Browning 1881044 Finished Bore Sprocket 21 Teeth Steel

Product Description

The BROWNING 1881044 is a finished bore sprocket designed for use with ANSI No. 50 roller chain. It features 21 teeth and a 5/8 inch chain pitch, with a fixed bore diameter of 1-1/8 inches. The outside diameter measures 4.52 inches. Constructed from steel, this sprocket is built to handle the load and wear demands of industrial drive and conveyor applications. Licensed mechanics, millwrights, and maintenance technicians install this type of component as part of power transmission assemblies in both light industrial and commercial mechanical systems.

This sprocket is suited for ANSI No. 50 chain drives in applications requiring a 21-tooth, finished bore configuration. Finished bore sprockets ship ready to install on a shaft of the specified diameter, making them a practical choice for replacement or new-build drive systems in manufacturing, material handling, and mechanical equipment maintenance. The fixed 1-1/8 inch bore eliminates the need for additional machining when the shaft size matches the bore specification.

Key Features

• 21-tooth count with 5/8 inch chain pitch matched to ANSI No. 50 roller chain
• Finished bore diameter of 1-1/8 inches — ready for direct shaft installation
• Outside diameter of 4.52 inches
• Steel construction for durability under load in industrial drive systems
• Sold individually — package quantity of 1

Compatibility

Designed as an OEM-style replacement or new-installation component for ANSI No. 50 roller chain drive systems requiring a 21-tooth finished bore sprocket with a 1-1/8 inch bore diameter.

Installation Notes

Installation is typically performed by a millwright or qualified maintenance technician. De-energize and lock out the drive system before removing or installing any sprocket. Ensure the shaft diameter matches the finished bore specification of 1-1/8 inches before installation. Follow applicable ANSI and OSHA machine guarding requirements when returning the drive to service.