ucf308 d1 nskCM UCF308D1 Bearing UC308D1 Bearing Housing F308D1 Housing d 40 mm Bore diameter L 150 mm Overall length J 112 mm Distance between attachment bolts N 19 mm Diameter of attachment bolt hole A2 23 mm Flange width A1 17 mm Flange width A5 76 mm Width including end cover A0 56 mm Overall width B,B1,B2 52 mm Width of inner ring t 3 mm Clearance S 19 mm Distance from Opposite side face of locking device to raceway centre G M16 Bolt size Cr 40. 5 kN Basic