Browning 1033497 Two Groove V-belt Sheave 4.25in Od

Product Description

The BROWNING 1033497 is a finished bore, two groove V-belt sheave designed for industrial and mechanical drive applications. Cast from iron for durability and dimensional stability, this sheave features a 4.25-inch outer diameter and a 1.375-inch finished bore diameter, making it ready to mount without additional machining. The belt pitch diameter for Type B belts is 3.9 inches, and the pitch diameter for Type 4L or A belts is 3.5 inches. Licensed HVAC and mechanical trades rely on sheaves like this for blower assemblies, fan drives, and other belt-driven equipment in commercial and residential systems.

This sheave is suited for use in belt-drive systems found in commercial HVAC air handling units, industrial blowers, pump drives, and similar rotating equipment. The two-groove configuration allows for dual-belt drive setups, which increases power transmission capacity and provides redundancy. The finished bore is machined to accept a 1.375-inch shaft directly, eliminating the need for secondary boring operations on the job site. Installation is common in mechanical rooms and equipment yards where belt-drive assemblies are maintained or replaced by HVAC technicians and millwrights.

Key Features

• Two-groove design supports dual V-belt drive configurations for increased torque capacity
• Finished bore of 1.375 inches fits standard shaft sizes without additional machining
• 4.25-inch outer diameter suits a range of blower and fan drive applications
• Compatible with Type B and Type 4L or A V-belts
• Cast iron construction provides strength and dimensional consistency under load
• Overall length through bore of 1-15/32 inches for standard shaft engagement

Compatibility

Designed as an OEM-style replacement sheave for two-groove V-belt drive systems using Type B or Type 4L/A belts with a 1.375-inch bore shaft.

Installation Notes

Installation should be performed by a qualified HVAC technician or millwright. Disconnect and lock out all electrical power to the drive system before removing or installing any sheave. Verify shaft diameter, keyway dimensions, and belt type before mounting. Ensure proper belt tension and sheave alignment after installation to prevent premature belt and bearing wear.