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Blackmer HRB-GX Gear Reducer Rebuild Service


Blackmer HRB-GX Gear Reducer Rebuild Service for obsolete Blackmer GX Series pumps.


Parts Breakdown GX4B Pump HRB-GX Gear Reducer

How it Works:

  • Ship your equipment to us
  • Receive a full repair assessment
  • We rebuild your equipment using genuine parts
  • We lube and refill oil levels to manufacturer recommended specifications
  • Your equipment is shipped back to you


We offer rebuild services for obsolete Blackmer gear reducers and pumps.  Send your gear reducer or pump to us for a full assessment evaluation.  Our professional technicians will rebuild your gear reducer using genuine Blackmer replacement parts, including a fresh paint job.

We rebuild gear reducers, pumps, meters, and more.  Ask today about our onsite service contracts for full system assessments, meter calibration, and maintenance.  We travel the continental US.

Example SOW:

Rebuild customer supplied HRB-GX gear reducer with new genuine Blackmer OEM parts to include…

  • All CWI labor and shop materials required to diagnose, rebuild, and test broken gear reducer
  • Replace (1) damaged motor-side key shaft and pinion gear w/ new Blackmer OEM parts
    • Includes (1) new key for reassembly to motor
  • Replace (2) worn key and pinion shaft bearings w/ new Blackmer OEM parts
  • All necessary Blackmer OEM oil seals, o-rings, and gaskets required to complete rebuild
    • (1) input shaft oil seal, (1) output shaft oil seal
    • (1) main cover gasket, (1) blind closure plate gasket, (1) input closure plate gasket
    • New gear reducer oil filled to manufacturer required level specs

*We do not provide any warranty for rebuilt gear reducers.