Bearing temperature sensor
ATEX, CSA, IECEx | WDB, ADB, MDB 4B Braime Elevator Components

The WDB, MDB & ADB Series bearing temperature sensors are designed to screw directly into an existing grease zerk fitting on a bearing housing. Each sensor is fitted with a grease nipple to allow lubrication of the bearing without
the need for removal of the sensor.

The WDB series is available with either a PTC thermistor with various factory set trip points or a NTC thermistor with a user adjustable trip point, or as a Pt100 RTD version.

The ADB series have been designed to allow the depth of the sensor to be
adjustable depending on your application. Three standard versions are available with probe lengths of 2, 4 and 8 inches (other lengths available for special order). The ADB style sensors are available with a
standard NTC thermistor for 4B's Hotbus and Watchdog systems, or a 4-wire Pt100 - RTD type for PLC and DCS systems.

The MDB series is a range of bearing sensors manufactured to screw directly
into a bearing housing through the existing 1/4" BSP threaded grease zerk (can be installed in 1/8" NPT grease zerk fitting with an adapter). The sensor is fitted with a M12 connector for use with a separately supplied cable and socket assembly which can be connected directly to a PLC or to a hazard monitoring system, such as 4B's T500 Hotbus Elite, Watchdog Elite, or T400 Elite. The connections are not polarity sensitive therefore special connection requirements are eliminated.