Insert Bearing, Ball Material Chrome Steel, Bearing Industry Number UC201-8, Bearing Insert Type Radial/Deep Groove Ball, Bearing Insert Shape Spherical, Bore Diameter 1/2 in, Closure Double Sealed, For Environment Chemical, Food and Beverage, Lubricant Material NLGI #2 Equivalent, Maximum Temperature 248 Degrees F, Minimum Temperature -40 Degrees F, Outer Ring Width 0.669 in, Outside Diameter 47 mm, Ring Material Chrome Steel, Rolling Element Material Chrome Steel, Rolling Element Rows 1