Boston Gear 09596 Spur Gear 12 Teeth 0.25 in Bore Steel

Product Description

The BOSTON GEAR 09596 is a steel spur gear designed for light-duty power transmission applications. It features 12 teeth cut at a 24 diametral pitch and operates at a 14.5-degree pressure angle. The bore diameter is 0.25 inches, the pitch diameter is 0.5 inches, and the outside diameter measures 0.58 inches. Face width is 0.25 inches and hub projection is 0.31 inches. This gear is a standard catalog component typically installed by mechanical technicians, millwrights, and maintenance professionals in machinery, conveyor, and drive-train assemblies.

This spur gear is suited for precision-pitch drive systems requiring a 24 diametral pitch configuration. It fits compact mechanical assemblies where a 0.25-inch bore shaft interface is required. Typical applications include small machine drives, instrument gear trains, and general industrial motion-control setups. Its steel construction provides durability in moderate-load, moderate-speed environments where dimensional accuracy and consistent tooth engagement are critical to reliable operation.

Key Features

• 24 diametral pitch for compatibility with standard fine-pitch drive systems
• 12 teeth with a 14.5-degree pressure angle for smooth, efficient tooth engagement
• 0.25 inch bore diameter for direct shaft mounting
• 0.58 inch outside diameter fits compact gear train envelopes
• Steel construction for durability under mechanical load
• 0.31 inch hub projection provides positive shaft engagement depth

Compatibility

Designed as an OEM-style replacement or direct-fit component for mechanical drive assemblies requiring a 24 diametral pitch, 12-tooth spur gear with a 0.25 inch bore diameter.

Installation Notes

Installation is typically performed by a qualified millwright or mechanical technician. Disengage and lock out all power sources before removing or installing drive components. Verify shaft diameter matches the 0.25 inch bore before pressing or securing the gear. Ensure proper gear mesh and backlash with mating components before returning the drive to service.