Single Row Ball Bearing; 30MM Bore; 72MM Outside Diameter; 19MM Outer Race Width; 2 Seals; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; C3-Loose Internal Clearance; Steel Cage

Bracket

Roller Chain Sprocket; 50 Chain; 20 Teeth; 1 Row of Teeth; No Hardened Teeth; 4.321" Outside Diameter; 3.995" Pitch Diameter; B-Hub One Side; Bushed Mount; SDS Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material