The Browning 1078369 is a precision-engineered H-series Split Taper Bushing designed for secure, high-torque industrial drivetrain applications. Featuring a 1-3/16″ bore size, this component utilizes a keyed shaft attachment to eliminate concentricity issues and prevent slippage under heavy radial loads. Manufactured from high-grade malleable iron, it provides superior ductility and tensile strength compared to standard grey iron alternatives, ensuring reliability in demanding HVACR and mechanical power transmission setups. The split-barrel design allows for a true interference fit on undersized shafts, while the external key provides positive drive torque. This tapered shaft bushing is fully interchangeable with other industry-standard H-bushings, making it a versatile choice for mounting sheaves, pulleys, and sprockets. Its double-split barrel ensures uniform gripping power across the entire length of the bore, reducing vibration and extending the service life of connected rotating equipment.
Key Benefits
High-Torque Capacity: The malleable iron construction offers increased resistance to fracturing under high-stress conditions.
Precise Shaft Alignment: The Split Taper design ensures a concentric grip, reducing runout and balancing issues in high-speed applications.
Ease of Installation: Includes cap screws for simplified mounting and removal, reducing downtime during field maintenance.
Universal Compatibility: Standardized H-series dimensions ensure seamless integration with Browning pulleys and compatible mechanical drives.
Common Questions
What is the maximum torque rating for an H-series 1-3/16″ bushing? Torque capacity depends on the specific hub material and bolt torque; however, standard H-series malleable iron bushings are rated for approximately 950 lb-in when properly seated.
Does this bushing require a specific keyway size? Yes, this 1-3/16″ bore bushing requires a standard 1/4″ x 1/8″ keyway for secure shaft engagement.
Can I use this bushing on a slightly worn shaft? The split-barrel design allows for a tighter grip than solid-bore bushings, accommodating minor shaft tolerances, though a tapered fit is always recommended on shafts meeting ANSI standards for optimal performance.
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.
