ucp317 nskCM UCP317D1 Bearing UC317D1 Bearing Housing P317D1 Housing d 85 mm Bore diameter N1 45 mm Length of attachment bolt hole L 420 mm Overall length H 112 mm Height of spherical seat centre H3 235 mm Overall height J 320 mm Distance between attachment bolts N 33 mm Diameter of attachment bolt hole A 110 mm Base width A5 170 mm Width including end cover t 5 mm Clearance H1 40 mm Distance between bottoms of piloting grooves B4 0. 6 mm Width of inner ring B1