are located in both coupling halves. The POLY® advantage – A much greater number of flexible elements create a larger effective mass of the elastomer to accept vibration and to dissipate the heat caused by torsional vibrations when compared to similar competitive couplings with elements only in one half.
Coupling selection The coupling selection must be done on the base POLY-NORM® or ROTEX®.
Function/Design The coupling consists of 2 hubs with jaws that are separated by elastomeric elements which are assembled by axial plug-in to each other. Elastomer elements are placed into the slots of both coupling hubs. Torque is transmitted in a compact design. Shaft misalignments, vibrations and shock loads are effectively absorbed by the POLY® coupling. The coupling is maintenance-free and used in general machinery, pumps and compressors. The Poly® coupling handles torque ranges of up to 63,000 Nm (46,500 lb ft) and is stocked in 21 different sizes and 4 designs for immediate availability. In addition to our standard coupling models, a variety of flange, drop out center and spacer options are available.
Explosion-proof POLY® Couplings are for use in hazardous environments. The coupling is approved according to the EC Standard 94/9/EC (ATEX 95) and thereby can be used in drives of this hazard class (appliance category 2 and 3). Click on ww.ktrcorp.com to read the Certificate of Compliance, along with the operation and assembly instructions.
Variation of components The coupling can be adapted to many applications due to the building block arrangement. The POLY® components of a given model can be mixed and matched with each other to obtain different shaft distances using the same basic component. Upon request, we can provide customized variations of the POLY® to fit your application.
62
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
R
Torsionally flexible couplings • • • • • • • • • 1
Components
For advanced drive technology
2-part design Style PKZ • 3-part design Style PKD
Torsionally flexible / maintenance-free Reduces vibration Shear design Short overall length / minimum distance between shafts In PKD the elastomer elements can be changed without moving components Approved according to EC Standard 94/9/EC (Explosion Certificate ATEX 95) Inch bore sizes machined to AGMA 9002-A86 class 1 fit Inch key sizes machined to ANSI B17.1 Metric bore sizes machined to ISO H7 fit Metric key sizes machined to DIN 6885 JS9 See installation instructions at www.ktrcorp.com
Nominal torque 1) TKN [lb in]
Max. speed 2) n [RPM]
8 (Z) 9 (Z) 10 (Z) 12 (Z) 14 (Z) 15 (Z;D) 17 (Z;D) 19 (Z;D) 20 (Z;D) 22 (Z;D) 25 (Z;D) 28 (Z;D) 30 (Z;D) 35 (D) 40 (D) 45 (D)
372 637 885 1505 1859 2832 3540 5842 7258 9736 14162 22128 34961 53991 79659 126569
5000 5000 5000 5000 4800 4300 3800 3500 3300 3000 2700 2350 2200 1850 1600 1400
3D
1
2Z
Style PKZ (Z) – (Size 8 to 30)
Size
Max. finish bore Ødmax. [in] part 1 part 2Z part 2D
R
2D
Style PKD (D) – (Size 15 to 40) Dimensions [in] DH
D
DZ
DD
l1; l 2
MZ
MD
N
E
LPKZ/PKD
Weight 3) [lbs]
3.75
0.750
1.125
–
3.39
1.69
1.97
–
1.38
0.98
–
0.12
0.12
2.87
1.125
1.500
–
3.82
2.17
2.56
–
1.61
1.18
–
0.28
0.12
3.35
5.95
1.250
1.688
–
4.21
2.36
2.76
–
1.81
1.38
–
0.39
0.16
3.78
7.72
1.438
1.875
–
5.16
2.76
3.15
–
2.17
1.69
–
0.47
0.16
4.49
11.91
1.625
2.156
–
5.59
3.15
3.66
–
2.36
1.81
–
0.67
0.16
4.88
16.76
2.000
2.313
1.750
6.18
3.54
3.94
2.95
2.56
2.05
1.38
0.87
0.16
5.28
18.96
2.344
2.500
2.000
6.93
3.94
4.33
3.54
2.76
2.20
1.57
0.98
0.16
5.67
26.46
2.938
2.938
2.500
7.68
4.92
4.92
4.21
2.95
2.52
1.77
1.18
0.16
6.06
39.69
2.500
2.938
2.313
8.07
4.53
5.00
4.13
3.15
2.56
1.77
0.91
0.16
6.46
44.10
3.250
3.250
2.938
8.82
5.51
5.51
5.08
3.54
2.95
2.32
1.54
0.16
7.24
55.13
10.12
5.91
5.91
5.51
3.94
3.31
2.36
1.73
0.20
8.07
77.18
3.500 90.000 3.250
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
POLY
®
3.938
3.938
3.750
11.34
6.50
6.50
6.30
4.33
3.54
2.56
1.77
0.20
8.86
116.87
4.313
4.313
3.938
12.13
7.09
7.09
6.69
5.12
4.25
2.95
2.30
0.20
10.43
145.53
4.875
–
4.875
14.69
8.27
–
8.27
6.30
–
3.74
2.72
0.20
12.80
275.63
5.688
–
5.688
16.65
9.45
–
9.45
7.09
–
4.53
3.35
0.20
14.37
396.90
6.250
-
6.250
10.63
-
10.63
7.09
-
4.33
2.91
0.24
14.41
485.10
18.62
1) Maximal torque TK max = TKN x 2; Standard material Perbunan (NBR) 92 Shore-A; Standard hub material: EN-GJL-250 2) For v = 98.4 ft/sec. For peripheral speeds exceeding v = 98.4 ft/sec. we recommend a dynamical balancing; hub material EN-GJS-400-15 3) Calculated to middle bore
Components: Style PKZ (Z) 1 = Jaw section 2Z = Pocket section *
Components: Style PKD (D) 1 = Jaw section * 2D = Flange hub 3D = Jaw ring
* To be preferably used drive-sided
* To be preferably used drive-sided
Order form:
POLY®
PKD
28
Ø 90
Ø 80
Coupling size
Style
Size
Finish bore part 1
Finish bore part 2
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
63
Torsionally flexible couplings
POLY
®
For advanced drive technology
Coupling Alignment · Setscrews · Elastomer
Axial displacement
Radial displacement
R
Angular displacement
Radial and angular misalignments can occur simultaneously. The combined sum V = ∆KR + (Emax. – Emin.) must not exceed the values listed in table 1.
Style PKZ Coupling style
8
9
10
Style PKD
Style PKZ and PKD 12
14
15
17
19
20
22
25
28
30
35
40
45
Displacements [in] Max. axial displacement ∆ KA Max. radial displacement ∆KR or max. angular displacement ∆KWSUMV
± 0.04 ± 0.04 ± 0.04
± 0.08 ± 0.08 ± 0.08 ± 0.08 ± 0.08 ± 0.08 ± 0.08 ± 0.08 ± 0.08 ± 0.08
± 0.12 ± 0.12 ± 0.12
n = 750 RPM
0.03
0.03
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.05
0.05
0.05
n = 1000 RPM
0.03
0.03
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
n = 1500 RPM
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.04
0.04
0.04
Threads for setscrew [in] Dimension G
M5
M8
M8
M8
M8
M8
M8
M8
M8
M10
M12
M12
M16
M16
M16
M16
Dimension t
0.71
0.91
1.06
1.18
0.39
0.59
0.59
0.59
0.59
0.79
0.79
0.79
0.79
0.98
0.98
1.18
Tightening torque TA [lb in]
18
89
89
89
89
89
89
89
89
150
354
354
708
708
708
708
NBR Elastomer elements (rectangular) 92 Sh-A Element size
1 8
Number of elements Dimensions of elastomer elements b x t x h [in]
10
2 10
10
3 10
12
12
3a
4
3b
4
5
6
7
8
12
12
16
16
16
16
20
20
1.37
1.17
1.37 1.57
1.72
1.78
b
0.72
0.98
1.07
1.07
t
0.39
0.60
0.63
0.72
0.77
0.72
0.77
0.87
0.93
h
0.74
0.94
0.97
1.06
1.36
1.17
1.36
1.60
1.67
20
2.05
2.29
0.88
1.13
1.15
2.36
2.35
2.72
Cyl. screw DIN 912 – Dimension Screw size MxI
M
M8
M8
M8
M10
M8
M10
M10
M12
M12
M16
M16
I [in]
1.18
0.98
0.98
1.18
1.18
1.18
1.57
1.57
2.17
2.17
2.36
Number Tightening torque TA [lb in] Ø D2 [in]
6
6
6
6
8
8
8
8
10
10
10
221
221
221
221
221
434
434
761
761
2611
1859
3.62
4.17
4.96
4.84
5.91
6.38
7.01
7.95
9.45
10.83
12.13
Ø D4 [in] (H7/h7)
2.95
3.54
4.21
4.13
5.12
5.51
6.30
6.69
8.27
9.45
10.63
• Inch bore sizes machined to AGMA 9002-A86 class 1 fit Inch key sizes machined to ANSI B17.1 • Metric bore sizes machined to ISO H7 fit Metric key sizes machined to DIN 6885 JS9 Components
1
3D
See installation instructions at www.ktrcorp.com.
2D
Components Style PKD 1 = Jaw section * 2D = Flange hub 3D = Jaw ring * To be preferably used drive-sided
64
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
Torsionally flexible, nonfailsafe couplings Style PKA (dismountable coupling) • • • • • •
• • • Components
1A
1B
2B
For advanced drive technology R
Torsionally flexible, maintenance-free Reduces Vibration Shear Design Short design / shaft gap In the PKD the elastomer packages can be changed while assembled Approved according to EC Standard 94/9/EC (Explosion Certificate ATEX 95) Inch bore sizes machined to AGMA 9002-A86 class 1 fit Inch key sizes machined to ANSI B17.1 Metric bore sizes machined to ISO H7 fit Metric key sizes machined to DIN 6885 JS9 See installation instructions at www.ktrcorp.com
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
POLY
®
2A
Components: Style PKA 1A/2A = Coupling flange 1B = Spacer 2B = Driving flange 1A and 1B to be preferably used drive-sided
Style PKA Nominal torque TKN [lb in]
Max. speed n [RPM]
Finish bore dmax. [in] Part 1a / 2a
8
372
5000
9
637
5000
10
985
12
POLY Size
Dimensions [in] General
Thread of setscrew
DH
DF
l1; l 2
b
MA
E
L
LPKA
LZ
1.500
3.39
2.17
1.38
0.06
1.00
0.12
1.688
3.82
2.76
1.61
0.06
1.20
0.12
5000
2.000
4.21
3.07
1.81
0.06
1.40
0.16
1505
5000
2.344
5.16
3.74
2.17
0.06
1.69
0.16
14
1859
4800
2.750
5.59
4.13
2.36
0.06
1.89
0.16
15
2832
4300
2.750
6.18
4.33
2.56
0.06
1.95
0.16
17
3540
3800
3.125
6.93
4.92
2.76
0.06
2.15
0.16
19
5842
3500
3.500
7.68
5.31
2.95
0.06
2.34
0.16
20
7258
3300
3.938
8.07
5.91
3.15
0.08
2.40
0.16
22
9736
3000
4.125
8.82
6.30
3.54
0.08
2.80
0.16
25
14162
2700
4.875
10.12
7.68
3.94
0.08
3.19
0.20
28
22128
2350
5.375
11.34
8.46
4.33
0.08
3.58
0.20
3.94 3.94 5.51 3.94 5.51 3.94 5.51 7.09 3.94 5.51 7.09 3.94 5.51 7.09 9.84 3.94 5.51 7.09 9.84 5.51 7.09 9.84 5.51 7.09 9.84 7.09 9.84 5.51 7.09 9.84 5.51 7.09 9.84
6.69 7.17 8.74 7.56 9.13 8.27 9.84 11.42 8.66 10.24 11.81 9.06 10.63 12.20 14.96 9.45 11.02 12.60 15.35 11.42 12.99 15.75 11.81 13.39 16.14 14.17 16.93 13.39 14.96 17.72 14.17 15.75 18.50
2.60 2.48 4.06 2.40 3.98 2.17 3.74 5.31 2.13 3.70 5.28 2.09 3.66 5.24 7.99 2.09 3.66 5.24 7.99 3.58 5.16 7.91 3.19 4.76 7.52 5.00 7.76 3.19 4.76 7.52 2.91 4.49 7.24
Order form:
G
t
Tightening torque TA [lb in]
M5 0.59
18
M8 0.59
89
M8 0.79
89
M8 0.79
89
M8 0.98
89
M8 0.98
89
M8 0.98
89
M8 1.18
89
M8 1.18
89
M10 1.38
150
M12 1.57
354
M12 1.77
354
POLY®
PKA
28
140
Ø 38
Ø 40
Coupling style
Style
Size
Dismountable L
Finish bore part 1a
Finish bore part 2a
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
65
Torsionally flexible couplings
POLY
®
For advanced drive technology
Coupling Alignment · Setscrews · Elastomers
R
Style PKA Coupling style
8
9
10
12
14
15
17
19
20
22
25
28
±0.04
±0.04
±0.04
±0.08
±0.08
±0.08
±0.08
±0.08
±0.08
±0.08
±0.08
±0.08
n = 750 RPM
0.03
0.03
0.03
0.03
0.03
n = 1000 RPM
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.03
0.03
0.03
0.03
n = 1500 RPM
0.02
0.02
0.02
0.02
0.03
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.02
0.03
0.03
0.03
0.03
0.03
0.03
0.03
Dimension G
M5
M8
M8
M8
M8
M8
M8
M8
M8
M10
M12
M12
Dimension t
0.71
0.91
1.06
1.18
0.39
0.59
Tightening torque TA [lb in]
18
89
89
89
89
89
0.59
0.59
0.59
0.79
0.79
0.79
89
89
89
150
354
354
3b
4
5
Misalignments [in] Max. axial displacement ∆ KA Max. radial displacement ∆KR or max. angular displacement ∆KW
Threads for setscrew [in]
NBR Elastomer elements (rectangular) 92 Sh-A Element size
1
Number of elements Dimensions of elastomer elements b x t x h [in]
10
10
12
3a 12
4
12
12
16
16
16
0.72
0.98
1.07
1.09
1.37
1.17
1.37
1.57
t
0.39
0.60
0.63
0.72
0.77
0.72
0.77
0.87
h
0.74
0.94
0.97
1.06
1.36
1.17
1.36
1.60
Cap screw DIN EN ISO 4762 – Dimension
Flange connection Screw size MxI
10
3
b
8
10
2
M
M6
M6
M6
M8
M8
M10
M10
M10
M10
M10
M10
M12
I [mm]
16
18
18
20
20
25
25
25
30
30
30
30
Number
4
5
5
5
5
6
6
6
6
8
8
8
Tightening torque TA [lb in]
89
89
89
221
221
434
434
434
434
434
434
761
Ø D2
2.76
3.35
3.66
4.45
4.92
5.31
5.91
6.30
6.89
7.48
8.86
9.84
Ø D3
2.36
2.76
3.15
3.54
3.94
4.33
4.33
4.72
5.12
5.51
5.91
6.69
Radial and angular misalignments can occur simultaneously. The combined sum V = ∆KR + (Emax. – Emin.) must not exceed the values listed in table 1. • Inch bore sizes machined to AGMA 9002-A86 class 1 fit In ch key sizes machined to ANSI B17.1 • Metric bore sizes machined to ISO H7 fit Metric key sizes machined to DIN 6885 JS9 See installation instructions at www.ktrcorp.com. Components
1A
1B
2B
2A
Components Style PKA 1A/2A = Coupling flange 1B = Spacer 2B = driving flange 1A and 1B to be preferably used drive-sided
66
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
For advanced drive technology
REVOLEX® KX Torsionally flexible pin & bush coupling Catalog Contents
Page
Coupling Features
68
Technical Data
69
Standard Designs
70-71
Coupling Selection
72
Applications
73
Tire couplings Flexible, torsionally flexible couplings Catalog Contents
Page
Standard Designs
74
67
REVOLEX® KX Torsionally flexible pin & bush coupling Coupling description
For advanced drive technology
General description REVOLEX® KX is a torsionally flexible, failsafe pin & bush coupling. It can be plugged in axially and is characterized by its short design. In addition, REVOLEX® KX allows for an easy disassembly of the elastomer rings including the pins while being assembly. Taking into account the transmittable torque, REVOLEX® KX is based on the POLY-NORM® coupling. The REVOLEX® KX coupling compensates for every kind of shaft misalignment while transmitting the torque safely.
Operation/Arrangement The coupling consists of two hubs; one pin hub with the corresponding pins and a bush hub. The torque is transmitted via the steel pins with their taper elastomer rings and the corresponding bores in the bush hub. As a result all kinds of shaft misalignment, for example caused by inaccurate alignment of the driving or driven elements, is compensated for reliably and vibrations and shocks are compensated for excellently. The coupling is maintenance-free and is used in general engineering and the pump industry, conveyor technology, etc. For an optimum adjustment to the different applications, 14-off sizes are available covering torques up to 215,000 lb ft. Apart from the standard program customized solutions are available.
General information about the elastomer ring Material Hardness Permanent temperature range [°F] Max. temperature (short-term) [°F] Applications
Perbunan 80 Shore A - 22 to + 176 - 58 to + 248 General engineering Heavy industry Pump industry Conveyor technology Standard applications of average elasticity
Resistant to
Gasoline, diesel Acids, bases Tropics (Salt-) Water (hot/cold) Oils, greases Propane, butane Natural gas, city gas ...
Other elastomer materials on request.
68
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
R
REVOLEX® KX
For advanced drive technology
Torsionally flexible pin & bush coupling Technical data REVOLEX® KX
Torque [lbin] NBR 80Sh-A Nominal Max. Alternating TKN TKmax. TKW
Size
KX105 KX120 KX135 KX150 KX170 KX190 KX215 KX240 KX265 KX280 KX305 KX330 KX355 KX370
57392 89208 121688 158858 227445 316830 411083 631536 839954 1057575 1300950 1592115 1951425 2575350
114785 186381 243375 317715 454890 633660 822165 1263072 1679907 2115150 2601900 3184230 3902850 5150700
17992 29993 40781 53596 83190 115581 149990 252614 335981 357894 438606 529230 667998 763313
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
R
Max. permissible misalignment [in] 1)
Max. speed [RPM] at V = 35 m/s
Max. bore [in]
Axiale DKa
Radial DKr
Angular DKw
2000 1800 1600 1450 1250 1100 1000 900 800 720 675 625 575 535
4.313/4.875 4.875/5.625 5.500/5.875 6.250 7.000 8.000 9.000 9.750 11.125 12.375 13.000 14.000 15.000 17.625
±.08 ±.08 ±.08 ±.08 ±.10 ±.10 ±.10 ±.10 ±.10 ±.10 ±.10 ±.16 ±.16 ±.16
0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.03 0.03
0.02 0.02 0.02 0.02 0.04 0.04 0.04 0.05 0.05 0.05 0.06 0.09 0.09 0.09
1) Misalignment at n = 500 RPM. Angular and radial misalignment can occur at the same time. The sum of all misalignments must not exceed the figures set forth in the table. Couplings may be dynamically balanced on request (semi-spline balancing G 6,3 with 500 RPM.) For peripheral speeds exceeding V = 98 ft/s, we would recommend only steel or nodular iron, respectively. Dynamic balancing required. For circumferential speeds exceeding 115 ft/s please consult with KTR's engineering department.
Misalignment Axial misalignment DKa
Lmax./ min = L + DKa [in]
Radial misalignment DKr
Angular misalignment DKw
DKw = Emax. – Emin. [in]
Assembly instructions The permissible misalignment figures of the flexible REVOLEX® KX couplings mentioned are general standard values, taking into account the coupling load up to the rated torque TKN of the coupling and an operating speed n = 500 RPM as well as an ambient temperature of + 86° F. The displacement figures may only be used separately - if various kinds of displacement arise in parallel, the displacement figures may only be used proportionately. For the assembly of the coupling please make sure that the distance dimension E is adhered to accurately to make sure that the coupling remains flexible during operation. See KTR assembly instructions, KTR standard 49410 at our homepage www.ktrcorp.com.
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
69
For advanced drive technology
REVOLEX KX ®
R
Torsionally flexible pin & bush coupling ● Torsionally flexible, maintenance free ● Vibration Dampening NBR inserts ● Easy Maintenance without moving components (motor and pump) ● Compact Failsafe design ● Simple axial assembly ● Hubs availabel in Cast Iron or Steel on request ● See www.ktr.com for more information
Components
1
3
Components Type KX
2
1 = Sleeve 2 = Pin 3 = Complete pin
Torques [lb in] 1)
Max. speed 2) [RPM]
Size TKN
TKmax.
Dimensions [in]
Finish bore [min. - max.] d1
d2
L
l1/l2
E
DH
D1
D2
N1
N2
M*
Moment of Approx. inertia 3) weight 3) [lb in/sec2] [lb]
KX-105
57392
114785
2000
1.3-4.3
1.3-4.9
9.33
4.61
0.12
12.99
7.09
7.95
2.20
1.18
0.87
6.823
136
KX-120
89208
178416
1800
2.4-4.9
2.4-5.7
10.63
5.20
0.24
14.57
8.11
9.13
2.99
1.81
1.77
14.26
212
KX-135
121688
243375
1600
2.6-5.5
2.6-5.9
11.81
5.79
0.24
16.50
9.06
9.45
2.99
1.81
1.18
23.76
285
KX-150
158858
317715
1450
3.2- 6.2
13.23
6.50
0.24
17.99
10.08
10.24
2.99
1.81
0.47
34.40
358
KX-170
227445
454890
1250
3.7- 7.0
15.04
7.40
0.24
20.98
11.50
11.50
3.62
2.48
1.69
81.11
601
KX-190
316830
633660
1100
4.8- 8.0
16.85
8.31
0.24
23.50
12.99
12.99
3.62
2.48
0.79
130.7
793
KX-215
411083
822165
1000
5.3- 9.0
18.90
9.33
0.24
25.98
14.49
14.49
3.62
2.48
1.18
201.5
1025
KX-240
631536
1263072
900
5.9- 9.8
21.02
10.39
0.24
29.02
16.02
16.02
4.80
2.99
1.69
384.8
1533
KX-265
839954
1679907
800
6.4-11.2
23.23
11.50
0.24
32.52
17.99
17.99
4.80
2.99
0.59
620.8
2006
KX-280
1057575 2115150
720
6.6-12.4
24.72
12.24
0.24
36.50
20.00
20.00
4.80
2.99
2.95
996.8
2608
KX-305
1300950 2601900
675
7.2-12.9
25.75
12.76
0.24
39.02
20.98
20.98
4.80
2.99
2.44
1301
3018
KX-330
1592115 3184230
625
7.8-13.9
26.22
12.99
0.24
42.01
22.52
22.52
4.80
2.99
2.20
1752
3523
KX-355
1951425 3902850
575
8.8-14.9
28.27
14.02
0.24
45.51
24.02
24.02
4.80
2.99
1.18
2601
4562
KX-370
2575350 5150700
535
8.8-17.7
30.31
15.04
0.24
49.21
28.35
28.35
4.80
2.99
0.16
3837
5796
* Drop-out center dimension 2) Higher speeds on request
1) Standard material NBR 80 Shore A 3) Relating to max. bore
Finish bore according to ISO fit H7, feather keyway according to DIN 6885 sheet 1 - JS9.
Order form:
70
REVOLEX® KX-170
Part 1 Ø 120
Part 2 Ø 150
Coupling type/size
Sleeve
Pin
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
For advanced drive technology
REVOLEX KX ®
R
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
Torsionally flexible pin & bush coupling
Pin material C40 (standard)
Pin material 42CrMo4
Pin/elastomer ring
REVOLEX® KX Size
Size
KX-105
Number
Component 3.2
Component 3.1 / 3.1a
Component 3.3
Component 3.4
Elastomer ring NBR 80 Shore A
Pin
Nut DIN EN ISO 10511
Screw DIN EN ISO 4017
Pin
Elastomer ring
D
l1
l2
d1
3
12
48
1.97
0.50
0.35
1.00
KX-120
4
10
40
KX-135
4
12
48
2.48
0.70
0.49
KX-150
4
14
56
KX-170
5
10
40
KX-190
5
12
48
3.37
0.90
KX-215
5
14
56
KX-240
6
10
40
KX-265
6
12
48
KX-280
6
14
56
KX-305
6
16
64
4.48
1.20
KX-330
6
18
72
KX-355
6
20
80
KX-370
6
24
96
3.1
3.2
3.3
L1
L2
SW1
SW3
M
SW2
M
SW4
1.00
4.65
4.57
1.26
0.67
M20
1.18
M16
0.94
1.20
1.12
6.34
6.24
1.42
0.67
M24
1.42
M20
1.18
0.60
1.70
1.63
8.27
8.07
1.97
0.67
M36
2.17
M24
1.42
0.80
2.30
2.25
10.47
10.04
2.76
0.67
M48
2.95
M27
1.61
d2
3.1a
3.2
3.3a
3.4
KX-105 KX-120 KX-135 KX-150 KX-170 KX-190 KX-215 KX-240 KX-265 KX-280 KX-305 KX-330 KX-355 KX-370 1018 1770 1770 1770 6284 6284 6284 15266 15266 15266 15266 15266 15266 15266 Tightening torque TA [lb in] 3.1a 2567 4956 4956 4956 8585 8585 8585 12833 12833 12833 12833 12833 12833 12833 REVOLEX® KX size
Tightening torque TA [lb in] 3.1
REVOLEX® KX-D ● Pins are arranged alternately ● Increase of transmittable torque by up to 44% ● Symmetrical arrangement of pin and bush nut KX-D
TKN
TKmax.
KX-D
105
76553
153105
240
815970 1631940
TKN
TKmax.
120
125051 250101
265
1078815 2157630
135
165407 330813
280
1405380 2810760
150
206913 413826
305
1693005 3386010
170
326565 653130
330
2223120 4446240
190
429225 858450
355
2647035 5294070
215
547815 1095630
370
3343530 6687060
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
71
REVOLEX® KX
For advanced drive technology
Torsionally flexible pin & bush coupling Coupling selection
R
The selection of the REVOLEX® KX coupling has to be dimensioned in a way that the permissible coupling load is not exceeded with any operating condition. For this purpose a comparison between the loads that arise and the permissible coupling parameters has to be performed. 1 Drives without periodical torsional vibrations 2. Drives with periodical torsional vibrations. For drives e. g. centrifugal pumps, fans, screw compressors, etc. subject to high torsional vibrations, e. g. diesel engines, pisThe coupling is selected taking into account the rated torques ton compressors, piston pumps, generators, etc., it is necesTKN and maximum torque TK max. sary to perform a torsional vibration calculation to ensure a safe operation. If requested, we perform the torsional vibration 1.1 Load by rated torque calculation and the coupling selection in our company. For necessary details please see KTR standard 20004. Determination of the actual rated torque TN of the machine.
TN [lbin] =
Taking into account the operating factor SB and the temperature factor St, the permissible rated torque TKN of the coupling has to be at least as high as the rated torque TN of the machine.
63,025 x HP –––––––––– RPM
TKN $ TN · SB · St
Description
Symbol
Rated torque of coupling
Torque that can continuously be transmitted over the entire permissible speed range
TK max
Torque that can be transmitted as dynamic load $ 105 times or 5 x 104 as vibratory load, respectively, during the entire operating life of the coupling
Vibratory torque of coupling
TKW
Torque amplitude of the permissible periodical torque fluctuation with a frequency of 10 Hz and a basic load of TKN or dynamic load up to TKN, respectively
Rated torque of machine
TN
Stationary rated torque on the coupling
Maximum torque of coupling
1.2 Taking into account short-term shocks As an example: for the startup or braking of drives two times the rated torque of the coupling is admitted for up to 10 times an hour.
Definition or explanation
TKN
TK max $ 2 · TKN
1.3 Determination of the necessary operating factor SB see table It is necessary to consult with the engineering department of KTR if:
Service factor St for temperature – 22 °F + 104 °F + 140 °F + 176 °F + 86°F
● the operating speed is close to the critical speed (S. 65) ● the ambient temperature exceeds 176 °F ● more than 10 starts per hour are performed
St
1,0
1,2
1,4
1,8
Permissible load on feather key of the coupling hub The shaft-hub-connection has to be verified by the customer. Permissible surface pressure according to DIN 6892 (method C).
Cast iron EN-GJL-250 (GG 25) material nodular iron EN-GJS-400-15 (GGG 40) material steel S355J2G3 (St 52.3)
320,000 PSI 320,000 PSI 356,000 PSI
for other steel materials pzul =
0,9 · Re02
Example of calculation: Kneading machine drive with rotary current motor Details of machine on driving side: Rotary current Motor power Speed
motor size 560 P = 1340 n = 991 RPM
Coupling selection: Load by rated torque: TN =
63,025 x 1340 HP –––––––––– 991 RPM
Operating factor SB = 1,75 Temperature factor St = 1,2
85,220 lb in (see page 69) (see table)
General details: Ambient temperature
= +104 °F
Calculation of coupling torque: TKN $ TN · 1,75 · 1,2 = 178,962 lb in ➔ Selected:
72
REVOLEX® KX-170
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
Torsionally flexible pin & bush coupling Operating factor SB
For advanced drive technology R
The operating factors listed are based on experiences estimating the operating behavior of driving and driven combinations. For a periodic impulse of the machine or driving or braking of big masses it is necessary to perform a selection in accordance with DIN 740.
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
ROTEX ® ROTEX ® GS POLY-NORM® POLY® REVOLEX® KX TOOLFLEX®
REVOLEX® KX
73
REVOLEX® KX
For advanced drive technology
Torsionally flexible pin & bush coupling Type KT
R
● Highly flexible shear coupling design ● Easy Maintenance without moving components (motor and pump) ● High misalignment capability ● Temperature range from - 40 °F to + 149 °F (natural rubber) - 13 °F to + 167 °F with fabric insert on request ● Hubs available in Cast Iron or Steel on request ● Call KTR for availability
Screws
Screws
Size
Size z = No. TA [lb in]
M1
TKN
TKmax.
Max. speed 1) [RPM]
Torques [lb in] Size
z = No. TA [lb in]
M1
KT-40
M6x25
8
133
KT-90
M10x50
12
655
KT-45
M6x30
8
133
KT-100
M12x50
12
1133
KT-50
M6x35
8
133
KT-110
M14x70
12
1814
KT-60
M6x30
10
133
KT-120
M16x70
12
2788
KT-70
M8x40
12
327
KT-140
M20x70
12
5443
KT-80
M8x50
12
327
KT-160
M24x80
12
9381
KT-85
M10x45
12
655
KT-180
M24x90
12
9381
Finish bore d (min-max)
DH
L
D1
D2
l
G
Weight [lbs] 4.62
Dimensions [in]
KT-40
195
389
4500
0.438-1.125
4.09
2.64
3.23
-
0.87
0.87
KT-45
345
690
4400
0.438-1.250
4.72
2.87
3.70
-
0.98
0.94
5.06
KT-50
504
1009
4300
0.563-1.438
5.24
3.62
3.94
-
1.26
0.98
9.24
KT-60
991
1982
3400
0.625-1.750
6.50
4.41
4.92
2.87
1.50
1.30
11.7
KT-70
1522
3044
2900
0.625-2.125
7.76
5.20
5.67
3.23
1.77
1.57
18.5
KT-80
2381
4761
2700
0.813-2.500
8.31
5.91
6.57
3.74
2.01
1.69
27.5
KT-85
2876
5753
2550
0.813-2.750
8.74
6.02
7.09
4.06
2.09
1.73
31.9
KT-90
3425
6850
2430
0.813-2.875
9.25
6.46
7.48
4.33
2.24
1.81
34.3
KT-100
4744
9487
2250
1.000-3.313
10.00
7.01
8.50
4.88
2.36
1.89
48.4
KT-110
6699
13399
2050
1.188-3.500
10.98
7.09
9.17
5.28
2.56
1.73
64.2
KT-120
11133
22267
1820
1.438-4.000
12.36
8.15
10.39
5.98
2.99
1.93
94.4
KT-140
17691
35382
1590
2.000-4.625
14.13
8.03
12.32
7.68
3.50
0.94
140
KT-160
29276
58552
1420
2.375-5.500
15.83
8.66
13.58
8.50
4.02
1.18
198
KT-180
51551
103103
1210
2.875-5.875
18.50
10.16
15.67
10.47
4.49
1.81
319
1) higher speeds on request
Guidelines for operating factor SB Application
SB - E. motor
SB - I. C. engine
with constant operation and low masses to be accelerated: e. g. centrifugal pumps, small ventilators, light conveyor units, ...
1.25
3.0
with unconstant operation and medium masses to be accelerated: e. g. machine tools, screw-type compressors, piston pumps, ...
1.5
3.0
with unconstant operation and large masses to be accelerated and heavy shocks: e. g. punches, piston compressors, hammer drives, cranes, ...
2.0
4.0
3.0
5.0
with unconstant operation and very large masses to be accelerated and heavy shocks: e. g. large marine propelling screws, piston compressors 1-2 cylinders, ...
74
Metric catalog available: web www.ktrcorp.com, call (219) 872-9100 or fax (219) 872-9150
