2 needle bearings 57-1897 3/4" x 13/16" x 5/8" compatible with Triumph T100R T100S T100C 1964-1974

Compatibility: Compatible with Triumph T100R, T100S, T100C, and T100SS (1964-1974 models); please confirm dimensions are 3/4 x 13/16 x 5/8 inches; ideal for classic motorcycle repair and restoration.
OEM: 57-1897; Dimensions: 18.9 mm high x 20.7 mm outer diameter x 16 mm inner diameter.
Gearbox Starting and Performance: Needle rollers distribute load and reduce friction, resulting in smoother rotation when starting and shifting gears; helps maintain stable engagement and reduces wear on coupling parts in older engines.
Bearing Steel Construction and Maintenance: Hardened needle rollers and housing with precision-ground surfaces; open design allows for oil or grease lubrication for easy maintenance. Smooth metallic finish suitable for workshop or garage storage.
Installation and usage scenarios: Suitable for home garage repairs, professional workshops, and repair projects; measure old parts and holes to confirm fit before pressing or final mounting.