Insert Bearing, Ball Material Alloy Steel, Bearing Industry Number 3-115, Bearing Insert Type Radial/Deep Groove Ball, Bearing Insert Shape Spherical, Bore Diameter 1 15/16 in, Cage Material Brass, Closure Double Sealed, For Environment Highly Dusty and Dirty, Inner Ring Outside Diameter 2.719 in, Lubricant Material NLGI #2 Equivalent, Maximum Temperature 220 Degrees F, Minimum Temperature -20 Degrees F, Outer Ring Width 1.188 in, Outside Diameter 3 59/64 in, Ring Material Alloy Steel