Nexen 801865, Open Air Engaged Torque Limiter

Nexen 801865 Open-Air Engaged Torque Limiter - TL-A Series, Single-Unit Industrial Torque Protector
✔️ Open-Air TL-A torque limiter, bore 1.438 in, 27,700 in-lb @80 psi

The Nexen 801865 is an open-air engaged torque limiter in Nexen’s TL-A Series, designed to protect drive trains and prevent over-torque events in industrial equipment. This single-unit, set-screw mounted device is ideal for conveyors, motors, gearboxes, and other machinery where reliable torque limiting and quick adjustment are needed. Pack size: 1 unit. Remote torque adjustment is available via Nexen's air circuits, and a proximity sensor is included on all models to simplify monitoring in control systems.

✅ Bore size: 1.438 in (36.5 mm)
✅ Maximum static clutch torque: 6,230 in-lb (≈704 N·m)
✅ Minimum static clutch torque: 1,200 in-lb (≈135 N·m)
✅ Maximum torque (at 80 psi): 27,700 in-lb (≈3,125 N·m)
✅ Operating speed: up to 2,000 rpm
✅ Bore range: 0.625-2.938 in (16-74.7 mm)
✅ Remote torque adjustment: single or double air circuits
✅ Proximity sensor included (3 ft cord) on all models
💡 What is an open-air engaged torque limiter and how do you choose the right TL-A model for a machine? An open-air engaged torque limiter is a safety device that slips at a preset torque to protect gears and drive lines. - Match bore to your shaft: 0.625-2.938 in (16-74.7 mm)
- Ensure torque rating fits operating range with some margin; this family goes up to 27,700 in-lb @80 psi
- Decide on control method: remote adjustment via single or double air circuits
- Check sensor needs: proximity sensor included on all models; confirm cord length
Using the right torque limiter reduces downtime and protects gears while keeping production moving.