Browning® mounted ball bearings feature multiple housing styles, materials and configurations, an extended inner race insert bearing with ball riding nylon retainer. The insert features a rivet to prevent outer ring rotation and is available with setscrew, eccentric or BOA concentric locking collar. The contact seal with black oxide treated flinger provides a good balance between contaminant resistance, grease loss and friction. Browning® Pillow Block Ball Bearing Unit, Medium Duty High Base, Series: VPB 300, 1 in Bore, 4-3/16 to 5-1/16 in Bolt Center-to-Center Length, 1-3/4 in Base to Bore Centerline, 6-3/16 in Overall Length, 3-11/32 in Overall Height, Two-Bolt Base Mounting, Round Bore, 1-3/4 in Base Width, BOA Concentric Locking Device, Single Lip Contact with Flinger Seal, Non-Expansion (Fixed) Expansion, 4381 lb Dynamic/2567 lb Static Load, 200 to 250 °F, 4500 RPM Maximum, Cast Iron, Gray Painted