Ucp312 D1 NskUCP312D1 Bearing UC312D1 Bearing Housing P312D1 Housing d 60 mm Bore diameter N1 38 mm Length of attachment bolt hole L 330 mm Overall length H 85 mm Height of spherical seat centre J 250 mm Distance between attachment bolts N 25 mm Diameter of attachment bolt hole A 85 mm Base width H1 32 mm Distance between bottoms of piloting grooves B 71 mm Width of inner ring S 26 mm Distance from Opposite side face of locking device to raceway centre L1 95 mm