Browning 766781 2-bolt Flange Bearing 3/4 Inch Id

Product Description

The BROWNING 766781 is a 2-bolt flange bearing unit designed for light-to-medium duty shaft support applications in industrial and mechanical systems. It carries a 3/4 inch bore and uses a set screw locking mechanism to secure the shaft in position. The stamped steel housing keeps overall weight low at 0.6 pounds while maintaining a static load capacity of 1,444 pounds and a dynamic load capacity of 2,611 pounds. The bearing insert is manufactured from 52100 steel, a high-carbon chromium alloy commonly specified for rolling element bearings where hardness and fatigue resistance matter. Millwrights, maintenance technicians, and mechanical contractors install this unit in conveyor frames, fan assemblies, and general shaft-mounting applications.

This flange unit is suited for residential and light commercial mechanical equipment as well as general industrial machinery where a standard 2-bolt mounting pattern is required. The overall length of 3-9/16 inches and overall height of 2-5/8 inches keep the footprint compact for tight mounting locations. The 2-13/16 inch center-to-center distance between mounting holes aligns with standard bolt patterns across a wide range of equipment frames. The 5/16 inch bolt size and 1-5/16 inch base-to-center height allow direct bolt-down installation on flat mounting surfaces without additional spacers in most standard applications.

Key Features

• 3/4 inch bore with set screw locking for positive shaft retention
• 52100 steel bearing insert for hardness and rolling fatigue resistance
• Static load capacity of 1,444 pounds and dynamic load capacity of 2,611 pounds
• Stamped steel housing for reduced weight at 0.6 pounds
• 2-bolt mounting pattern with 2-13/16 inch hole center spacing
• Compact overall length of 3-9/16 inches and height of 2-5/8 inches

Compatibility

Designed as an OEM-style replacement or direct-fit 2-bolt flange bearing for mechanical systems requiring a 3/4 inch bore shaft mount with a standard 2-bolt stamped steel housing.

Installation Notes

Installation is typically performed by millwrights or maintenance mechanics. Shut down and lock out all power to rotating equipment before removing the existing bearing or mounting the new unit. Set screws should be tightened to secure shaft position after alignment is confirmed; do not overtighten to the point of shaft deformation. Verify mounting surface flatness before torquing bolts to avoid housing distortion that can reduce bearing service life.