Bearing Temperature Sensors & Monitoring Systems
Overheated bearings are one of the main risk factors for dust explosions in bucket elevators and need to be closely monitored.
4B offers a range of Atex, CSA and IECEx certified bearing temperature sensors and compatible monitoring systems.
Bearing Temperature Sensors

Certifications:

Part numbers:
WDB810V3AI
WDB811V3AI
WDB812V3AI
WDB813V3AI
WDB814V3AI
WDB815V3AI
WDB816V3AI
WDB817V3AI
WDB818V3AI
WDB819V3AI
WDB Series Bearing Sensors
The WDB bearing temperature sensor screws directly into a bearing housing through the
existing grease zerk thread. Each sensor is fitted with a grease
zerk to allow lubrication of the bearing without the need for removal of the sensor.
- PTC Thermistor with fixed pre-set trip points from 50C to 120C
- NTC Thermistor for continuous measurement up to 110C
- Long term reliability
- Easy installation – replaces existing grease nipple
- Extensive range of PTC sensors available from 50C to 120C
- For use with T400, T400 Elite, T500 Elite or Watchdog Elite control modules
- WDB Series Bearing Sensors Datasheet

- ATEX Certificate

- Go to Electronics Manuals
- Request more information

Certifications:

Part numbers:
WDB70V3AI
WDB71V3AI
WDB72V3AI
WDB73V3AI
WDB74V3AI
WDB75V3AI
WDB79V3AI
WDB Lug Style Series Bearing Sensors 
The WDB Lug Style Sensor bolts directly onto a bearing housing, motor, gearbox, or machine casing for continuous temperature monitoring.
- 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
- Continuous temperature monitoring
- 1/2'' NPT conduit entry
- Compatible with T400 Elite, T500 Elite or Watchdog Elite control modules
- Bearing Temperature Sensors Datasheet

- Go to Electronics Manuals
- Request more information

Certifications:

Part numbers:
MDB810V3AI
MDB812V3AI
MDB813V3AI
MDB814V3AI
MDB819V3AI
MDB832V3AI
MDB833V3AI
MDB834V3AI
MDB Series Bearing Sensors 
- Screw in installation
- Grease zerk for bearing lubrication
- Wiring connector
- Continuous temperature monitoring
- NTC version -10C to +105C
- PTC
- Pt100 -10C to +105C
- Compatible with T400 Elite, T500 Elite or Watchdog Elite control modules

Certifications:

Part numbers:
ADB810V3AI
ADB810V3AI/5
ADB810V3AI/5/D12
ADB810V3AI/5/D2
ADB810V3AI/5/D8
ADB810V3AI/D12
ADB810V3AI/D2
ADB810V3AI/D8
ADB819V3AI
ADB819V3AI/5
ADB819V3AI/5/D12
ADB819V3AI/5/D2
ADB819V3AI/5/D8
ADB819V3AI/D12
ADB819V3AI/D2
ADB819V3AI/D8
ADB Series Bearing Sensors 
The ADB sensor screws directly into a bearing housing through the
existing grease zerk thread. Each sensor is fitted with a grease
zerk to allow lubrication of the bearing without the need for removal of the sensor.
- Screw in positive mount installation
- Grease zerk for bearing lubrication
- Adjustable depth (2", 4", 8" probes)
- 1/2" NPT conduit entry (steel body)
- NTC version - provides continuous temperature monitoring
- Bearing Temperature Sensors Datasheet

- Go to Electronics Manuals
- Request more information
Bearing Temperature Monitoring Systems
The systems below are all compatible with our bearing temperature sensors:

Certifications:

Part numbers:
T5004V4AI
T5004V46AI
T500 Elite
- Serial Network for Continuous Remote Sensor Monitoring
- Preventative maintenance tool fully compatible with existing systems
- Monitors bearing temperature and belt alignment
- Accepts input signals from a total of 256 sensors
- User adjustable trip-points for alarm & shut-down
- "BUS VIEW" Easy-to-use graphical monitoring software available
- Utilises the "HotBus" communications system
- T500 Elite Datasheet

- Coors Casestudy - An Application in the Brewery Industry

- Go to Electronics Manuals
- Request more information

Certifications:

Part numbers:
T4004V4AI
T4004V46AI
T400 Elite
- Fixed Trip Point Bearing Temperature Monitoring System
- Microprocessor controlled unit - monitors 8 zones with up to 6 bearings in each zone
- Status LED's provide quick location of the hot bearing condition
- Easy installation – no set up!
- Extensive range of PTC sensors available from 50∫C to 120∫
- Sensors replace existing grease points without loss of maintenance function
- Alarm mute - with automatic time delayed reactivation
- T400 Elite Datasheet

- ATEX Certificate

- Go to Electronics Manuals
- Request more information

Certifications:

Part numbers:
WDC3NV4AI
WDC3NV46AI
Watchdog
- Multi-Function Hazard Monitor
- Belt speed/alignment, bearing temperature, pulley alignment, blockage detection
- Full Microprocessor control
- Fully programmable via keypad to optimise elevator operation
- Simple, reliable, consistent
- Watchdog Datasheet

- CASE STUDY: Watchdog at the Port of Tilbury Grain Terminal - Download as pdf

- Go to Electronics Manuals
- Request more information


Download complete electronics catalogue (12pp) 