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Vane Motor Product Guide

Brands We Repair:

  • Bosch
  • Denison
  • Moog
  • Racine
  • Rexroth
  • Vickers
  • and many more

What They Do:

A Hydraulic Vane Motor converts hydraulic energy
into rotating motion by being pushed by hydraulic
fluid. Vane motors operate much like a vane pump,
having a rotor, ring, and vanes. Fluid presses
against the vanes, creating rotary action that is
transferred to the shaft.

Hydraulic vane motors provide slow moving - high power
sources (LSHT) or fast moving low power sources.

Repair Procedures:

  • All depth of metering, timing notches, lubrication
    grooves and seal grooves are checked. Those that
    are not in tolerance are recut as needed.
  • The plate surface is treated with a nitrate coating
    that ensures low leakage, high torque capability,
    longer service life and even increased cycle times in
    many applications.
  • Every cam ring inside contour is refinished using a
    series of polishing wheels that follow the contour to
    smooth out even the slightest surface imperfections
    without changing the slope and dwell angles (that retain perfect vane stability). The case hardened ring has more than enough surface treatment to withstand this polishing.
  • After the surface is polished a severe duty proprietary coating is applied to the inside ring contour to reduce ring wear and lengthen its service life.
  • All vanes are checked with a micrometer for thickness. Each set is refinished as a group to ensure they are all the same length. Vane tip-to-ring surfaces are restored to provide a proper vane-to-tip wear pattern.
  • Every motor that Paragon remanufactures is assembled using new springs and rotors that ensure the proper load on the vanes as well as the proper vane slot dimensions.


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Paragon Technologies
Paragon Canada
Paragon Atlantic
Paragon Pacific

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