TECHNICAL DATA SHEET > Ε Bushes are made out of cast iron except when mentioned otherwise. All bushes are keywayed. The keyway is made following norm. AFNOR E 22.175 (except when mentioned otherwise), thestrength must always be exercised on key sides never on top.. Օ For shaft diameter in inches, please ask us. > A bush VECOBLOC bush is defined by two figures (ex: 50.30)- the first one shows maximum possible diameter : (ex : 50 mm) - the second one shows the length of the bush : (ex : 30 mm) >