Browning 1128271 Finished Bore Sprocket 17T 1/2in Pitch

Product Description

The BROWNING 1128271 is a finished bore sprocket designed for use with ANSI 40 roller chain. It features 17 teeth, a 1/2 inch chain pitch, and a 1 inch finished bore diameter, making it ready for direct shaft installation without additional machining. The hub diameter measures 2.203 inches and the outside diameter is 2.96 inches. Constructed from steel, this sprocket delivers the strength and wear resistance required in demanding mechanical drive applications. It is suited for HVAC equipment drives, conveyor systems, and industrial power transmission assemblies where a standard ANSI 40 chain drive is specified.

This sprocket fits applications using ANSI 40 roller chain with a 1/2 inch pitch. It is commonly installed in light-to-medium duty power transmission systems found in commercial HVAC units, fan drives, pump drives, and general industrial machinery. The finished bore is machined to 1 inch, matching directly to a 1 inch shaft. Installation is straightforward for mechanical technicians familiar with chain drive assemblies. No additional boring or machining is required at the time of installation.

Key Features

• Finished 1 inch bore — no machining required, installs directly onto a 1 inch shaft
• 17 teeth with 1/2 inch pitch for use with ANSI 40 roller chain
• Steel construction for strength and durability in power transmission service
• Outside diameter of 2.96 inches and hub diameter of 2.203 inches
• ANSI Chain Trade Size 40 compliance for standardized drive system compatibility

Compatibility

Designed as an OEM-style replacement or direct-fit sprocket for mechanical drive systems using ANSI 40 roller chain with a 1/2 inch pitch and a 1 inch drive shaft.

Installation Notes

Installation should be performed by a qualified mechanical or HVAC technician. Disconnect and lock out all power to the drive system before beginning work. Ensure the mating shaft is clean and free of burrs before pressing or sliding the sprocket into position. Verify chain alignment and tension after installation per the equipment manufacturer's service documentation.