Ruland Set Screw Style Oldham Couplings


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Zero Backlash Couplings

MOSC - Metric Set Screw Oldham Coupling w/ keyways


Large parallel misalignment Electrically isolating	Replaceable disk Balanced design

Ordering Information

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

PART NUMBER	Keyway (mm)	BORE B (mm)	OD (mm)	HUB LENGTH LH (mm)	LENGTH L (mm)	SHAFT PENETRATION (mm)	SET SCREW
MOST25-10-A	3	10	25.4	9.9	28.6	9.9	M4
MOST25-12-A	4	12	25.4	9.9	28.6	9.9	M4
MOST33-10-A	3	10	33.3	15.0	47.6	15.0	M4
MOST33-12-A	4	12
MOST33-14-A	5	14
MOST33-16-A	5	16
MOST41-10-A	3	10	41.3	18.0	50.8	18.0	M5
MOST41-12-A	4	12
MOST41-14-A	5	14
MOST41-16-A	5	16
MOST41-20-A	6	20

DISCS

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

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.

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