Rub Blocks for Belt Alignment

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Brass Rub Blocks
Alignment Sensors

Brass Rub Blocks are an instumental tool when monitoring for belt misalignment.  When a bucket elevator or conveyor becomes misaligned it causes a rubbing of the belt against the brass blocks, this friction causes a measurable increase in heat. 

Each Brass Rub Block is tapped for a threaded temperature sensor.  The brass material transfers any heat due to friction into the temperature sensor.  This provides an accurate warning of any belt misalignment issues that may be forming.  

Electro-Sensors Rub Block Door Assemblies allow for easy access and view of the belt, the brass pieces are independantly replaceable from the assembly allowing for easy maintenance of facility monitoring systems.  


  • Keep Conveyors and Elevators Aligned
  • Easily mount to Electro-Sensors Door Assemblies
  • Monitors for rises in temperature due to belt friction
  • Different model options to fit many applications

Rub Blocks are usually installed on each side of the belt in order to appropriatly monitor the belt for misalignment.  Elevators commonly have 2 head, 2 knee, and 2 tail rub blocks.  This allows for proper monitoring of the bucket elevator, on conveyors they can be installed in different quantities depending on the length of the conveyor.