Browning 1129261 Finished Bore Sprocket 15T 3/4in Pitch

Product Description

The BROWNING 1129261 is a finished bore roller chain sprocket designed for use with ANSI 60 chain at a 3/4 inch pitch. Machined from steel, it features 15 teeth, a 1 inch bore diameter, and a 2.891 inch hub diameter with a 3.98 inch outside diameter. The finished bore design means the bore is already machined to final size, eliminating the need for secondary boring operations before installation. This sprocket is a standard power transmission component suited for conveyor drives, industrial machinery, and HVAC equipment drive systems where chain drive assemblies are specified.

This sprocket fits applications requiring an ANSI No. 60 roller chain drive. The 3/4 inch pitch and 15-tooth configuration produce a specific drive ratio and chain speed that must be matched to the mating sprocket and chain on the driven assembly. Typical installations include light-to-medium duty industrial conveyor systems, pump drives, blower drives, and similar chain-driven mechanical equipment in commercial and industrial settings. Licensed mechanical contractors and industrial maintenance technicians are the primary installers.

Key Features

• Finished bore at 1 inch — ready to install without additional machining
• Steel construction for durability in mechanical drive applications
• 15 teeth with 3/4 inch pitch, compatible with ANSI No. 60 roller chain
• 2.891 inch hub diameter provides a secure mounting interface
• 3.98 inch outside diameter suits compact drive envelope requirements

Compatibility

Designed for use with ANSI No. 60 roller chain at 3/4 inch pitch. The bore diameter is fixed at 1 inch; the mating shaft must be 1 inch in diameter to achieve proper fit.

Installation Notes

Installation should be performed by a qualified mechanical or industrial maintenance technician. De-energize and lock out all power to the drive system before removing or installing any sprocket. Verify that the shaft diameter matches the 1 inch finished bore before pressing or sliding the sprocket onto the shaft, and secure with a properly sized key and set screw as required by the shaft configuration. Align the sprocket face with the mating sprocket within acceptable tolerances to prevent accelerated chain and sprocket wear.