SYNERGY 160-3-NO107 - RENOLD 2 Inch Pitch Synergy Link NJ2207-EC-ML/C3 They have a 30° contact

They have a 30° contact angle which can operate at much higher speeds than bearings with a 40° contact angle

This 2312 bearing is a double row

623 04 2rs1 Deep Groove Ball Bearings 20mm - Bore Size Rubber Seals on Both Sides of Bearing Normal Radial Internal Clearance

This BSR2060SL is an Anti Creep Crossed Roller Linear Way Unit with High Rigidity and High Accuracy

SYNERGY 160-3-NO107 - RENOLD 2 Inch Pitch Synergy Link NJ2207-EC-ML/C3 They have a 30° contactFor use with all sizes and types of chain where optimum security is desired. The link is supplied with bearing pins riveted into one outer plate. The other outer plate is an interference fit on the bearing pins, the ends of which should be riveted over after the plate is fitted. Press fit connecting links should only be used once; new links must be used to replace dismantled links. (See Riveting Chain Endless' for full instructions).