Bearing Unit, Bearing Insert Material Alloy Steel, Bearing Insert Type Radial Ball, Bore Diameter 1 in, Closure Double Sealed, Housing Material Rubber, Housing Width 7/8 in, Lubricant Material NLGI #2 Equivalent, Maximum Speed 6,350 RPM, Maximum Temperature 220 Degrees F, Minimum Temperature -20 Degrees C, Outside Diameter 2 17/32 in, Overall Width 1.375 in, Rolling Element Rows 1, Seal Type Contact, Shaft Locking Type Set Screws, System of Measurement Inch