Browning 767777 Pillow Block Bearing 1 Inch Id Cast Iron

Product Description

The BROWNING 767777 is a cast iron pillow block bearing designed to support rotating shafts in industrial and mechanical drive applications. With a 1-inch inside diameter and eccentric lock type, this unit provides secure shaft retention without the need for set screws. The bearing insert is manufactured from 52100 steel, a high-carbon chromium alloy known for fatigue resistance under radial and axial loading. The 767777 carries a static load capacity of 1,651 pounds and a dynamic load capacity of 2,801 pounds, making it suitable for moderate-to-heavy duty conveyor, fan, pump, and general power transmission installations. Millwrights, maintenance technicians, and mechanical contractors typically handle this type of installation.

This pillow block is intended for use in general industrial machinery, conveyor systems, agricultural equipment, and similar rotating equipment where a housed bearing unit is required on a flat mounting surface. The eccentric locking collar engages the shaft by rotating the collar in the direction of shaft rotation and then tightening the set screw, providing reliable shaft grip under load. The 4.125-inch distance between mounting hole centers and 1.3125-inch base-to-center height allow straightforward bolt-down installation on standard machine frames and bases.

Key Features

• Eccentric lock collar for positive shaft engagement on 1-inch diameter shafts
• 52100 steel bearing insert for high fatigue and wear resistance
• Cast iron housing for rigidity and durability in industrial environments
• 1,651-pound static load capacity and 2,801-pound dynamic load capacity
• 4.125-inch between mounting hole centers for standard frame compatibility
• 1.3125-inch base-to-center height for predictable shaft alignment

Compatibility

Designed as an OEM-style replacement or direct installation pillow block bearing for industrial machinery requiring a 1-inch shaft bore housed bearing unit with an eccentric locking collar.

Installation Notes

Installation is typically performed by a millwright or qualified maintenance technician. De-energize and lock out all power to the equipment before removing or installing any bearing unit. Align the pillow block to the shaft centerline before tightening mounting fasteners to avoid preloading the bearing. Engage the eccentric collar in the direction of shaft rotation and secure the set screw to the manufacturer-specified procedure; do not over-tighten the housing bolts before shaft alignment is confirmed.