Special Standard (ISO) Z < 20 - Ø < 30
Special Standard sprockets have induction hardened teeth (45 ÷ 55 HRC) and keyway located on the centerline of tooth.
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- 06B (3/8"X7/32") (77)
- 08B (1/2"X5/16") (87)
- 10B (5/8"X3/8") (70)
- 12B (3/4"X7/16") (46)
- 16B (1"X17,02mm) (18)