These sprag freewheels with integrated ball bearings in premium quality can be used as indexing freewheels, backstops or overrunning clutches. They are installed in housings provided by the customer. Design BB: Standard freewheels without keyways. Sealed on the sprag side with a z-washer. On the bearing side, the freewheel closes with the bearing cage. The BB design has the same dimensions as ball bearing series 62. Design BB-2GD: As design BB, but 5mm wider and with lip seal on both sides against dust and splash water. Lubrication: The freewheels are filled with grease for normal operating conditions and are maintenance-free. Do not use greases or lubricants with EP additives. Temperature range: -30°C to + 100°C. Other versions on request. 1) The keyway depth t2 is 0,5mm shallower than specified in DIN 6885-3. When using a DIN parallel keyway t1 must be manufactured correspondingly deeper than specified in the DIN standard. 3) Contrary to the above specifications, the keyway is according to DIN 6885-1.
| d (mm) | 25 |
|---|---|
| D (mm) | 52 |
| D1 (mm) | 47,05 |
| B (mm) | 20 |
| r (mm) | 1,0 |
| b2JS10 (mm) | 8 |
| t1 (mm) | 3,6 1) |
| t2 (mm) | 1,5 1) |
| Passfeder Innenring b x h x l (mm) | 8 x 5 x 20 |
| Drehmoment (Nm) | 78 |
| Schleppmoment (Nm) | 0,055 |
| max. Überholdrehzahl Innenring (min-1) | 2500 |
| max. Überholdrehzahl Außenring (min-1) | 1400 |
| Tragzahlen radial dyn. C (N) | 10700 |
| Tragzahlen radial stat. C0 (N) | 6300 |
| Gewicht (g) | 200 |
