Browning 3694163 Qd V Belt Sheave 3 Groove 4.88 in Od

Product Description

The BROWNING 3694163 is a three-groove, QD bushed V belt sheave designed for power transmission applications in HVAC, industrial, and mechanical drive systems. Built from iron, it accepts a B-style QD bushing and accommodates bore diameters ranging from 5/8 inch to 2-1/4 inches, giving installers flexibility across a range of shaft sizes. The outside diameter measures 4.88 inches, with a 5V belt pitch diameter of 4.7 inches, an A-section pitch diameter of 4.2 inches, and a B-section pitch diameter of 4.6 inches. Licensed HVAC mechanics and millwrights use this sheave in fan and blower drive assemblies where multi-belt configurations are required for load sharing and torque transfer.

This sheave is suited for residential and light commercial HVAC air handler fan drives, cooling tower fan assemblies, and general mechanical drive systems requiring 5V, A, or B cross-section V belts. The three-groove configuration supports multi-belt drive setups, which reduce belt loading and extend service intervals. Applications include belt-driven supply fans, exhaust fans, blowers, and similar rotating equipment where a QD-style bushed sheave is specified.

Key Features

• Three-groove design accepts 5V, A, and B cross-section V belts
• QD bushing style B provides secure, concentric shaft mounting and easy removal
• Bore range of 5/8 inch to 2-1/4 inches accommodates multiple shaft sizes
• Iron construction for durability in continuous-duty drive applications
• 4.88 inch outside diameter with 4.7 inch 5V belt pitch diameter

Compatibility

Designed as an OEM-style replacement or new-installation sheave for multi-groove V belt drive systems utilizing 5V, A, or B cross-section belts with a B-style QD bushing.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified millwright. Disconnect and lock out all power to the drive system before removing or installing any sheave or bushing. A QD bushing must be sourced separately and installed according to the bushing manufacturer's torque sequence to ensure concentric seating on the shaft. After installation, verify belt tension and alignment before returning the system to service.