0.1875 in

0.500 in (12.7 mm)

0.222 in

+0.001 in / -0.000 in

0.222 in

0.625 in (15.9 mm)

+0.0000 in / -0.0005 in

M3

1 ea

Alloy Steel

Black Oxide

0.92 Nm

1.5 mm

Torque ratings vary with insert selection

0.5°

0.004 in (0.10 mm)

0.050 in (1.27 mm)

0.004 in (0.10 mm)

0.0001 lb-in²

4,500 RPM

OD8/13-AT, OD8/13-NL, OD8/13-PEK

Yes

Yes

Yes

634529066386

USA

2024-T351 Aluminum Bar

Black Anodized

Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black Anodize

Ruland Manufacturing

Acetal Disk -10°F to 150°F (-23°C to 65°)
Nylon Disk -10°F to 130°F (-23°C to 54°C)
PEEK Disk -10°F to 300°F (-23°C to 148°C)

0.004200

8483.60.8000

31163015

"Now available in stainless steel!"

"Performance ratings are for guidance only. The user must determine suitability for a particular application."

"Torque ratings for the couplings are based on the physical limitations/failure point of the torque disks. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the disks. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the rated torque of the disks. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance."

WARNING This product can expose you to the chemical Ethylene Thiourea, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

1. Align the bores of the OST8-3-A oldham coupling hubs on the shafts that are to be joined and determine if the misalignment parameters are within the limits of the coupling. (Angular Misalignment: 0.5° Parallel Misalignment: 0.004 in (0.10 mm), Axial Motion: 0.002 in (0.05 mm))
2. Rotate the hubs on the shaft so the drive tenons are located 90° from each other.
3. Place a torque disk so one groove fits over the drive tenons of a hub and center the disk by hand.
4. Insert a shim with the thickness of the coupling's axial motion rating into the groove of the torque disk.
5. Slide the tenons of the second hub into the mating groove in the disk until it touches the shim stock.
6. Fully tighten the M3 screw(s) on each hub to the recommended seating torque of 0.92 Nm using a 1.5 mm hex torque wrench.
7. Remove the shim stock to leave a small gap between the top of the drive tenons and the torque disk to allow for axial movement.

0.500 in (12.7 mm)

6 in-lb (0.68 Nm)

45 in-lb (5.085 Nm)

0.5°

0.004 in (0.10 mm)

0.050 in (1.27 mm)

0.004 in (0.10 mm)

7.4 lb-in/Deg (0.83 Nm/Deg)

0.00004 lb-in² (1.054 X 10^-8 kg-m²)

4,500 RPM

Yes

Yes

634529216170

USA

PEEK

Plain

Ruland Manufacturing

-10°F to 300°F (-23°C to 148°C)

0.001000

8483.60.8000

31163015

Performance ratings are for guidance only. The user must determine suitability for a particular application.

Torque ratings for the couplings are based on the physical limitations/failure point of the torque disks. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the disks. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the rated torque of the disks. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.

This product does not require a warning.

1. Align the bores of the coupling on the shafts that are to be joined and determine if the misalignment parameters are within the limits of the coupling.(Angular Misialignment: 0.5 deg, Parallel Misalignment: 0.004 in (0.10 mm ), Axial Motion: 0.002 in (0.05 mm )
2. Rotate the hubs on the shaft so the drive tenons are located 90° from each other.
3. Place a torque disk so one groove fits over the drive tenons of a hub and center the disk by hand.
4. Insert a shim with the thickness of the coupling's axial motion rating into the groove of the torque disk.
5. Slide the tenons of the second hub into the mating groove in the disk until it touches the shim stock.
6. Fully tighten the screw(s) on each hub to the recommended seating torque using a hex wrench.
7. Remove the shim stock to leave a small gap between the top of the drive tenons and the torque disk to allow for axial movement.

3/2.5D mm

2.50 mm

+.002”/-.000”

0.500 in (12.7 mm)

0.222 in

+0.001 in / -0.000 in

0.222 in

0.625 in (15.9 mm)

+0.000 mm / -0.013 mm

M3

1 ea

Alloy Steel

Black Oxide

0.92 Nm

1.5 mm

Torque ratings vary with insert selection

0.5°

0.004 in (0.10 mm)

0.050 in (1.27 mm)

0.004 in (0.10 mm)

0.275 x 10^-7 kg-m²

4,500 RPM

OD8/13-AT, OD8/13-NL, OD8/13-PEK

Yes

Yes

Yes

65432942064

USA

2024-T351 Aluminum Bar

Black Anodized

Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black Anodize

Ruland Manufacturing

Acetal Disk -10°F to 150°F (-23°C to 65°)
Nylon Disk -10°F to 130°F (-23°C to 54°C)
PEEK Disk -10°F to 300°F (-23°C to 148°C)

0.004600

8483.60.8000

31163015

"Performance ratings are for guidance only. The user must determine suitability for a particular application."

"Torque ratings for the couplings are based on the physical limitations/failure point of the torque disks. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the disks. In some cases` especially when the smallest standard bores are used or where shafts are undersized` slippage on the shaft is possible below the rated torque of the disks. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance."