Clutch bearing BBC clutch brake blade insertion for lawn mowers lawn mowers lawn mowers models ALPINA YAMAHA HONDA (one piece) Inner diameter: 22 mm Outer diameter: 44 mm Height: 12 mm HONDA N.B. the bearing in question is the one inserted in the BBC mechanical clutch used in professional machines for inserting the cutting blade Code 100351 Reference original code 91103-VA4-003