875 in, Bearing Material Aluminum Alloy, Mounting Bolt Size 1/4 In.Twin Roller Pillow Block, Center Height 1.5 in, For Shaft Type Round, System of Measurement Inch, Carriage Type Twin, Mounting Hole Diameter 0.
8 mm, For Use With FrelonGOLD(R) Lined Bearings and Linear Ball Bearings, Shaft Drilling Undrilled, System of Measurement Metric, Product Type Linear Shaft, Surface Roughness 8-12 RMS, Minimum Hardness Depth 2.03 mm, Shaft Diameter 30 mm, Shaft Diameter Tolerance +/-0.