Oasis Machinery 28505 Heavy-Duty 1" Conveyor Roller Ball Transfer Bearings, Set of 6 Replaces Big Horn 19102 Material: Steel,Motion Load Rating: 140 lbs./ball | Total Size (Approx.) : 48 x 32 x 20mm / 1.9 x 1-3/16 x 0.8 (L*W*H) Ball supported movement around 360-Degree | Provides adequate non-linear support for warehouse carton rolling platform, roller tables and other applications 1 diameter ball bearing rolls inside a precisely formed steel body with 1/8 ball bearings acting as a metal base for smooth movement | Each assembly is 1-3/16 tall and can support up to 75lbs Hole Pattern: Two 7/32 Holes  2-1/4 apart | Excel where shop materials are pushed and turned in all directions For use bearing side up only, not for use as castor wheels | Suitable for small machinery, trolleys, furniture and rack, etc.