Roller Chain Sprocket; 1-1/4" Bore; 50 Chain; 20 Teeth; 1 Row of Teeth; No Hardened Teeth; 4.321" Outside Diameter; 3.995" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Angular Contact Ball Bearing; 20MM Bore; 47MM Outside Diameter; 20.6MM Width; 2 Metal Shields; No Flush Ground; Double Row of Balls; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; C3-Loose Internal Clearance; Steel Cage; 30 Degree; 1 (Single)

Spur Gear; 6" Pitch Diameter; 8 DP; 1-1/2" Face Width; Rough Bore; 48 Teeth; 20 Degree Pressure Angle; Minimum Plain Bore; 2-1/8" Max Bore; 3-1/2" Hub Diameter; Steel

Single Row Ball Bearing; 25MM Bore; 47MM Outside Diameter; 12MM Outer Race Width; 2 Seals; ABEC 1 | ISO P0; No Filling Slot; Yes Snap Ring; C3-Loose Internal Clearance; Steel Cage

Shaft Bushing; 1-1/8" Bore; 1-3/8" Outside Diameter; 1-1/16" Length Thru Bore; JA Bushing Series; Keyway; QD Bushing