4-Bolt Flange Bearing Ball Bearing Insert Type 1 in Bore Dia Bolt Hole Center-to-Center 2 3/4 in Cast Iron Bearing Housing Material Type Set Screw Shaft Locking Type 52100 Chrome Steel Bearing Insert Material Standard Duty Series Bolt Size 3/8 in Overall Height 1 13/32 in Overall Width 3 3/4 in Overall Length 3 3/4 in Bearing Lubrication Chevron SRI-2 or NLGI #2 Equivalent Dynamic Load Capacity 3 146 lb Static Load Capacity 1 771 lb Temp Range -20 Degrees to 200 Degrees F