Browning 1001569 3-groove Qd V-belt Sheave 4.95 in Od

Product Description

The BROWNING 1001569 is a three-groove, quick-detachable (QD) bushed V-belt sheave designed for industrial drive applications. With a 4.95-inch outside diameter and a P1 bushing style, this cast iron sheave accepts bore sizes ranging from 0.5 inches to 1.75 inches, giving installers flexibility when matching to shaft sizes in the field. It carries a belt pitch A diameter of 4.2 inches and a belt pitch B diameter of 4.6 inches. Licensed HVAC and mechanical contractors, as well as industrial maintenance technicians, regularly specify this type of sheave when building or servicing belt-driven blower and fan assemblies.

This sheave is suited for residential and light commercial HVAC air handlers, exhaust fans, and general-purpose industrial drive systems that use A, B, or 5V cross-section V-belts. The three-groove design allows multi-belt configurations, which distribute load and improve drive efficiency in higher-torque applications. Typical installations include belt-driven supply and return air blowers, pump drives, and fan systems where a QD bushing arrangement is specified for easier bushing removal and shaft alignment during service calls.

Key Features

• Three-groove configuration supports multi-belt A, B, and 5V cross-section V-belt drives
• 4.95-inch outside diameter with 4.2-inch belt pitch A diameter and 4.6-inch belt pitch B diameter
• Bore range of 0.5 inches to 1.75 inches accommodates a wide variety of shaft sizes
• P1 QD bushing style allows fast, tool-assisted bushing installation and removal
• Cast iron construction provides durability in continuous-duty drive applications

Compatibility

Designed as an OEM-style replacement or new-installation sheave for belt-driven systems using A, B, or 5V cross-section V-belts with a P1 QD bushing interface.

Installation Notes

Installation should be performed by a qualified mechanical or HVAC technician. Disconnect and lock out all power to the drive system before removing or installing any sheave or bushing components. Ensure the shaft diameter falls within the 0.5-inch to 1.75-inch bore range before selecting a bushing. Follow the bushing manufacturer torque sequence for the P1 QD bushing to seat the sheave squarely on the shaft, and verify belt alignment and tension after assembly per the belt manufacturer guidelines.