Triple-strand sprocket DRS with hub 08 B-3 1/2x5/16" 21 teeth material steel
| No. of Teeth | 21 |
|---|---|
| da [mm] | 90,5 |
| d [mm] | 85,21 |
| ND [mm] | 70 |
| B [mm] | 16 |
| L [mm] | 55 |
| Weight [kg] | 1,79 |
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Material: Steel C45, not hardened. Pre-bored. Sprockets marked with * from grey cast iron GG25. Sprockets marked with 1) are from steel St52 with welded hub.
General dimensions: B1 = 7 mm, B3 = 34,9 mm, c = 1,3 mm, r3 = 13 mm.
Other dimensions: See the table.