Browning 1078880 Type Q Sprocket Bushing 1.125 in Bore

Product Description

The BROWNING 1078880 is a Type Q split taper sprocket bushing designed for use with split taper sprockets and sheaves in power transmission drive systems. It features a 1.125-inch bore with a 0.25-inch keyway width and 0.125-inch keyway depth, allowing secure shaft engagement with a keyed connection. The bushing fits sprockets and sheaves with an outside diameter range of 2.766 to 2.875 inches. Weighing 4.25 pounds, it is built for durability in industrial and commercial mechanical drive applications. Licensed technicians and mechanical contractors install this bushing as part of chain drive or belt drive assemblies.

This Type Q bushing is suited for industrial power transmission systems where split taper bushings are the standard mounting method. The split taper design allows the bushing to be drawn tightly onto the shaft by tightening the hub bolts, creating a firm, concentric fit without the need for a press. It is commonly installed on conveyor drives, pump drives, fan drives, and similar rotating equipment in commercial and industrial settings.

Key Features

• Type Q split taper design for secure, concentric shaft mounting
• 1.125-inch bore with 0.25-inch keyway width and 0.125-inch keyway depth
• Compatible with split taper sprockets and sheaves in the 2.766 to 2.875-inch OD range
• Split taper construction allows installation and removal without a press
• UNSPSC Code 31171600 for industrial procurement classification

Compatibility

Designed for use with split taper sprockets and sheaves. Fits sprockets and sheaves with an outside diameter of 2.766 to 2.875 inches. Verify bore size, keyway dimensions, and bushing type designation against the sprocket or sheave manufacturer specifications before installation.

Installation Notes

Installation is performed by mechanical technicians or millwrights as part of a power transmission drive assembly. Shut down and lock out all power to rotating equipment before installing or removing the bushing. Ensure the shaft and bore are clean and free of burrs before seating the bushing. Follow the sprocket or sheave manufacturer torque sequence for the hub bolts to achieve proper clamping force and shaft alignment.