Browning 767657 Pillow Block Bearing 1.5 in Cast Iron

Product Description

The BROWNING 767657 is a cast iron pillow block bearing designed for industrial and mechanical power-transmission applications. It accepts a 1.5-inch inner diameter shaft and provides a static load capacity of 4,467 pounds and a dynamic load capacity of 7,340 pounds. The bearing insert is manufactured from 52100 steel and uses an eccentric lock collar for shaft retention. At 5.02 pounds and an overall height of 4 inches, this unit is suited for moderate-to-heavy duty rotating equipment where a rigid, two-bolt mounting base is required. Licensed HVAC, mechanical, and millwright trades commonly specify this style of bearing in blower, fan, and conveyor drive assemblies.

This pillow block is used in light-to-medium industrial settings where a mounted bearing must support a 1.5-inch shaft in a horizontal or slightly inclined orientation. Typical installations include belt-driven fan arrays, blower shafts, and pump drive trains found in commercial HVAC equipment and industrial process machinery. The two-bolt base pattern with 5.375-inch center-to-center spacing suits standard fabricated steel and cast mounting plates. The 2-inch base-to-center height provides clearance for standard shaft alignment in most equipment frames.

Key Features

• 1.5-inch bore accommodates standard shaft sizes common in fan and blower drive trains
• Static load capacity of 4,467 pounds and dynamic load capacity of 7,340 pounds
• 52100 steel bearing insert for hardness and wear resistance under continuous rotation
• Eccentric lock collar provides positive shaft retention without set screws into the shaft surface
• Cast iron housing resists deformation under sustained radial and thrust loading
• Two-bolt mounting with 5.375-inch hole-center spacing for straightforward base installation

Compatibility

Designed as an OEM-style replacement or new-installation pillow block bearing for 1.5-inch diameter shafts in belt-driven fan, blower, and light industrial conveyor applications requiring a two-bolt cast iron mount.

Installation Notes

Installation should be performed by a qualified millwright, mechanical contractor, or HVAC technician familiar with rotating equipment. Disconnect and lock out all power to the drive system before removing or installing any bearing assembly. Ensure the mounting surface is flat and the shaft is properly aligned before tightening mounting bolts to avoid preloading the bearing housing. Inspect shaft diameter and finish before installing the eccentric collar to confirm proper fit and lock engagement.