Browning 1042977 2BK36H 2 Groove Qd Bushed V Belt Sheave

Product Description

The BROWNING 1042977, model 2BK36H, is a two-groove, quick-detachable (QD) bushed V-belt sheave designed for industrial and commercial power transmission applications. With an outside diameter of 3.75 inches and a bore range of 3/8 to 1-1/2 inches, this iron sheave accepts an H-style QD bushing for secure, repeatable shaft mounting. It is compatible with both A-section and B-section V-belts, with a belt pitch diameter of 3.0 inches for A-section and 3.4 inches for B-section. HVAC technicians, millwrights, and mechanical contractors install this type of sheave on fan and blower drive systems where reliable belt drive performance is required.

This sheave is suited for light-to-medium duty belt drive assemblies found in commercial HVAC air handling units, industrial fans, blowers, and general-purpose machinery. The two-groove configuration allows dual-belt drive setups, improving torque transmission and load distribution. The H-style QD bushing system simplifies installation and removal without requiring specialized tooling, making it practical for field service and planned maintenance work.

Key Features

• Two-groove design supports dual A-section or B-section V-belt configurations
• Outside diameter of 3.75 inches with belt pitch diameters of 3.0 inches (A) and 3.4 inches (B)
• Bore range from 3/8 to 1-1/2 inches accommodates a variety of shaft sizes via H-style QD bushing
• H-style quick-detachable bushing system allows fast, tool-efficient installation and removal
• Cast iron construction provides durability in continuous-duty drive applications

Compatibility

Designed as an OEM-style replacement or upgrade sheave for dual-groove A and B section V-belt drives using an H-style QD bushing on shafts from 3/8 to 1-1/2 inches in diameter.

Installation Notes

Installation should be performed by a qualified mechanic or HVAC technician following applicable machinery safety standards. Disconnect and lock out all power to the drive system before mounting or removing the sheave. Verify shaft diameter falls within the 3/8 to 1-1/2 inch bore range and select the appropriate H-style QD bushing separately. After mounting, align sheave faces within manufacturer tolerances and check belt tension before returning the drive to service.