Coupling Adapter with Lock Nut for Test Bench

Coupling Adapter with Lock Nut for Test Bench

Coupling Adapter with Lock Nut for Test Bench

This coupling adapter connects the drive motor shaft to the cam box or injector pump on a common rail injector test bench. The integrated locking nut secures the coupling during high-speed operation and prevents slippage under load.

Key Features

• Lock nut design for secure fastening during high-speed rotation

• Internal keyway for positive torque transmission

• Durable construction for workshop service environments

• Direct replacement part for common rail test bench drive systems

Typical Application

Used on common rail injector test benches to transmit drive from the motor to the cam box, cam-lobe profile box, or injector pump. Suitable for routine replacement when the original coupling shows wear or damage.

Ordering Information

Two size options are available to fit different test bench drive configurations. Both versions include the integrated lock nut as shown in the product photos.

For current pricing, lead time, and shipping options, contact our sales team via WhatsApp with your test bench model and the size required.

Why Replace a Worn Coupling

A worn coupling causes vibration, noise, and inaccurate injection volume measurement. Regular inspection of the coupling and lock nut during scheduled maintenance helps keep the test bench running smoothly.

Beacon Machines keeps common wear parts in stock for fast dispatch to workshops and service centers.

About Beacon Machines

Beacon Machines supplies common rail test benches, EUI EUP test benches, HEUI test benches, and a full range of spare parts and repair tools for diesel fuel injection workshops worldwide. For inquiries, contact us via WhatsApp.

Frequently Asked Questions

Which test benches is this coupling compatible with? It fits the drive side of most common rail test bench models that use a keyed coupling between motor and cam box or injector pump.

Is the lock nut included? Yes, the lock nut is integrated on the coupling body as shown in the product images.

Installation Notes

Remove the worn coupling from the drive shaft. Align the keyway with the motor shaft key and slide the new coupling into position. Tighten the lock nut to the recommended torque before starting the test bench.

Maintenance Tips

• Inspect the coupling and lock nut during every scheduled service

• Check the keyway for wear or rounding

• Replace the coupling if vibration or noise appears at high speed

• Keep a spare coupling in stock to minimize downtime

Compatible Test Bench Models

Suitable for common rail test benches that use a keyed drive coupling between the motor and cam box or injector pump. Contact us via WhatsApp with your test bench model to confirm fitment before ordering.