Bearing Temperature Sensors

4B has an extensive range of CSA / ATEX / CE / IECEx / GOST-R approved hazard monitoring systems specifically designed for bucket elevators and conveyors in dust hazard environments. As an industry leader in developing high quality, innovative, and dependable electronic components, 4B can recommend the ideal system to suit your requirements and budget.

ADB bearing temperature sensor
  • Screw in positive mount installation
  • Grease zerk for bearing lubrication
  • Adjustable depth probes (50, 100, 200 & 300mm)
  • ADB81 - 1/4" BSPT mounting thread with cable entry
  • ADB2   - 1/8'' NPT mounting thread with conduit entry 
  • NTC or PT100 thermistor - continuous temperature monitoring
  • Hot Bearing Failure
WDB bearing temperature sensors
  • Screw in positive mount installation
  • Grease zerk for bearing lubrication
  • WDB8 - 1/4” BSPT with cable entry (brass body)
  • WDB2 - 1/8” NPT with conduit entry (steel body)
  • WDB1 (Obsolete, use WDB8) - 1/8” NPT with cable entry (brass body)
  • NTC version - continuous temperature
  • Pt100 version - platinum RTD - continuous temperature
  • PTC version - trip points from 50°C to 90°C - step response
  • For use with T400, T400 Elite, T500 Elite, Watchdog Super Elite control modules or PLCs
WDB7 temperature sensor
  • Surface mount type bearing sensors
  • Suitable for mounting onto flat surfaces and any type of machinery, gearbox, or casing with a M8 mounting bolt or screw
  • 1/2'' NPT conduit entry
  • NTC version - continuous temperature
  • PT100 version - platinum RTD
  • PTC version - trip points from 50°C to 90°C
  • Compatible with T400 Elite, T500 Elite or Watchdog Super Elite control modules
MDB bearing temperature sensor
  • Screw in installation
  • Grease zerk for bearing lubrication
  • Wiring connector
  • NTC version - continuous temperature
  • PT100 Version
  • PTC or contact version - trip points from 50°C to 90°C
  • Compatible with T400 Elite, T500 Elite or Watchdog Super Elite control modules
New Product
4b Milli-Temp bearing temperature sensor
  • Analog with 4-20 mA Output 
  • Screws Into Existing Grease Zerk Location
  • Integrated Zerk For Bearing Lubrication
  • Adjustable Depth Temperature Probe 
  • 304 Stainless Steel Body (1/2" NPT Conduit Entry)
  • Fixing thread 1/8" NPT