Browning 767538 4-bolt Flange Bearing 1-3/16 in Cast Iron

Product Description

The BROWNING 767538 is a 4-bolt flange bearing unit designed for shaft support in industrial and mechanical drive applications. It accepts a 1-3/16 inch inside diameter shaft and features an eccentric lock collar for positive shaft retention without keyways. The cast iron housing measures 4-1/4 inches in overall length and 4-1/4 inches in overall height, with a 52100 steel insert that delivers a static load capacity of 2,567 pounds and a dynamic load capacity of 4,381 pounds. This unit weighs 3.14 pounds and is well suited for conveyor systems, fan shafts, pump mounts, and general power transmission equipment installed by maintenance mechanics and millwrights.

The 767538 fits into applications where a rigid, 4-bolt mounted flange bearing is required on light to moderate load rotating equipment. The 3-1/4 inch distance between mounting hole centers and 7/16 inch bolt size align with standard mounting patterns found on industrial frames and equipment bases. Typical installations include HVAC belt-drive fan assemblies, agricultural equipment, and general industrial machinery requiring dependable shaft support at moderate speeds.

Key Features

• 1-3/16 inch inside diameter accommodates standard fractional shafts
• Eccentric lock collar provides positive shaft retention without a keyway
• 52100 steel bearing insert rated for 2,567 pounds static and 4,381 pounds dynamic load
• Cast iron housing resists wear and handles moderate shock loads
• 4-bolt mounting pattern with 3-1/4 inch hole center spacing and 7/16 inch bolt size
• Compact 4-1/4 inch x 4-1/4 inch overall envelope fits tight mounting footprints

Compatibility

Designed as an OEM-style replacement or direct-fit 4-bolt flange bearing for industrial and mechanical drive applications requiring a 1-3/16 inch bore with eccentric lock retention in a cast iron housing.

Installation Notes

Installation is typically performed by millwrights or maintenance mechanics. Shut down and lock out all rotating equipment before removing or installing bearing units per LOTO procedures. Ensure the mounting surface is flat and the shaft is clean and free of burrs before seating the bearing. Tighten mounting bolts evenly and verify eccentric lock collar engagement before returning equipment to service.