Heavy Duty Mounted Bearing Insert UC309 45mmHeavy Duty Mounted Bearing Insert UC309 45mm x 100mm x 57mm Heavy Duty Mounted Bearing Insert UC309 Bearing, measures an inner diameter of 45mm, Inner diameter is 100mm, outer diameter is 57mm. UC309 Mounted Bearing Type:: Heavy Duty Mounted Bearing Insert Bearing Basic Load kN (Cr): 48. 9 KN Basic Load kN (Cor): 29. 5 KN Size: 45mm x 100mm x 57mm Quantity: 1 Bearing