Double-strand sprocket ZRS with hub 20 B-2 1 1/4x3/4" 12 teeth material steel
| No. of Teeth | 12 |
|---|---|
| da [mm] | 137,20 |
| d [mm] | 122,67 |
| ND [mm] | 90 |
| B [mm] | 20 |
| L [mm] | 80 |
| Weight [kg] | 5,09 |
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Material: Steel C45, not hardened. Pre-bored.
Sprockets marked with * from grey cast iron GG25.
Sprockets marked with 1) made from St52 with welded in hub.
General dimensions: B1 = 18.2 mm, B2 = 54.6 mm, c = 3.5 mm, r3 = 32 mm. Other dimensions: See the table.