220-261-4 LeRoi / CompAir OEM Drive Coupler & Flange Assembly

The 220-261-4 LeRoi – CompAir OEM Drive Coupler & Flange Assembly is an original equipment power-transmission component set engineered specifically for LeRoi-CompAir rotary screw air compressor drive systems. This assembly includes the flexible drive coupler along with the corresponding mounting flange required to properly secure and align the coupling within the compressor drive train.

In rotary screw compressors, precise alignment between the motor and air-end is critical. The combination of a properly engineered coupler and matching flange ensures that torque is transmitted smoothly while torsional vibration and minor shaft misalignment are absorbed before they can damage critical components.

Because this is a complete OEM assembly, the coupler and flange are designed to work together as a matched system. Using the correct OEM assembly helps preserve factory alignment tolerances, balance characteristics, and vibration-damping performance.

Key Features and Benefits

• Genuine LeRoi – CompAir OEM Assembly – Includes the factory-specified drive coupler and mounting flange

• Exact Fit & Alignment – Designed as a matched set for proper shaft positioning and balance

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

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

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

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

• OEM Reliability – Preserves original compressor performance and service life

Functional Design and Performance

The 220-261-4 coupler and flange assembly functions as a critical interface between the drive motor and compressor air-end. The elastomeric coupling element absorbs vibration and transient torque spikes, while the flange ensures precise mounting and consistent alignment under load.

During startup, shutdown, and load changes, rotary screw compressors generate torsional forces that can place excessive stress on shafts, bearings, and seals. The elastomer element within the OEM coupler absorbs these forces, while the rigid flange maintains correct axial positioning and concentricity.

Because both components are manufactured to LeRoi – CompAir’s OEM specifications, the elastomer hardness, hub geometry, and flange dimensions are matched exactly to compressor operating requirements. This eliminates the fitment and balance issues often seen when couplers and flanges are sourced separately or replaced with non-OEM components.

Applications and Compatibility

The 220-261-4 LeRoi – CompAir OEM Drive Coupler & Flange Assembly is commonly used in:

• LeRoi – CompAir rotary screw air compressors

• Industrial compressed air systems

• Motor-to-air-end drive assemblies

• Compressor rebuilds and scheduled maintenance programs

This assembly is intended as a direct OEM replacement for the original factory-installed coupler and flange. Using the correct OEM assembly ensures proper alignment, vibration control, and protection of critical compressor components.

Technical Specifications

• OEM Part Number: 220-261-4

• Manufacturer: LeRoi – CompAir

• Component Type: Drive coupler and mounting flange assembly

• Material: Steel flange components with bonded elastomer coupler element

• Function: Torque transmission with vibration damping and alignment control

• Misalignment Capability: Designed to accommodate angular, axial, and parallel misalignment

• Operating Environment: Industrial rotary screw air compressors

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

Advantages of Using the Complete OEM Assembly

Replacing both the coupler and flange together ensures that alignment tolerances and balance characteristics are maintained exactly as designed. Mixing OEM and non-OEM components, or replacing only part of the assembly, can introduce vibration, accelerate wear, and shorten air-end and bearing life.

The 220-261-4 genuine OEM assembly delivers predictable performance, reduces mechanical stress, and supports long-term compressor reliability. For mission-critical compressed air systems, using the complete OEM coupler and flange assembly is essential.

Why Choose Stark Industrial Products

Stark Industrial Products supplies verified genuine OEM compressor components, including complete coupler and flange assemblies. We do not substitute aftermarket equivalents when OEM assemblies are specified.

• Genuine OEM parts only

• Fast order processing and secure packaging

• Knowledgeable technical support

• Trusted supplier for industrial air compressor components

If you need assistance confirming compatibility with your specific LeRoi – CompAir compressor model or serial range, our team is ready to help.