Browning B 2 1/8 Bushing

As a veteran tech, you know that keeping high-torque HVACR drives in alignment starts with a reliable connection. The Browning B 2 1/8 Bushing is the industry standard for securing sheaves, sprockets, and pulleys to a 2.125-inch shaft. Built with a solid flange and a double split barrel, this split taper bushing ensures maximum concentricity, reducing the vibration that kills bearings. Unlike standard QD bushings, the Browning B-series features a 3/4" per foot self-locking taper and a "key-to-key" drive system—utilizing both a shaft key and a 1/2" x 1/4" keyseat to provide a positive mechanical lock capable of handling high-demand industrial loads. With a 3.6875" outside diameter and 1.9375" length through bore, this component is designed for precise fitment in tight mechanical rooms. Each unit includes the necessary 5/16" x 1 1/4" cap screws to reach the required 192 in-lb torque, ensuring your drive remains "set and forget."

• Double-Split Barrel: Delivers a true 360-degree clamp fit to prevent shaft marring and axial movement.
• Positive Key-to-Key Drive: High torque capacity managed through both the shaft and the 1/2" x 1/4" keyway.
• Interchangeable Design: Fully compatible with Browning split taper sheaves and standard industrial fan/motor drives.
• Durable Sintered Steel/Iron: Engineered to withstand the thermal cycling and stress of constant-duty HVAC applications.

• What is the proper torque for the mounting bolts? Tighten the three 5/16" cap screws progressively to 192 inch-pounds using a calibrated torque wrench.
• Does it include the key? Yes, the Browning B 2 1/8 comes with the special key required for the split taper interface.
• Is this compatible with other brands? This is a standard B-series split taper bushing; verify the bolt circle (3.125") matches your hub for cross-brand compatibility.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.