Browning 1026814 Single Groove Sheave 1 in Bore Cast Iron

Product Description

The BROWNING 1026814 is a finished bore single groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. Built from cast iron, this sheave features a 1 inch finished bore and a 5.45 inch outer diameter. The pitch diameter measures 5.2 inches for 4L and A belt types and 4.86 inches for 3L belt types. The overall length through the bore is 1-5/32 inches. Licensed HVAC technicians, millwrights, and mechanical contractors install this type of sheave as part of blower and fan drive assemblies where precise belt alignment and reliable torque transfer are required.

This single groove cast iron sheave is suited for residential and light commercial HVAC blower assemblies, exhaust fans, and general industrial belt drive setups. It accepts standard 3L, 4L, and A profile V-belts, making it a common replacement component in air handling units and belt-driven fan systems. The finished bore is ready for installation onto a 1 inch shaft without additional machining.

Key Features

• Finished 1 inch bore — no machining required for standard 1 inch shafts
• 5.45 inch outer diameter with a single V-belt groove
• Compatible with 4L, A, and 3L profile V-belts
• Cast iron construction for durability in belt drive applications
• Overall length through bore of 1-5/32 inches for compact fitment

Compatibility

Designed as an OEM-style replacement single groove sheave for residential and commercial belt-driven HVAC blower and fan drive systems using 3L, 4L, or A profile V-belts on 1 inch diameter shafts.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out electrical power to the unit before removing or installing any sheave or belt components. Verify shaft diameter, keyway dimensions, and belt profile before installation. Proper belt tension and sheave alignment should be confirmed after installation to prevent premature wear.