250035-375 Sullair OEM Split Taper Lock Bushing

The 250035-375 Sullair OEM Split Taper Lock Bushing is an original equipment shaft-mounting component engineered for use in Sullair rotary screw air compressor drive assemblies. This bushing is designed to rigidly secure drive components—such as coupler hubs, flanges, or pulleys—onto a shaft while maintaining precise concentric alignment.

In compressor drive systems, proper shaft engagement is critical. Any movement, slippage, or misalignment between the shaft and mounted component can lead to vibration, accelerated bearing wear, and premature component failure.

Unlike flexible couplers, this component performs a rigid mechanical locking function, providing a secure, backlash-free connection between the shaft and the mounted drive element.

Key Features and Benefits

• Genuine Sullair OEM Part – Manufactured and specified by Sullair, not aftermarket or equivalent

• Split Taper Lock Design – Provides uniform radial clamping and high holding torque

• Precision Machined – Ensures accurate concentricity and minimal runout

• High Torque Capacity – Suitable for industrial compressor drive systems

• Secure Shaft Engagement – Prevents slippage under load

• Serviceable Design – Allows controlled installation and removal

Functional Design and Performance

The 250035-375 split taper lock bushing operates by drawing its tapered outer surface into a matching tapered hub bore as mounting screws are tightened. This action generates radial compression around the shaft, creating a powerful mechanical grip that locks the mounted component securely in place.

The split design allows the bushing to compress evenly around the shaft circumference, which is critical for maintaining alignment and balance in high-speed rotating assemblies. In Sullair compressor applications, maintaining concentric alignment helps reduce vibration, protect bearings, and preserve air-end integrity.

Because this is a genuine Sullair OEM bushing, the taper angle, material hardness, and surface finish are matched exactly to Sullair drive component requirements. This ensures predictable clamping force and consistent performance across the full operating range of the compressor.

Applications and Compatibility

The 250035-375 Sullair OEM Split Taper Lock Bushing is commonly used in:

• Sullair rotary screw air compressor drive assemblies

• Coupler hubs and mounting flanges

• Pulley, sheave, and sprocket installations

• Motor-to-air-end drive systems

• Compressor rebuilds and scheduled maintenance programs

This bushing is intended as a direct OEM replacement for the original factory-installed Sullair component and should be used only with compatible tapered hubs or flanges designed for split taper lock bushings.

Technical Specifications

• OEM Part Number: 250035-375

• Manufacturer: Sullair

• Component Type: Split taper lock bushing

• Material: High-strength steel

• Function: Rigid shaft mounting and torque transmission

• Mounting Method: Tapered interference fit with mounting fasteners

• Operating Environment: Industrial rotary screw air compressors

Advantages of Using the OEM Sullair Bushing

Using the 250035-375 genuine Sullair OEM bushing ensures that shaft-mounted components remain securely aligned and properly supported throughout compressor operation. Aftermarket bushings may differ in taper geometry, material hardness, or dimensional tolerances, which can result in uneven clamping, vibration, or premature wear.

This OEM bushing provides consistent holding strength, preserves alignment, and helps extend the service life of bearings, shafts, and drive components. For critical compressor drive systems, using genuine OEM shaft-mounting components is essential to maintaining reliability and minimizing downtime.

Why Choose Stark Industrial Products

Stark Industrial Products supplies verified genuine OEM compressor components, including original Sullair bushings and drive hardware. We do not substitute aftermarket equivalents when OEM parts are specified.

• Genuine OEM Sullair components

• Fast order processing and secure packaging

• Knowledgeable technical support

• Trusted supplier for industrial air compressor parts

If you need help confirming compatibility with a specific Sullair compressor model or drive assembly, our team is ready to assist.