BB Series
Commercial Ball Bearing Pulleys
| Ralmark Number | BB-138 | BB-123 | BB-124 | BB-131 | BB-128 | BB-120 | BB-114 | BB-108 |
|---|---|---|---|---|---|---|---|---|
| Cable Diameter | 3/32" | 3/32" | 3/32" | 3/16" | 3/16" | 3/16" | 3/16" | 3/16" |
| Bearing Numbers | KP3AK | KP3AK | KP3K | KP4K | KP4K | KP4K | KP4K | KP4K |
| Bore Size (ref) +0.0000 -0.0005 | 0.1900 | 0.1900 | 0.1900 | .2500 | .2500 | .2500 | .2500 | .2500 |
| Hub Width (ref) +0.000 -0.005 | .297 | .297 | .297 | .484 | .484 | .484 | .484 | .484 |