Browning 767649 Pillow Block Bearing 1-3/16 in Cast Iron

Product Description

The BROWNING 767649 is a two-bolt pillow block bearing designed for shaft support in industrial and mechanical drive applications. It accepts a 1-3/16 inch diameter shaft and uses an eccentric locking collar to secure the bearing to the shaft without keyways. The cast iron housing measures 6-3/16 inches overall length and 3-9/32 inches overall height. The insert is manufactured from 52100 steel, a bearing-grade alloy selected for hardness and fatigue resistance. Static load capacity is 2,567 pounds and dynamic load capacity is 4,381 pounds. Licensed HVAC, mechanical, and millwright tradespeople install this type of bearing on fan shafts, blower assemblies, and conveyor drives.

This pillow block is suited for light to moderate industrial and commercial mechanical systems where reliable shaft support is required. Typical applications include belt-driven HVAC supply and exhaust fans, pump shafts, and rotating equipment found in commercial mechanical rooms. The two-bolt base pattern with 4-5/8 inch mounting hole center spacing simplifies drop-in replacement on existing equipment frames. The 1-11/16 inch base-to-center height is a commonly specified dimension in fan and blower assemblies requiring precise shaft alignment.

Key Features

• 1-3/16 inch bore accommodates standard shaft sizes used in commercial HVAC and industrial fan assemblies
• Eccentric locking collar secures to shaft without requiring a keyed shaft or set screws through the insert
• Cast iron housing provides rigidity and vibration damping in belt-drive and direct-drive applications
• 52100 steel insert for high hardness and extended fatigue life under cyclic radial loads
• 2,567 pound static and 4,381 pound dynamic load ratings support moderate radial loads typical of fan and blower service
• Two-bolt mounting pattern with 4-5/8 inch hole center spacing fits common equipment base configurations

Compatibility

Designed as an OEM-style replacement pillow block bearing for mechanical drive and HVAC fan shaft applications requiring a 1-3/16 inch bore, 4-5/8 inch bolt pattern, and eccentric lock collar retention. Verify shaft diameter, bolt spacing, and base-to-center height against existing equipment specifications before ordering.

Installation Notes

Installation is typically performed by a licensed millwright, mechanical contractor, or HVAC technician. Shut down and lock out all rotating equipment and de-energize associated electrical circuits before removing or installing any bearing. Clean the shaft and inspect for wear before seating the new bearing. Torque mounting fasteners to equipment manufacturer specifications and confirm shaft alignment before returning the system to service.