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Oldham Couplings - Clamping / Set Screw

Oldham Couplings - Clamping / Set Screw

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  • Oldham Couplings - Clamping / Set Screw
  • Oldham Couplings - Clamping / Set Screw

"Have the spacer protruded to reduce load applied to the shaft, by naturally tolerating large angular/lateral misalignment."

(i)Caution

  • Please check the content on our website as the PDF does not contain the most up-to-date information.

Dimensional Drawing

CPO

CPOCG (Short)

CPOC

D = 5.9 to 32

D = 40 to 118

Coupling - Oldham, Clamping / Set Screw: Related Image
[ ! ] Recommended Tolerance of Shaft Diameter: h7.
[!] Operating Temperature: -20°C to 80°C
[ ! ] The lateral, angular, and axial misalignment values shown are for each occurring individually. When multiple misalignments are occurring simultaneously, the allowable maximum value of each will be reduced to 1/2.
TYPE[M] Material[S] Surface Treatment
HubSpacerHex Socket Head Cap Screw
Set Screw
HubHex Socket Head Cap Screw
Set Screw
CPOCAluminum AlloyPolyacetalSCM435AnodizedBlack Oxide Film
CPO
Parts[M] Material[S] Surface Treatment 
HubAluminum AlloyAnodized 
SpacerPolyacetal 
Set ScrewSCM435Black Oxide Film

Specification Table

Part NumberShaft Bore Dia. d1Shaft Bore Dia. d2
CPO25810
CPOC2068
Part Numberd1, d2 Selection (However, d1 ≤ d2)d3LtFASet Screw / Clamp Screw
TypeDMTightening Torque
(N⋅m)
CPO5.911.52                                   8.42.531.25M20.3
7.91 22.53                                 9.82.54.81.25M20.3
9.9  2 34                                10.42.94.61.5M20.3
11.9    344.55                              14.53.96.72M30.7
16    34 566.35                            718743.5M30.7
20     4 566.35 8                          923954.5M41.7
25       566.35 89.52510                        11281165.5M54
32          8 10 1214                      14.5331376.5M67
* 40            10 12141516                    17321447
* 43          89.5251011121415161819                  21.75216.5197.1M54
* 53            101112141516181920222425              25.758.319.519.37.5M67
* 57                151618192022242525.428            2676.226.922.49.9M815
* 73                  18192022242525.4283032 35        35.375.52525.512.2M815
CPOC16      56                              72912.5435M2.51
20       66.35 8                           9331456.5
25        6.35 8 10                         113916.563.89M31.5
32          8 10111214                      14.5451974.511M42.5
* 40              12141516                    1750234713M54
* 43          89.5251011121415161819                  21.75216.5195.814.7M58
* 53            101112141516181920222425              25.758.319.519.36.320M58
* 57                151618192022242525.428            2676.226.922.47.721.2M613
* 73                1516181920222425 283032343540       35.381.52825.51027M830
* 88                1516181920222425 283032343540424550    40.59733.5301231.5M1050
* 118                       25 2830323435404245505255586050.513840.5571340M1290
CPOCG12    345                               614.952.54M20.5
16    3456                              82173.55M2.51
20      566.3578                           1022.16.5
25        6.3578 10                         1427.2849M31.5
32          8 10111214                      1833.310511M42.5
* 43          89.5251011121415161819                  21.74716.5145.814.7M58
* 53            101112141516181920222425              25.753.119.514.16.320M58
* 57                151618192022242525.428            2656.826.937.721.2M613
* 73                1516181920222425 283032343540       35.375.52819.51027M830
[ ! ] * D40, D43, D53, D57, D73, D88, and D118 spacers are black.
Part NumberAllowable Torque
(N⋅m)
Allowable Angular Misalignment
(°)
Allowable Lateral Misalignment
(mm)
Static Torsional
Spring Constant
(N·m/rad)
Max. Rotational Speed
(r/min)
Moment of Inertia
(kg⋅m2)
Mass
(g)
TypeD
CPO5.90.21.50.55220007.4 × 10-80.5
7.90.50.710200008.4 × 10-90.9
9.90.70.925180002.4 × 10-81.7
11.90.8155150006.3 × 10-83
160.73131390003.2 × 10−77
201.21.560310001.0 × 10−614
2522140250003.0 × 10−627
324.52.5280190009.5 × 10−650
4093540150002.3 × 10−580
4312.51.53120080003.7 × 10−5135
53203.2140070001.0 × 10−4228
57343.5260060001.8 × 10−4345
73603.5480045004.5 × 10−4567
CPOC160.73131390005.8 × 10−712
201.21.560310001.5 × 10−619
2522140250004.4 × 10−636
324.52.5280190001.4 × 10−569
4093540150004.1 × 10−5130
4312.51.53120080003.4 × 10−5127
53203.2140070009.1 × 10−5217
57343.5260060001.6 × 10−4329
73653.5200045005.4 × 10−4670
881054250045001.2 × 10−31240
1182004.5630035006.5 × 10−32600
CPOCG120.220.69520007.1 × 10−83
160.4130390003 × 10−78
200.71.347310007.4 × 10−713
251.21.585250002.2 × 10−624
322.82190190007.3 × 10−648
4312.51.53120080003.0 × 10−5114
53203.2140074008.3 × 10−5197
57343.526006001.2 × 10−4232
73603.5480045004.5 × 10−4547
[!] The allowable torque varies depending on temperature.
AlterationsShaft Bore Dia.Keyway
Spec.
1 mm Increments
Applicable to 3.175, 4.5, 9.525, 12.7 or 15.875
Ordering Code LDC 3.175 RDC 7
CPO CPOC CPOCG
 
CPO
DLDC·RDC
163 to 6.35
204 to 8
255 to 10
328 to 14
4010 to 16
CPOC
DLDC·RDC
165 to 6
206 to 8
256.35 to 10
328 to 14
4012 to 16
CPOCG
DLDC·RDC
123 to 5
163 to 6
205 to 8
256.35 to 10
328 to 14
Ordering Code
LK4
RK5
Shaft Dia. d1, d2LK·RK
8·103
11·124
14·15·165
 [ NG ] Not applicable to D5.9 to 11.9, D43 to 118[ ! ] Keyway machining is available for ø8 or more.
[ NG ] Cannot be combined with shaft bore change (LDC, RDC) alterations.
[ ! ] For keyway dimensions, see below.
[ NG ] Not applicable to D5.9 to 11.9, D43 to 118
CodeLDC (Left Shaft)RDC (Right Shaft)LK (Left Shaft)RK (Right Shaft)

Part Number 

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Part Number
CPO16-[3,​4,​5,​6,​6.35]-[3,​4,​5,​6,​6.35]
CPO16-[3,​4,​5,​6,​6.35]-RDC[3-6/1]
CPO16-[3,​4,​5,​6,​6.35]-RDC[3.175,​4.5,​6.35]
CPO16-LDC[3-6/1]-[3,​4,​5,​6,​6.35]
CPO16-LDC[3-6/1]-RDC[3-6/1]
CPO16-LDC[3-6/1]-RDC[3.175,​4.5,​6.35]
CPO16-LDC[3.175,​4.5,​6.35]-[3,​4,​5,​6,​6.35]
CPO16-LDC[3.175,​4.5,​6.35]-RDC[3-6/1]
CPO16-LDC[3.175,​4.5,​6.35]-RDC[3.175,​4.5,​6.35]
CPO20-[4,​5,​6,​6.35,​8]-[4,​5,​6,​6.35,​8]
CPO20-[4,​5,​6,​6.35,​8]-RDC4.5
CPO20-[4,​5,​6,​6.35,​8]-RDC[4-8/1]
CPO20-LDC4.5-[4,​5,​6,​6.35,​8]
CPO20-LDC4.5-RDC4.5
CPO20-LDC4.5-RDC[4-8/1]
CPO20-LDC[4-8/1]-[4,​5,​6,​6.35,​8]
CPO20-LDC[4-8/1]-RDC4.5
CPO20-LDC[4-8/1]-RDC[4-8/1]
CPO25-[5,​6,​6.35,​8,​9.525,​10]-[5,​6,​6.35,​8,​9.525,​10]
CPO25-[5,​6,​6.35,​8,​9.525,​10]-RDC[5-10/1]
CPO25-LDC[5-10/1]-[5,​6,​6.35,​8,​9.525,​10]
CPO25-LDC[5-10/1]-RDC[5-10/1]
CPO32-[8,​10,​12,​14]-[8,​10,​12,​14]
CPO32-[8,​10,​12,​14]-RDC[8-14/1]
CPO32-[8,​10,​12,​14]-RDC[9.525,​12.7]
CPO32-LDC[8-14/1]-[8,​10,​12,​14]
CPO32-LDC[8-14/1]-RDC[8-14/1]
CPO32-LDC[8-14/1]-RDC[9.525,​12.7]
CPO32-LDC[9.525,​12.7]-[8,​10,​12,​14]
CPO32-LDC[9.525,​12.7]-RDC[8-14/1]
CPO32-LDC[9.525,​12.7]-RDC[9.525,​12.7]
CPO40-[10,​12,​14,​15,​16]-[10,​12,​14,​15,​16]
CPO40-[10,​12,​14,​15,​16]-RDC[10-16/1]
CPO40-[10,​12,​14,​15,​16]-RDC[12.7,​15.875]
CPO40-LDC[10-16/1]-[10,​12,​14,​15,​16]
CPO40-LDC[10-16/1]-RDC[10-16/1]
CPO40-LDC[10-16/1]-RDC[12.7,​15.875]
CPO40-LDC[12.7,​15.875]-[10,​12,​14,​15,​16]
CPO40-LDC[12.7,​15.875]-RDC[10-16/1]
CPO40-LDC[12.7,​15.875]-RDC[12.7,​15.875]
CPOC16-[5,​6]-[5,​6]
CPOC20-[6,​6.35,​8]-[6,​6.35,​8]
CPOC20-[6,​6.35,​8]-RDC7
CPOC20-LDC7-[6,​6.35,​8]
CPOC20-LDC7-RDC7
CPOC25-[6.35,​8,​10]-[6.35,​8,​10]
CPOC25-[6.35,​8,​10]-RDC[6.35,​9.525]
CPOC25-[6.35,​8,​10]-RDC[7-10/1]
CPOC25-LDC[6.35,​9.525]-[6.35,​8,​10]
CPOC25-LDC[6.35,​9.525]-RDC[6.35,​9.525]
CPOC25-LDC[6.35,​9.525]-RDC[7-10/1]
CPOC25-LDC[7-10/1]-[6.35,​8,​10]
CPOC25-LDC[7-10/1]-RDC[6.35,​9.525]
CPOC25-LDC[7-10/1]-RDC[7-10/1]
CPOC32-[8,​10,​11,​12,​14]-[8,​10,​11,​12,​14]
CPOC32-[8,​10,​11,​12,​14]-RDC[8-14/1]
CPOC32-[8,​10,​11,​12,​14]-RDC[9.525,​12.7]
CPOC32-LDC[8-14/1]-[8,​10,​11,​12,​14]
CPOC32-LDC[8-14/1]-RDC[8-14/1]
CPOC32-LDC[8-14/1]-RDC[9.525,​12.7]
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSShaft Bore Dia. 1 d1 (or d)
(Ø)
Shaft Bore Dia. 2 d2 (or d)
(Ø)
O.D.
(Ø)
Overall Length
(mm)
Allowable Torque Range
(N•m)
Allowable Torque
(N•m)
Allowable Angular Misalignment
(deg)
Allowable Lateral Misalignment
(mm)
Allowable Lateral Misalignment Range
(mm)
Max. Rotational Speed
(r/min)
Moment of Inertia
(kg・m2)
Standard/Short Shaft Tightening Method LDC
(mm)
RDC
(mm)

-

1 Piece(s) 6 Day(s) or more 103 ~ 6.353 ~ 6.3516180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw--

-

1 Piece(s) 6 Day(s) or more 103 ~ 6.35-16180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw-3 ~ 6

-

1 Piece(s) 6 Day(s) or more 103 ~ 6.35-16180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw-3.175 ~ 6.35

-

1 Piece(s) 6 Day(s) or more 10-3 ~ 6.3516180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw3 ~ 6-

-

1 Piece(s) 6 Day(s) or more 10--16180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw3 ~ 63 ~ 6

-

1 Piece(s) 6 Day(s) or more 10--16180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw3 ~ 63.175 ~ 6.35

-

1 Piece(s) 6 Day(s) or more 10-3 ~ 6.3516180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw3.175 ~ 6.35-

-

1 Piece(s) 6 Day(s) or more 10--16180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw3.175 ~ 6.353 ~ 6

-

1 Piece(s) 6 Day(s) or more 10--16180.05~1.000.7310.41~1.0390003.2×10-7StandardSet Screw3.175 ~ 6.353.175 ~ 6.35

-

1 Piece(s) 6 Day(s) or more 104 ~ 84 ~ 820231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw--

-

1 Piece(s) 6 Day(s) or more 104 ~ 8-20231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw-4.5

-

1 Piece(s) 6 Day(s) or more 104 ~ 8-20231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw-4 ~ 8

-

1 Piece(s) 6 Day(s) or more 10-4 ~ 820231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw4.5-

-

1 Piece(s) 6 Day(s) or more 10--20231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw4.54.5

-

1 Piece(s) 6 Day(s) or more 10--20231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw4.54 ~ 8

-

1 Piece(s) 6 Day(s) or more 10-4 ~ 820231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw4 ~ 8-

-

1 Piece(s) 6 Day(s) or more 10--20231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw4 ~ 84.5

-

1 Piece(s) 6 Day(s) or more 10--20231.01~3.001.231.51.1~3.0310001.0×10-6StandardSet Screw4 ~ 84 ~ 8

-

1 Piece(s) 6 Day(s) or more 105 ~ 105 ~ 102528.21.01~3.002321.1~3.0250003.0×10-6StandardSet Screw--

-

1 Piece(s) 6 Day(s) or more 105 ~ 10-2528.21.01~3.002321.1~3.0250003.0×10-6StandardSet Screw-5 ~ 10

-

1 Piece(s) 6 Day(s) or more 10-5 ~ 102528.21.01~3.002321.1~3.0250003.0×10-6StandardSet Screw5 ~ 10-

-

1 Piece(s) 6 Day(s) or more 10--2528.21.01~3.002321.1~3.0250003.0×10-6StandardSet Screw5 ~ 105 ~ 10

-

1 Piece(s) 6 Day(s) or more 108 ~ 148 ~ 143232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw--

-

1 Piece(s) 6 Day(s) or more 108 ~ 14-3232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw-8 ~ 14

-

1 Piece(s) 6 Day(s) or more 108 ~ 14-3232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw-9.525 ~ 12.7

-

1 Piece(s) 6 Day(s) or more 10-8 ~ 143232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw8 ~ 14-

-

1 Piece(s) 6 Day(s) or more 10--3232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw8 ~ 148 ~ 14

-

1 Piece(s) 6 Day(s) or more 10--3232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw8 ~ 149.525 ~ 12.7

-

1 Piece(s) 6 Day(s) or more 10-8 ~ 143232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw9.525 ~ 12.7-

-

1 Piece(s) 6 Day(s) or more 10--3232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw9.525 ~ 12.78 ~ 14

-

1 Piece(s) 6 Day(s) or more 10--3232.73.01~5.004.532.51.1~3.0190009.5×10-6StandardSet Screw9.525 ~ 12.79.525 ~ 12.7

-

1 Piece(s) 6 Day(s) or more 1010 ~ 1610 ~ 1640325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw--

-

1 Piece(s) 6 Day(s) or more 1010 ~ 16-40325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw-10 ~ 16

-

1 Piece(s) 6 Day(s) or more 1010 ~ 16-40325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw-12.7 ~ 15.875

-

1 Piece(s) 6 Day(s) or more 10-10 ~ 1640325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw10 ~ 16-

-

1 Piece(s) 6 Day(s) or more 10--40325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw10 ~ 1610 ~ 16

-

1 Piece(s) 6 Day(s) or more 10--40325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw10 ~ 1612.7 ~ 15.875

-

1 Piece(s) 6 Day(s) or more 10-10 ~ 1640325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw12.7 ~ 15.875-

-

1 Piece(s) 6 Day(s) or more 10--40325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw12.7 ~ 15.87510 ~ 16

-

1 Piece(s) 6 Day(s) or more 10--40325.01~10.009331.1~3.0150002.3×10-5StandardSet Screw12.7 ~ 15.87512.7 ~ 15.875

-

1 Piece(s) 6 Day(s) or more 105 ~ 65 ~ 616290.05~1.000.7310.41~1.0390005.8×10-7StandardClamping--

-

1 Piece(s) 6 Day(s) or more 106 ~ 86 ~ 82033.81.01~3.001.231.51.1~3.0310001.5×10-6StandardClamping--

-

1 Piece(s) 6 Day(s) or more 106 ~ 8-2033.81.01~3.001.231.51.1~3.0310001.5×10-6StandardClamping-7

-

1 Piece(s) 6 Day(s) or more 10-6 ~ 82033.81.01~3.001.231.51.1~3.0310001.5×10-6StandardClamping7-

-

1 Piece(s) 6 Day(s) or more 10--2033.81.01~3.001.231.51.1~3.0310001.5×10-6StandardClamping77

-

1 Piece(s) 6 Day(s) or more 106.35 ~ 106.35 ~ 102539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping--

-

1 Piece(s) 6 Day(s) or more 106.35 ~ 10-2539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping-6.35 ~ 9.525

-

1 Piece(s) 6 Day(s) or more 106.35 ~ 10-2539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping-7 ~ 10

-

1 Piece(s) 6 Day(s) or more 10-6.35 ~ 102539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping6.35 ~ 9.525-

-

1 Piece(s) 6 Day(s) or more 10--2539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping6.35 ~ 9.5256.35 ~ 9.525

-

1 Piece(s) 6 Day(s) or more 10--2539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping6.35 ~ 9.5257 ~ 10

-

1 Piece(s) 6 Day(s) or more 10-6.35 ~ 102539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping7 ~ 10-

-

1 Piece(s) 6 Day(s) or more 10--2539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping7 ~ 106.35 ~ 9.525

-

1 Piece(s) 6 Day(s) or more 10--2539.21.01~3.002321.1~3.0250004.4×10-6StandardClamping7 ~ 107 ~ 10

-

1 Piece(s) 6 Day(s) or more 108 ~ 148 ~ 143244.73.01~5.004.532.51.1~3.0190001.4×10-5StandardClamping--

-

1 Piece(s) 6 Day(s) or more 108 ~ 14-3244.73.01~5.004.532.51.1~3.0190001.4×10-5StandardClamping-8 ~ 14

-

1 Piece(s) 6 Day(s) or more 108 ~ 14-3244.73.01~5.004.532.51.1~3.0190001.4×10-5StandardClamping-9.525 ~ 12.7

-

1 Piece(s) 6 Day(s) or more 10-8 ~ 143244.73.01~5.004.532.51.1~3.0190001.4×10-5StandardClamping8 ~ 14-

-

1 Piece(s) 6 Day(s) or more 10--3244.73.01~5.004.532.51.1~3.0190001.4×10-5StandardClamping8 ~ 148 ~ 14

-

1 Piece(s) 6 Day(s) or more 10--3244.73.01~5.004.532.51.1~3.0190001.4×10-5StandardClamping8 ~ 149.525 ~ 12.7

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Basic Information

Series Name Oldham Application Standard Features Low Moment of Inertia
Allowable Misalignment Angular Misalignment / Eccentricity Max. Rotational Speed Range(r/min) 10001~78000 Product Category Coupling Main Body
Buffer Material Polyacetal Operating Temperature(°C) -20::80

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