Overview
The Gates 4535 3-3/8 Taper-Lock Bushing is a precision industrial coupling component designed for mechanical power transmission in sheaves, sprockets, and pulley systems. This flangeless, cast-iron bushing provides secure shaft-to-hub mounting with an engineered 8° taper and flush-mounted design that eliminates protruding parts and ensures zero wobble during operation. Suitable for automotive, printing, manufacturing, and industrial equipment applications.
Key Features
- 8° tapered-lock design for secure, repeatable positioning without shaft slip
- Flangeless construction for clean, compact installation in tight spaces
- Flush-mounted flush design with no protruding components
- Cast-iron body provides strength and wear resistance across temperature extremes
- Includes mounting bolts and washers for quick installation
- Compatible with Gates Taper-Lock style sheaves, sprockets, and pulleys
Technical Specifications
- Bore Diameter: 3-3/8 inches
- Outside Diameter: 6-3/8 inches
- Length Through Bore (OAL): 3-1/2 inches
- Series: Gates 4535 Taper-Lock
- Taper Angle: 8 degrees
- Torque Capacity: 110,000 in-lb
- Bolt Circle Diameter: 6.13 inches
- Number of Bolt Holes: 3
- Fastener Size: 3/4-10 × 2 inches
- Material: Cast Iron
- Finish: Finished Bore with Keyway
Typical Applications
- Conveyor belt drive systems and material handling equipment
- Centrifugal and positive displacement pump drives
- Motor-driven fan and blower assemblies
- Industrial printing equipment and textile machinery
- HVAC equipment, compressors, and refrigeration units
- Automotive auxiliary drives and power-take-off (PTO) systems
Compatibility & Replacements
Compatible With
- Gates Taper-Lock style sheaves (pulleys)
- Gates Taper-Lock style sprockets
- Standard 4535 series shaft couplings
- Power transmission belts and chain drive systems
- Any 3-3/8″ bore, 8° taper equipment
Replaces / Drop-In Replacement For
- Gates 78587306 (original manufacturer part number)
- Other 4535 3-3/8 bore Taper-Lock bushings from equivalent manufacturers
- Verify compatibility with your system integrator before ordering
Works With
- Any power transmission system using Gates 4535 series components
- Standard mechanical shaft-coupling and hub installations
- Conventional belt, chain, and direct-drive applications








