About End Trucks

End trucks carry the hoist and crane up and down the crane runway. R&M end trucks and bridge drives are available in a variety of top and underrunning configurations that are custom-designed to fit your crane's application. 

RTN & RSN Top Running End Trucks

• Mates with GES Bridge Drives
• 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
• Bolted structural connection plates
• Single girder, double girder and bogie trucks available

RU & RH Underrunning End Trucks

• Mates with GEK Bridge Drives
• Individual trucks adjustable for various flange widths
• Constructed of structural steel
• Patented track wheel option
• 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

About Bridge Drives

Bridge drives control the motion of the end trucks along the crane’s runway. R&M's GES (top running) and GEK (underrunning) bridge drives achieve smooth acceleration and braking by using a variable frequency drive (VFD), which comes standard. Brake life is optimized as the inverter controls the speed of the motor to a stop before the brake sets. Motor and gear pairs are specially designed in-house for crane applications to ensure maximum efficiency and many years of trouble-free operation.

Our GEK & GES Bridge Drives Features:

• 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 support all internal bearings in the gearbox, extending bearing life
• Output shaft utilizes external spline connections for increased durability