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Oldham Couplings Shaft Collar in Shell
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MOSC - Metric Set Screw Oldham Coupling
w/ keyways
Ruland Set Screw Oldham Coupling with Keyways

Features

  • Large parallel misalignment
  • Electrically isolating
  • Replaceable disk
  • Balanced design
  • Maximum speed: 4,500 RPM
  • Temperature Range (Deg. F)
    with Acetal Disc: -10° to 150°
    with Nylon Disk: -10° to 130°


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How to Order

For a complete coupling, order two hubs and one disk.

For example: order MOSC25-12-A, MOSC25-10-A and OD16/25-AT to form a complete coupling with a 25mm OD, 12mm and 10mm bores and a zero backlash disk.
Clamp Style Oldham Couplings
Set Screw Oldham Couplings
 

THROUGH BORE HUBS

  Click part number for 3D CAD file
Part Number Keyway
(mm) 		Bore
B (mm)		 OD (mm) Hub Length
LH (mm)		  Length
L (mm)		 Shaft Penetration
(mm)		 Set Screw
MOSC25-10-A 3 10 25.4 9.9 28.6 9.9 M4
MOSC25-12-A 4 12
MOSC33-10-A 3 10 33.3 15.0 47.6 15.0 M4
MOSC33-12-A 4 12
MOSC33-14-A 5 14
MOSC33-16-A 5 16
MOSC41-10-A 3 10 41.3 18.0 50.8 18.0 M5
MOSC41-12-A 4 12
MOSC41-14-A 5 14
MOSC41-16-A 5 16
MOSC41-17-A 5 17
MOSC41-19-A 6 19
MOSC41-20-A 6 20

DISKS

  Click part number for 3D CAD file
Part Number OD (mm) Material Rated Torque
(Nm)		 Torsional
Stiffness
(Deg/Nm)		 Static Break
Torque
(Nm)		 MISALIGNMENT
Angular (Deg) Parallel (mm) Axial Motion (mm)
OD8/13-AT 12.7 Acetal 0.68 0.636 3.9
0.5 0.10 0.05
OD12/19-AT 19.1 Acetal 2.25 0.380 10.5
0.5 0.20 0.10
OD16/25-AT 25.4 Acetal 4.75 0.291 19.0
0.5 0.20 0.10
OD21/33-AT 33.3 Acetal 8.00 0.079 39.5
0.5 0.20 0.15
OD26/41-AT 41.3 Acetal 14.75 0.068 54.5
0.5 0.25 0.15
OD32/51-AT 50.8 Acetal 28.50 0.044 85.0
0.5 0.25 0.20
OD36/57-AT 57.2 Acetal 42.50 0.027 125.0
0.5 0.25 0.20
OD8/13-NL 12.7 Nylon 0.17 2.560 2.8
0.5 0.10 0.05
OD12/19-NL 19.1 Nylon 0.57 1.240 9.6
0.5 0.20 0.10
OD16/25-NL 25.4 Nylon 1.13 1.110 15.9
0.5 0.20 0.10
OD21/33-NL 33.3 Nylon 2.05 0.460 34.0
0.5 0.20 0.15
OD26/41-NL 41.3 Nylon 3.65 0.330 45.3
0.5 0.25 0.15


Note 1 Hardware is alloy steel with black oxide finish. Parts MOST13 and MOST19 have one set screw. MOST25, MOST33 and MOST41 have two set screws 90° apart.
Note 2 Performance ratings are for guidance only. The user must determine suitability for a particular application.
Note 3 Couplings supplied with black anodized aluminum hubs.

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