Chain sprockets 89 Chain sprockets 882 B 0.87/22 2.28/58 PD OD S 0.87/22 2.28/58 PD OD S B Split idler sprocket, molded Part Article-Nr. Z- Bore in PD in-mm OD in-mm S in-mm 555 55551Y 10 1 4.85/123,3 4.92/125,0 2.61/66,4 555 55552Y 1¹⁄₄ 555 55553Y 1⁷⁄₁₆ 555 55554Y 1¹⁄₂ 556 55651Y 12 1 5.79/147,2 5.87/149,0 3.09/78,4 556 55652Y 1¹⁄₄ 556 55653Y 1⁷⁄₁₆ 556 55654Y 1¹⁄₂ Material: Reinforced polyamide Screws: Stainless steel Nuts: Zinc plated steel 882 Split drive sprocket, molded Also suitable for Series 8257 Part Article-Nr. Z- Bore in PD in-mm OD in-mm S in-mm 555 55501Y 10 1 4.85/123,3 4.92/125,0 2.61/66,4 555 55502Y 1¹⁄₄ 555 55503Y 1⁷⁄₁₆ 555 55504Y 1¹⁄₂ 556 55601Y 12 1 5.79/147,2 5.87/149,0 3.09/78,4 556 55602Y 1¹⁄₄ 556 55603Y 1⁷⁄₁₆ 556 55604Y 1¹⁄₂