Chain sprockets 92 Chain sprockets 805-820 805 820 Split sprocket with guides, machined Split sprocket with guides, machined Anelli Inox / SS Guide-rings / Edelstahl Bordscheibe Anelli Inox / SS Guide-rings / Edelstahl Bordscheibe Part Article-Nr. Z- Bore in PD in-mm OD in-mm S in-mm Ø screw in-mm 523 52301GY 21 1 5.09/129,3 5.08/129,0 2.67/67,8 4.09/104,0 523 52302GY 1¹⁄₄ 523 52303GY 1⁷⁄₁₆ 523 52304GY 1¹⁄₂ 524 52401GY 23 1 5.56/141,2 5.60/142,0 2.90/73,8 4.57/116,0 524 52402GY 1¹⁄₄ 524 52403GY 1⁷⁄₁₆ 524 52404GY 1¹⁄₂ 525 52501GY 25 1 6.03/153,2 6.06/154,0 3.14/79,8 5.04/128,0 525 52502GY 1¹⁄₄ 525 52503GY 1⁷⁄₁₆ 525 52504GY 1¹⁄₂ Material: Polyamide Guides & Screws: Stainless steel Nuts: Zinc plated steel Part Article-Nr. Z- Bore in PD in-mm OD in-mm S in-mm Ø screw in-mm 537 53701GY 21 1 5.09/129,3 5.08/129,0 2.67/67,8 4.09/104,0 537 53702GY 1¹⁄₄ 537 53703GY 1⁷⁄₁₆ 537 53704GY 1¹⁄₂ 538 53801GY 23 1 5.56/141,2 5.60/142,0 2.90/73,8 4.57/116,0 538 53802GY 1¹⁄₄ 538 53803GY 1⁷⁄₁₆ 538 53804GY 1¹⁄₂ 539 53901GY 25 1 6.03/153,2 6.06/154,0 3.14/79,8 5.04/128,0 539 53902GY 1¹⁄₄ 539 53903GY 1⁷⁄₁₆ 539 53904GY 1¹⁄₂ B S PD Fixing screw OD 1.86/47.3 0.59/15 1.63/41.3 PD Fixing screw OD 3.38/86 3.15/80 B S