80 1-NO30 - RENOLD 1 Inch Pitch Premier Standard Link C53 Protorque Bearing This 6015 2RS1 SKF bearing

This 6015 2RS1 SKF bearing is a Sealed Deep Groove Radial Ball Bearing with a standard radial internal clearance The bearing's dimensions are 75x115x20

This S6203 FAG bearing is a Open Type Deep Groove Radial Ball Bearing with a standard radial internal clearance The bearing's dimensions are 17x40x12

This QJ217-MPA bearing is a a four point contact bearings with a machined brass cage with the outer ring centred and a normal internal clearance

63 16 M Medium Series 80mm - Bore Size Solid Brass Cage Normal Radial Internal Clearance

This NF209ET bearing is a single row cylindrical roller bearing

80 1-NO30 - RENOLD 1 Inch Pitch Premier Standard Link C53 Protorque Bearing This 6015 2RS1 SKF bearingDouble cranked links are available for most sizes and types of chain. The unit consists of an inner link (No. 4), with cranked links retained permanently in position by a riveted bearing pin. Screw operated extractors break chain by forcing the Renold end softened bearing pins out of the outer link plates. For other brands of chain, the rivet swell must first be ground away.