End Trucks & Bridge Drives

R&M's end trucks and bridge drives are designed for CMAA Class C & D and FEM ISO M5 & M6 duty cycles.

About End Trucks

End trucks carry the hoist and crane up and down the crane runway. R&M end trucks are available in a variety of top and underrunning designs and are specifically designed to suit your crane's application. 

RTN & RSN Top Running End Trucks

  • Heavy-duty tube or box construction
  • Double flanged wheels
  • Rotating axle drive wheel 
  • Standard wheels are flat tread ductile iron (approx. 280 BHN)
  • Standard rail sweeps and bumpers
  • Mates with GES Bridge Drives
  • Bolted structural connection plates
  • Single girder, double girder and bogie trucks available

RU & RH Underrunning End Trucks

  • Individual trucks adjustable for various flange widths
  • Constructed of structural steel
  • Ductile iron, single flange crown tread wheels (approx. 280 BHN)
  • Easy access to wheels for maintenance
  • Permanently lubricated anti-friction bearings
  • Equipped with bumpers and drop lugs
  • Patented track wheel option
  • Mates with GEK Bridge Drives 


About Bridge Drives

R&M's GEK and GES bridge drives achieve smooth acceleration and braking by utilizing a variable frequency drive as standard. Brake life is optimized as the inverter controls the speed of the motor to a stop before the brake sets. Fully enclosed gear units are specially designed in-house for crane applications to ensure many years of trouble-free operation.

GEK & GES Bridge Drives

  • Modular design includes gearbox, motor and brake for ease of maintenance
  • Totally enclosed, Class F, 30-minute inverter duty or two-speed motors
  • Motor brakes with asbestos-free friction material
  • Brakes are normally closed -if power fails, brakes will stop further travel
  • Anti-friction bearings supporting all internal bearings in the gearbox, extending bearing life
  • Output shaft utilizes external spline connections for increased durability


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