ucp308 d1 nskCM UCP308D1 Bearing UC308D1 Bearing Housing P308D1 Housing d 40 mm Bore diameter N1 27 mm Length of attachment bolt hole L 220 mm Overall length H 60 mm Height of spherical seat centre H3 125 mm Overall height J 170 mm Distance between attachment bolts N 17 mm Diameter of attachment bolt hole A 60 mm Base width A5 105 mm Width including end cover t 3 mm Clearance H1 22 mm Distance between bottoms of piloting grooves B 52 mm Width of inner ring S 19 mm