INSIZE Roller Bearing V-Block Set These precision made V-Block Sets are designed to hold round material, and are suitable to hold heavy workpieces. With a Runout accuracy of 197µin and Parallelism of bearings to bottom at 472µin, your workpieces will not get damaged due to mis-aligned bearings. Features include... Overall Size: 5.9" x 3.1" x 3.9" Load Capacity: 2200 Lb Product Dimensions... Diameter of Bearings ( D ): 1.85" Range of Shafts ( d ): 0.20" - 2.17" W1: 1.57" W2: 2.36" h1: 0.87" h2: 3.35" h3: 0.47" L1: 3.94" S: 1.97"