Insert Bearing, Ball Material Alloy Steel, Bearing Industry Number ER-23, Bearing Insert Type Radial/Deep Groove Ball, Bearing Insert Shape Cylindrical, Bore Diameter 1 7/16 in, Cage Material Brass, Closure Double Sealed, For Environment Highly Dusty and Dirty, Inner Ring Outside Diameter 1.859 in, Lubricant Material NLGI #2 Equivalent, Maximum Temperature 220 Degrees F, Minimum Temperature -20 Degrees F, Outer Ring Width 0.938 in, Outside Diameter 2 53/64 in, Ring Material Alloy Steel