British Standard sprockets with integral bearings (INA) for use as an idler.
6B 21T Idler Sprocket INA Bearing (I3SR21I)
6B 21T Idler Sprocket INA Bearing (I3SR21I)
| Part No. | 7830-204 |
| Code | I3SR21I |
| No. teeth | 21 |
| Pitch | 3/8? x 7/32? |
| de | 68 |
| dp | 63.9 |
| A | 5.3 |
| D1* | 16 |
| F | 40 |
| B | 12 |
| H | 18.3 |
| Bearing | INA |
Every effort is taken to ensure the accuracy of the table data
Design variations and errors although rare may occur