Browning 767778 4-bolt Flange Bearing 1 in Id Cast Iron

Product Description

The BROWNING 767778 is a 4-bolt flange bearing unit from the VF4E 100 series, designed for industrial and mechanical power-transmission applications. The unit features a 1-inch inside diameter bore with an eccentric lock collar for secure shaft retention. The cast iron housing measures 3.75 inches overall length by 3.75 inches overall height and carries a static load capacity of 1,651 pounds and a dynamic load capacity of 2,801 pounds. The 52100 steel ball bearing insert requires periodic lubrication. This unit is installed by maintenance mechanics and millwrights in conveyor, fan, pump, and general rotating-equipment assemblies.

The 767778 flange unit is suited for light industrial and commercial equipment where a rigid, bolted-mount bearing housing is needed. The 4-bolt mounting pattern with 2.75-inch center-to-center bolt spacing provides a stable footprint on equipment frames and structural steel. Typical applications include HVAC fan shafts, blower assemblies, conveyor drive systems, and agricultural or industrial machinery requiring a reliable, serviceable bearing mount. The unit is rated to a maximum of 3,500 RPM, making it appropriate for moderate-speed drive systems.

Key Features

• 1-inch bore ID with eccentric lock collar for positive shaft retention
• Cast iron housing provides rigid, durable support under sustained load
• 52100 steel ball bearing insert for dependable radial load performance
• Static load capacity of 1,651 pounds and dynamic load capacity of 2,801 pounds
• 4-bolt flange mount with 2.75-inch mounting hole center-to-center spacing
• Maximum rated speed of 3,500 RPM suitable for moderate-speed shaft applications

Compatibility

Designed as an OEM-style replacement or direct-fit bearing unit for shaft assemblies requiring a 1-inch bore, 4-bolt flange housing within the VF4E 100 series form factor.

Installation Notes

Installation is typically performed by a qualified millwright or maintenance mechanic. Shut down and lock out all power to the equipment before removing or installing the bearing unit per LOTO procedures. Use the correct 7/16-inch bolt size when fastening to the mounting surface and torque fasteners to the equipment manufacturer's specifications. Lubrication is required; verify grease type and interval with the equipment OEM or BROWNING documentation before placing the unit in service.