Browning 3694486 Qd Bushed V Belt Sheave 4 Groove

Product Description

The BROWNING 3694486 is a four-groove, Quick Detachable (QD) bushed V-belt sheave designed for industrial and HVAC drive applications. With an outside diameter of 5.68 inches and a bore range of 5/8 inch to 2-1/4 inches, this sheave accommodates a wide range of shaft sizes through its B-style QD bushing system. It carries belt pitch A, B, and 5V groove profiles, making it versatile across multiple V-belt configurations. At 8.6 pounds, it is a solid, production-grade component suited for blower, fan, and motor drive assemblies. Licensed HVAC technicians, millwrights, and mechanical contractors are the primary installers.

This sheave is commonly used in belt-driven fan and blower assemblies found in commercial and residential HVAC air handling units, rooftop units, and industrial ventilation systems. The four-groove configuration supports multi-belt drive setups that carry higher loads or require redundancy across the belt span. The QD bushing system allows the sheave to be mounted and removed without specialized pullers, which speeds up field service and preventive maintenance work on belt drive systems.

Key Features

• Four grooves for multi-belt drive configurations supporting higher torque loads
• QD bushing style B for tool-accessible installation and removal
• Bore range of 5/8 inch to 2-1/4 inches covers a wide variety of shaft diameters
• Compatible with belt pitch A (5.0 inch pitch diameter), belt pitch B (5.4 inch pitch diameter), and 5V (5.5 inch pitch diameter) profiles
• 5.68 inch outside diameter suits compact drive envelope requirements
• Solid construction at 8.6 pounds for durability in continuous-duty service

Compatibility

Designed as an OEM-style replacement or new-installation sheave for belt-driven fan, blower, and motor drive systems requiring a four-groove QD-bushed sheave with A, B, or 5V belt pitch compatibility.

Installation Notes

Installation and removal should be performed by a qualified mechanic or HVAC technician with the drive system fully de-energized and locked out per OSHA lockout/tagout procedures. The B-style QD bushing must be torqued to the bushing manufacturer specifications using the correct fasteners supplied with the bushing — do not substitute hardware. Verify belt tension and sheave alignment with a straightedge or laser alignment tool after installation to prevent premature belt and bearing wear. Refer to applicable codes and manufacturer drive design guidelines when sizing belt drive systems for new installations.