Browning 765810 Pillow Block Bearing 1-1/4 in Air Handling

Product Description

The BROWNING 765810 is a cast iron pillow block bearing designed for air handling applications in HVAC and mechanical systems. It features a 1-1/4 inch inside diameter bore with a set screw locking mechanism to secure the shaft. The bearing insert is made from 52100 steel, a high-carbon chromium alloy commonly used for rolling element bearings. With a static load capacity of 3,493 pounds and a dynamic load capacity of 5,782 pounds, this unit is built for sustained radial loading in fan and blower assemblies. HVAC technicians and mechanical contractors install this bearing as part of belt-driven air handler and fan coil shaft support configurations.

This pillow block is suited for residential and light commercial air handling equipment where shaft support and alignment are critical to fan performance. Typical installations include belt-drive blower assemblies, centrifugal fan shafts, and similar rotating equipment inside air handlers and rooftop units. The 5-inch distance between mounting hole centers and the 1-7/8 inch base-to-center height make it compatible with standard mounting plates and fan decks commonly found in these systems. The overall assembly measures 6-3/4 inches in overall length and 3-11/16 inches in overall height.

Key Features

• 1-1/4 inch inside diameter bore for standard shaft sizing in blower and fan applications
• Set screw locking mechanism secures the shaft without requiring a keyway
• 52100 steel bearing insert provides high load capacity and wear resistance
• Cast iron housing for durability in commercial and light industrial environments
• 3,493 pound static load capacity and 5,782 pound dynamic load capacity
• 5-inch mounting hole center distance simplifies drop-in replacement on standard fan decks

Compatibility

Designed as an OEM-style replacement pillow block bearing for air handling and HVAC fan shaft applications requiring a 1-1/4 inch bore with set screw locking and cast iron housing construction.

Installation Notes

Installation is typically performed by a licensed HVAC technician or millwright. Disconnect and lock out all electrical power to the air handler before servicing any rotating components. Ensure the mounting surface is flat and the bearing housing is torqued evenly to prevent housing distortion. Verify shaft diameter and alignment before tightening set screws, and re-check alignment after the first operational run.