Bearing Sensors

Bearing temperature sensors for rotating machinery protection

Bearing temperature sensors give operators an early warning when lubrication, alignment, load, or cooling problems start driving bearing metal temperature upward.

Thermometrics builds RTD and thermocouple bearing sensors for motors, turbines, turbo machinery, pumps, generators, and other rotating equipment, with case styles, lead exits, armor, and cable routing selected around the actual housing geometry and clearance limits.

In turbine and turbo machinery service, bearing temperature is a protection signal as much as a process reading. Sensor fit, contact pressure, lead protection, and routing through the frame all affect how quickly a protection system can identify lubrication loss, rub, overload, or cooling issues before bearing damage progresses.

Common Configurations

• RTD sensing in platinum 100 ohm (Pt100) or platinum 1000 ohm (Pt1000), or thermocouple sensing
• Single or dual element builds
• Case styles A, B, C, and D with top, side, or rear lead exit options
• Lead wire options for abrasion, heat, and routing demands

Key Advantages

• Spring-loaded sensing formats to maintain thermal contact at the measurement point
• 3-wire RTD options compatible with common PLC and DCS analog input schemes
• High-accuracy RTD and thermocouple-based builds for predictive maintenance and protection
• Turbine and turbo machinery builds for bearing metal temperature monitoring, generator protection, and rotating-equipment shutdown logic