Ruland OD8/13-AT Oldham Coupling Disk.
Ruland OD8/13-AT Oldham Coupling Disk, Black Acetal, Bore, 12.7mm OD.
| DIMENSIONS | |||
|---|---|---|---|
| Outer Diameter (OD) | 0.500 in (12.7 mm) | ||
| PERFORMANCE SPECIFICATIONS | |||
| Rated Torque | 6 in-lb (0.68 Nm) | Static Break Torque | 34 in-lb (3.9 Nm) |
| Angular Misalignment | 0.5° | Parallel Misalignment | 0.004 in (0.10 mm) |
| Max Parallel Misalignment | 0.050 in (1.27 mm) | Axial Motion | 0.004 in (0.10 mm) |
| Torsional Stiffness | 13.9 lb-in/Deg (1.57 Nm/Deg) | Moment of Inertia | 0.00004 lb-in2 (1.171 X 10-8 kg-m2) |
| Maximum Speed | 4,500 RPM | Full Bearing Support Required? | Yes |
| Zero-Backlash? | Yes | Mechanical Fuse? | Yes |
| ADDITIONAL INFORMATION | |||
| UPC | 634529059913 | Country of Origin | USA |
| Material Specification | Acetal | Finish Specification | Plain |
| Manufacturer | Ruland Manufacturing | Temperature | -10°F to 150°F (-23°C to 65°C) |
| Weight (lbs) | 0.001100 | Tariff Code | 8483.60.8000 |
| UNSPC | 31163015 | ||
Ruland OD8/13-AT Oldham Coupling Disk
Carefully made by Ruland in Marlborough, MA, Oldham couplings are comprised of two hubs pressed fit with either an acetal or nylon disk.
Oldham couplings disengage if the disc breaks, acting as a mechanical fuse.
Well-suited for handling large amounts of parallel misalignment.
Acetal Oldham coupling inserts are zero-backlash and electrically isolating. Maximum is 4,500 RPM. RoHS and Reach compliant.
Also called a Oldham coupling insert, disk, or disc.
Installation Instructions
- 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 )
- Rotate the hubs on the shaft so the drive tenons are located 90° from each other.
- Place a torque disk so one groove fits over the drive tenons of a hub and center the disk by hand.
- Insert a shim with the thickness of the coupling’s axial motion rating into the groove of the torque disk.
- Slide the tenons of the second hub into the mating groove in the disk until it touches the shim stock.
- Fully tighten the screw(s) on each hub to the recommended seating torque using a hex wrench.
- 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.



