Finer Power torque Limiter Friction Disc RTL89-FRIC/DISC
Available
These are friction discs for the RTL50, RTL65, RTL89, RTL127 and RTL178 torque limiters. A torque limiter slips on friction surfaces held together by spring force, and the friction discs are the surfaces that wear in service.
Where this product is used
- Replacing worn friction discs in RTL series torque limiters
- Restoring the slip torque of a limiter that has worn or glazed
- Servicing torque limiters on conveyors, mixers and feeders
- Keeping a spare friction disc for critical drives
Features
- Friction disc for RTL50 to RTL178 torque limiters
- Sold singly, with one part number for each of the 5 sizes
- Suits both models of each size (-1 and -2)
- Service part for installed torque limiters
Key specifications
| Specification | Detail |
|---|---|
| Component | Torque limiter friction disc |
| Suits | RTL50, RTL65, RTL89, RTL127 and RTL178 torque limiters |
| Sold as | Single friction disc |
| Sizes | 5 part numbers, one per limiter size |
| Centre member bore | 30 to 105mm |
Sizes available
| Part number | Suits | Centre member bore (mm) | Slip torque of suited models (kgf-m) |
|---|---|---|---|
| RTL50-FRIC/DISC | RTL50 | 30 | 0.3 to 2.0 |
| RTL65-FRIC/DISC | RTL65 | 41 | 0.7 to 5.5 |
| RTL89-FRIC/DISC | RTL89 | 49 | 2.0 to 15.2 |
| RTL127-FRIC/DISC | RTL127 | 74 | 4.8 to 42.9 |
| RTL178-FRIC/DISC | RTL178 | 105 | 11.8 to 111 |
Choosing the right option
The complete limiters are under Torque Limiter, RTL50 to RTL178, 8 to 64mm Bore, 0.3 to 111 kgf-m. Choose the friction disc by the limiter size: RTL50, RTL65, RTL89, RTL127 or RTL178. The centre member is the sprocket, pulley or plate, supplied by you, that runs between the friction facings.
Replace the friction discs when the limiter does not hold its set torque or slips unevenly. Check the centre member rubbing surface at the same time: it should be flat, square with the bore and free of rust, scale and oil, or the slip torque will be erratic. The bronze bush that carries the centre member is under Torque Limiter Bronze Bush, 30 to 105mm OD, Suits RTL50 to RTL178 and the spring under Torque Limiter Spring, Suits RTL50 to RTL178.
Friction discs are sold singly, so order the number your limiter needs.
| Option | Part number | SKU |
|---|---|---|
| 30 | RTL50-FRIC/DISC | A0150486 |
| 41 | RTL65-FRIC/DISC | A0150487 |
| 49 | RTL89-FRIC/DISC | A0150488 |
| 74 | RTL127-FRIC/DISC | A0150489 |
| 105 | RTL178-FRIC/DISC | A0150490 |
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Torque Limiter Friction Disc, Suits RTL50 to RTL178: 49
SKU: A0150488 | Model: RTL89-FRIC/DISC
Finer Power RTL89-FRIC/DISC: torque Limiter Friction Disc, bore of centre member (mm) 49. Component: Torque limiter friction disc. Sold As: Single friction disc.

