Chain sprockets 78 Chain sprockets 815 B 1.62/41.3 OD PD S B 1.62/41.3 OD PD S Material: Polyamide Screws: Stainless steel Nuts: Zinc plated steel Split idler sprocket, machined Part Article-Nr. Z- Bore in PD in-mm OD in-mm S in-mm 501 50150 17 0.71* 4.15/105,5 4.09/103,9 2.20/55,9 501 50151Y 1 501 50152Y 1¹⁄₄ 501 50153Y 1⁷⁄₁₆ 501 50154Y 1¹⁄₂ 502 50250 19 0.71* 4.62/117,3 4.61/117,0 2.44/61,9 502 50251Y 1 502 50252Y 1¹⁄₄ 502 50253Y 1⁷⁄₁₆ 502 50254Y 1¹⁄₂ 503 50350 21 0.71* 5.09/129,3 5.08/129,0 2.67/67,8 503 50351Y 1 503 50352Y 1¹⁄₄ 503 50353Y 1⁷⁄₁₆ 503 50354Y 1¹⁄₂ 504 50450 23 0.71* 5.56/141,2 5.60/142,0 2.90/73,8 504 50451Y 1 504 50452Y 1¹⁄₄ 504 50453Y 1⁷⁄₁₆ 504 50454Y 1¹⁄₂ 505 50550 25 0.71* 6.03/153,2 6.06/154,0 3.14/79,8 505 50551Y 1 505 50552Y 1¹⁄₄ 505 50553Y 1⁷⁄₁₆ 505 50554Y 1¹⁄₂ 506 50650 27 0.71* 6.50/165,2 6.57/166,8 3.38/85,8 506 50651Y 1 506 50652Y 1¹⁄₄ 506 50653Y 1⁷⁄₁₆ 506 50654Y 1¹⁄₂ 507 50750 29 0.71* 6.98/177,2 7.03/178,5 3.61/91,8 507 50751Y 1 507 50752Y 1¹⁄₄ 507 50753Y 1⁷⁄₁₆ 507 50754Y 1¹⁄₂ *Plain Bore 815 Split drive sprocket, machined Used also for Series 881 M Part Article-Nr. Z- Bore in PD in-mm OD in-mm S in-mm 501 50101Y 17 1 4.15/105,5 4.09/103,9 2.20/55,9 501 50102Y 1¹⁄₄ 501 50103Y 1⁷⁄₁₆ 501 50104Y 1¹⁄₂ 502 50201Y 19 1 4.62/117,3 4.61/117,0 2.44/61,9 502 50202Y 1¹⁄₄ 502 50203Y 1⁷⁄₁₆ 502 50204Y 1¹⁄₂ 503 50301Y 21 1 5.09/129,3 5.08/129,0 2.67/67,8 503 50302Y 1¹⁄₄ 503 50303Y 1⁷⁄₁₆ 503 50304Y 1¹⁄₂ 504 50401Y 23 1 5.56/141,2 5.60/142,0 2.90/73,8 504 50402Y 1¹⁄₄ 504 50403Y 1⁷⁄₁₆ 504 50404Y 1¹⁄₂ 505 50501Y 25 1 6.03/153,2 6.06/154,0 3.14/79,8 505 50502Y 1¹⁄₄ 505 50503Y 1⁷⁄₁₆ 505 50504Y 1¹⁄₂ 506 50601Y 27 1 6.50/165,2 6.57/166,8 3.38/85,8 506 50602Y 1¹⁄₄ 506 50603Y 1⁷⁄₁₆ 506 50604Y 1¹⁄₂ 507 50701Y 29 1 6.98/177,2 7.03/178,5 3.61/91,8 507 50702Y 1¹⁄₄ 507 50703Y 1⁷⁄₁₆ 507 50704Y 1¹⁄₂