Browning 767643 2-bolt Flange Bearing 1-3/16 in Cast Iron

Product Description

The BROWNING 767643 is a 2-bolt flange bearing unit designed for shaft support in industrial and mechanical power transmission applications. It carries a 1-3/16 inch bore, an overall length of 5-9/16 inches, and an overall height of 3-1/8 inches. The cast iron housing pairs with a 52100 steel insert for durability under load. Static load capacity is 2,567 pounds and dynamic load capacity is 4,381 pounds. The eccentric lock collar provides secure shaft retention without requiring a machined shaft shoulder. Licensed HVAC, mechanical, and millwright trades routinely specify this style of flange unit for fan shafts, conveyor drives, and similar rotating equipment.

This flange bearing is suited for light to medium industrial installations where a 2-bolt mounting pattern is specified. Typical applications include air handler fan shafts, belt-driven blower assemblies, and general conveyor or drive shaft support. The 4-19/32 inch distance between mounting hole centers and 7/16 inch bolt size align with standard mounting plates and fabricated frames used in HVAC and industrial settings. Package quantity is 1 unit.

Key Features

• 1-3/16 inch bore fits standard shaft sizes common in blower and fan assemblies
• Cast iron housing resists deformation under sustained radial load
• 52100 steel insert for high-cycle fatigue resistance
• Eccentric lock collar secures shaft without keyway or set screw groove requirement
• 2,567 pound static and 4,381 pound dynamic load ratings support demanding drive applications
• 2-bolt mounting pattern simplifies installation on standard equipment frames

Compatibility

Designed as an OEM-style replacement or direct-fit 2-bolt flange bearing for industrial and HVAC power transmission shafts requiring a 1-3/16 inch bore with eccentric lock retention.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out all power to the drive system before removing or installing any bearing unit. Ensure the mounting surface is flat and clean, and that the shaft is within the specified tolerance for the 1-3/16 inch bore before tightening the eccentric collar. Refer to ANSI and equipment manufacturer guidelines for proper fastener torque ranges appropriate to 7/16 inch bolt hardware.