Browning 1122670 Min Plain Bore Sprocket 13 Teeth 5/8 in

Product Description

The BROWNING 1122670 is a minimum plain bore sprocket designed for use with No. 50 roller chain in industrial drive applications. Built from steel, it features 13 teeth and a 5/8-inch chain pitch, with an outside diameter of 2.91 inches. The plain bore design accepts a bore range from 5/8 inch minimum up to 1-5/16 inches maximum, allowing the installer to finish-bore and keyway the hub to the exact shaft dimension required. This sprocket suits conveyor systems, machinery drives, and other power transmission assemblies where a field-bored component is preferred over a fixed-bore or bushed design. It is typically installed by millwrights, maintenance mechanics, or industrial technicians.

This sprocket is suited for light-to-medium duty power transmission equipment in manufacturing, material handling, and industrial maintenance environments. The B-series bushing designation and plain bore configuration make it a practical choice when precise shaft sizing is determined in the field. It is compatible with standard ANSI No. 50 roller chain and is sold individually, making it suitable for both new installations and single-component replacements.

Key Features

• 13-tooth, 5/8-inch pitch configuration matched to ANSI No. 50 roller chain
• Plain bore design allows field finishing to exact shaft specification
• Bore range from 5/8 inch to 1-5/16 inches maximum
• Steel construction for durability in industrial drive applications
• 2.91-inch outside diameter in a compact profile
• B-series bushing series designation

Compatibility

Designed for use with ANSI No. 50 standard roller chain at 5/8-inch pitch. Plain bore configuration is intended for finish-boring to match the specific shaft diameter of the driven or drive assembly.

Installation Notes

Installation is typically performed by a qualified millwright or maintenance mechanic. The shaft and all connected drive components must be fully de-energized and locked out before installation. The plain bore must be finish-bored, reamed, and keyseated to match the shaft before mounting. Verify sprocket alignment and chain tension after installation per the equipment manufacturer's drive design specifications.