Browning 767905 4-bolt Flange Bearing 1-3/4 in Id Cast Iron

Product Description

The BROWNING 767905 is a 4-bolt flange bearing unit designed to support rotating shafts in industrial and mechanical drive applications. It accepts a 1-3/4 inch shaft bore and uses a set screw locking mechanism to secure the bearing to the shaft. The unit carries a static load capacity of 5,216 pounds and a dynamic load capacity of 7,889 pounds. The insert is manufactured from 52100 steel, a high-carbon chromium alloy widely used in bearing applications for its fatigue and wear resistance. The cast iron housing provides rigid, vibration-resistant support in demanding environments. Licensed mechanics, millwrights, and maintenance technicians are the primary installers of this component.

This flange bearing is suited for use in conveyor systems, agricultural equipment, industrial fans, pumps, and general power transmission machinery where a 4-bolt mounting pattern and a 1-3/4 inch bore are required. The 4-3/8 inch distance between mounting hole centers and the 5-5/8 inch overall length and height make it appropriate for medium-duty shaft support applications in both manufacturing and agricultural drive train installations. It is sold individually with a minimum order quantity of one unit.

Key Features

• 1-3/4 inch inside diameter fits standard mid-range shaft sizes common in industrial drive applications
• 5,216 pound static load capacity and 7,889 pound dynamic load capacity for medium-duty service
• Set screw locking mechanism secures bearing insert to shaft without keyway modification
• 52100 steel insert offers high hardness and fatigue resistance in bearing-grade applications
• Cast iron housing delivers rigid, vibration-dampening support under continuous load
• 4-bolt mounting pattern with 9/16 inch bolt size provides secure, stable installation on flat mounting surfaces

Compatibility

Designed as an OEM-style replacement or direct installation 4-bolt flange bearing for shafts with a 1-3/4 inch diameter in industrial power transmission and mechanical drive systems requiring a 4-bolt cast iron flange unit.

Installation Notes

Installation is typically performed by millwrights or qualified maintenance technicians. De-energize and lock out all drive equipment before mounting or removing the bearing unit per OSHA lockout/tagout procedures. Ensure the mounting surface is flat, clean, and free of debris before torquing the mounting fasteners. Set screws should be tightened in sequence using the appropriate hex key; do not over-tighten set screws, as this can damage the shaft or distort the inner race.