02250146-634 Sullair OEM Drive Coupler | Compressor Motor-to-Air-End Coupling

The 02250146-634 Sullair OEM Drive Coupler is an original equipment flexible coupling engineered specifically for use in Sullair rotary screw air compressor drive assemblies. This component connects the electric motor to the compressor air-end, allowing rotational power to be transmitted efficiently while absorbing torsional vibration and compensating for minor shaft misalignment.

In rotary screw compressors, the drive coupler is a critical mechanical interface. Improper elastomer characteristics, insufficient vibration damping, or dimensional inaccuracies can result in excessive vibration, accelerated bearing wear, shaft damage, and premature air-end failure. The 02250146-634 coupler is manufactured to Sullair’s OEM engineering standards to ensure correct fitment, balance, and long-term operational reliability.

This coupler is designed for continuous-duty compressor environments where equipment operates under fluctuating loads, temperature variation, and extended run cycles.

Key Features and Benefits

• Genuine Sullair OEM Part – Factory-specified original equipment component

• Exact Fit & Function – Direct replacement for the original factory-installed drive coupler

• Elastomeric Flexible Design – Absorbs torsional vibration and dampens shock loads

• Smooth Torque Transmission – Stable, backlash-free power transfer from motor to air-end

• Misalignment Compensation – Accommodates angular, axial, and parallel shaft misalignment

• Heavy-Duty Construction – Designed for continuous-run industrial compressor service

• OEM Reliability – Preserves original compressor performance and service life

Functional Design and Performance

The 02250146-634 OEM drive coupler utilizes a resilient elastomer element bonded to precision-machined metal hubs. This construction allows the coupler to act as a torsional buffer, isolating vibration and transient torque spikes before they are transmitted into the compressor drive train.

During startup, shutdown, and load transitions, rotary screw compressors generate torsional shock that can place significant stress on shafts, bearings, and seals. The elastomer element within the 02250146-634 absorbs these forces, helping maintain alignment, reduce mechanical noise, and protect adjacent components.

Because this is a genuine OEM Sullair component, the elastomer hardness, bonding method, and hub geometry are matched exactly to compressor operating characteristics. This ensures predictable damping behavior and consistent performance throughout the service life of the coupler.

Applications and Compatibility

The 02250146-634 Sullair OEM Drive Coupler is commonly used in:

• Sullair rotary screw air compressors

• Industrial compressed air systems

• Motor-to-air-end drive assemblies

• Compressor rebuilds and preventative maintenance programs

This coupler is intended as a direct OEM replacement for the original factory-installed unit referenced by part number 02250146-634.

Technical Specifications

• OEM Part Number: 02250146-634

• Manufacturer: Sullair

• Component Type: Flexible elastomeric drive coupler

• Material: Steel hubs with bonded elastomer element

• Function: Torque transmission with vibration damping

• Misalignment Capability: Angular, axial, and parallel

• Operating Environment: Industrial rotary screw air compressors

• Maintenance: Lubrication-free; inspect during routine compressor service

Advantages of Using a Genuine Sullair OEM Coupler

Using the 02250146-634 genuine Sullair OEM drive coupler ensures your compressor drive system operates exactly as designed. Non-OEM or incorrect couplers may differ in elastomer stiffness, balance, or dimensional tolerances, which can introduce excessive vibration, reduce efficiency, and shorten air-end life.

This OEM coupler delivers consistent torque transmission, minimizes mechanical stress on connected components, and helps extend the service life of bearings, shafts, and compressor air-ends. For mission-critical compressed air systems, genuine OEM components are essential for maintaining uptime and reliability.

Why Choose Stark Industrial Products

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

• Genuine OEM Sullair parts

• Fast order processing and secure packaging

• Knowledgeable technical support

• Trusted supplier for industrial air compressor components

If you need assistance confirming compatibility with a specific Sullair compressor model or serial range, our team is ready to help.