Bearing, roller, gearbox layshaft for Norton Commando and Norton - AMC laydown gearboxes . Replacement roller bearing, SKF brand. Used by Nortons from approximately 1973 onwards as the extra torque of the 850cc engine could make short work of the ball bearing used previously. Original Part Number: 9668; B2/322; 040100; 067710 - Layshaft left hand bearing
