Guide to Drive Couplers

Identify Your Drive Coupler

Not sure which coupler you have? You can identify your coupler using OEM part numbers,
stamped text, physical dimensions, or compressor or machine model. If the part number is worn off,
send us a photo — we’ll identify it for you.

Identify My Coupler →

Branded Guides for Drive Couplers

We maintain an extensive OEM-to-aftermarket replacement library for industrial compressors,
pumps, and equipment. Select your brand below to see drive coupler guides and replacement options:

Shop All Drive Couplers →

Types of Drive Couplers

Different applications require different coupler families. Understanding each type ensures
proper fit and long-term performance.

Torsional Couplers (Arcusaflex, ACT Series)

Designed for high torque, high vibration, and heavy-duty applications commonly found in screw compressors and engine-driven equipment.

Jaw Couplers (Lovejoy-Style)

Use a flexible spider element to absorb misalignment and shock. Common in smaller compressors, pumps, and general industrial equipment.

Disc Couplers

High precision, low backlash, and excellent for alignment-critical or high-speed applications.

Elastomeric Rubber Couplers

Widely used on air compressors and pump systems where vibration damping and simplicity are important.

Grid Couplers

Flexible and durable, used in heavy power transmission setups where shock loads and misalignment must be managed.

Drive Coupler FAQ

What is a drive coupler on an air compressor?

A drive coupler connects the electric motor to the compressor pump, transferring torque
while dampening vibration and minor shaft misalignment.

How do I identify the drive coupler I need?

You can identify it by OEM part number, stamped text, dimensions, or compressor or machine model.
If the number is unreadable, send Stark Industrial a photo and we’ll identify it for free.

Why do drive couplers fail?

Common causes include misalignment, worn bushings, vibration, contaminated rubber elements,
and excessive load. Replacing a coupler without correcting alignment often leads to repeated failure.

How long should a drive coupler last?

Most couplers last 2–5 years depending on run time, alignment, and vibration levels.
Heavy industrial usage may wear them sooner.

Do you offer same-day shipping?

Yes. All in-stock couplers ship the same day from our Texas warehouse.

Do drive couplers interchange between brands?

Sometimes — many couplers have cross-compatible OEM equivalents.
Use our brand-specific guides above or contact us for confirmation.

Need Help Finding the Right Coupler?

We help customers daily with identifying and matching drive couplers using part numbers,
dimensions, compressor models, and photos.

At Stark Industrial Products, we specialize in one mission: supplying the exact drive couplers industrial
machines rely on to stay productive, reliable, and safe. From compressors and pumps to forestry equipment,
mining systems, and high-demand rotating machinery, we deliver the factory-correct couplers that keep America’s equipment running.

We support industries nationwide including manufacturing, forestry, oil and gas, wastewater, agriculture, mining, construction,
and municipal operations. Whether you maintain a single compressor or manage an entire fleet, we ship the correct coupler fast,
backed by professional guidance and unmatched product knowledge.

We are committed to becoming the most dependable coupler supplier in the United States by combining accuracy, fast fulfillment,
and true equipment expertise. The brands we support are some of the most respected names in industrial machinery
— and the couplers we provide are engineered to meet the demands of real-world operation.