Browning 1042704 BK190H Qd Bushed V Belt Sheave 1 Groove

Product Description

The BROWNING 1042704 is the BK190H single-groove, QD bushed V-belt sheave designed for industrial belt-drive systems in HVAC, fan, pump, and blower applications. With an outside diameter of 18.75 inches and an H-style QD bushing, this sheave accepts bore diameters from 0.375 inches up to 1.5 inches, giving installers flexibility when matching to various shaft sizes. The belt pitch A diameter is 18.0 inches and the belt pitch B diameter is 18.4 inches. At 15.55 pounds, this is a solid, full-size sheave suited for heavy-duty rotating equipment. Installation is handled by licensed mechanics or qualified HVAC technicians working on air-handling and mechanical drive systems.

This sheave is commonly used in commercial and industrial belt-drive applications including centrifugal fans, blowers, compressors, and pump assemblies where a large-diameter, single-groove V-belt drive is required. The H-style QD (Quick Detachable) bushing system allows for straightforward mounting and removal without specialty tooling, making it a practical choice for planned maintenance or equipment retrofits. It is compatible with standard A-section and B-section V-belts depending on the pulley configuration and system design.

Key Features

• Single-groove design for straightforward A-section or B-section V-belt drive configurations
• 18.75-inch outside diameter suits large-diameter, low-speed drive applications
• H-style QD bushing accepts bore sizes from 0.375 inches to 1.5 inches
• Belt pitch A diameter of 18.0 inches and belt pitch B diameter of 18.4 inches
• QD bushing system enables fast, secure mounting and clean removal without damage to the shaft
• Weighs 15.55 pounds, built for durable, continuous-duty service

Compatibility

Designed as an OEM-style replacement or new-installation sheave for industrial and commercial belt-drive systems using H-style QD bushings and standard A-section or B-section V-belts. Bore range of 0.375 inches to 1.5 inches accommodates a wide variety of shaft sizes in fan, blower, and pump drive assemblies.

Installation Notes

Installation should be performed by a qualified mechanic or HVAC technician. De-energize and lock out the drive system before mounting or removing the sheave. Ensure the QD bushing bolts are torqued and the sheave is aligned with the mating pulley before tensioning the belt. Follow OSHA lockout/tagout procedures and applicable mechanical codes throughout service.