| Width | B | 130 | mm |
| Height | T | 100 | mm |
| Diameter | D | 50 | mm |
| length | L | 40 | mm |
| Width across Flat | W | 6 | mm |
| Mounting dimension | JB | 18 | mm |
| Upper tolerance | Tol A5 | +0,15 |
| Size thread fixing screws above | K5 | M8 | |
| Lower tolerance | Tol H2 | -0,15 | |
| Tolerance | ±0,2 |
| Manufacturer | Part Number |
|---|---|
| Dr-Tretter | WB55 050 |
| Rodriguez | WBAS 50 |
| minitec | WB 50 |
| Nadella | WB50 |
| Rodriguez | WBS 50 |
