The MDB series is a range of bearing sensors manufactured to screw
directly into a bearing housing through the existing 1/4” BSPT threaded
grease zerk (can be installed in 1/8” NPT grease zerk fitting with an
adapter). Each sensor is fitted with a grease zerk to allow lubrication
of the bearing without the need for removal of the sensor. The sensor is
fitted with a M12 connector for use with a separately supplied cable
and socket assembly which can be attached connected directly to a PLC or
to a hazard monitoring system, such as 4B’s T500 Hotbus Elite, Watchdog
Super Elite, or T400 / T400 NTC Elite. The connections are not polarity
sensitive therefore special connection requirements are eliminated.
Four versions are available, a NTC thermistor model or PT100 type for
continuous temperature monitoring, and PTC or Contact thermistor models
with five trip points (60°C, 70°C, 80°C).