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Overview
The Martin Sprocket 2012-1-5/8 taper bushing is a precision-engineered shaft coupling component designed for industrial machinery and power transmission systems. This Type 2012 taper lock bushing accommodates a 1.625-inch bore and delivers secure, repeatable shaft mounting across conveyor systems, pump drives, and rotating equipment. Steel construction ensures durability in high-torque applications.
Key Features
- Type 2012 taper lock design for rapid installation and removal without shaft damage
- 1.625-inch (1-5/8″) bore accommodates standard industrial shafting
- Flush-mount profile without flange for space-efficient mounting
- Steel construction rated for standard bore and keyway machining
- Compatible with sprockets, sheaves, and rotating hubs via set screw tightening
- Two mounting cap screws provide secure hub engagement
Technical Specifications
- Bore Size: 1.625 inches (1-5/8″)
- Series: Type 2012
- Material: Steel
- Design: Taper lock, no flange
- Length Through Bore: 1.25 inches
- Keyway Size: 5/16″ x 5/32″
- Mounting Cap Screws: 2 required
- Cap Screw Bolt Circle: 2.625 inches
- Outside Diameter: 2.875 inches
- Weight: Approximately 1.10 lbs
- Taper Angle: 8° included angle
Typical Applications
- Conveyor pulley systems and drive shafts
- Centrifugal and gear pump installations
- Motor-to-sprocket power transmission
- Machine tool spindle and drive coupling
- Flush-mounted fan and blower assemblies
- Industrial belt and chain drive systems
Compatibility & Replacements
Compatible With
- Martin Sprocket sprockets with standard bores
- Industrial sheaves and pulleys (V-belt and synchronous)
- Rotating hubs on conveyors and material handling equipment
- Standard industrial shafting (machined to 1.625″ bore)
- Pump impeller hubs and motor couplings
Replaces / Drop-In Replacement For
- Martin 2012 series bushings in 1-5/8″ bore configuration
- Comparable Type 2012 taper lock bushings from other manufacturers
- Original-equipment bushings on rebuilt or upgraded machinery
Works With
- Standard set screw and cap screw fastening systems
- Metric and inch-system shafts with machined keyways
- Industrial maintenance and predictive monitoring protocols
- OEM power transmission assemblies and custom hubs
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