JOST part description

GR SET IB

Design Features

• Internal gearbox protects gears and prevents shaft misalignment.

• Cover and bushings sealed to keep moisture out.

• Double "D" style shaft allows crank force to go directly into the gearbox, not torquing the bolt.

• 10 bolt mounting pattern adds mounting rigidity.

• Reinforcing strap at the bottom of the upper housing for added strength.

• Austempered ductile iron gears will not wear out.

Maximum Static Load Rating* 160,000 lbs

Rated Lift Capacity**: 55,000

Side Load Capacity*: 29,000 per set

*When properly braced on a trailer.

**With 100ft-lbs input torque.

Gear Ratio Low Gear: 32 Turns = 1˝ T

ravel High Gear: 3.5 Turns = 1˝ Travel

JOST International manufacturers trailer landing gear at our manufacturing facility in Grand Haven, Michigan and over the past 20 years we have supplied millions of sets to our valued OEM partners and their end users.

The difference between the JOST landing gear design and older competitive products is obvious right from the first glance: there is no external gearbox! The gearing mechanism is an integral part of the sturdy leg column, which protects the gearing from abuse and most importantly minimizes significantly water intrusion, which is a very damaging element to landing gear with external gear housings.

Our Magnum design keeps the mechanical advantages offered with the internal gear configuration and adds even more protection against the damage that water and road chemicals create. The gearbox on each leg is completely filled with a premium all weather lubricant- the legs are completely sealed to keep the grease in and everything else out. The elevating screws are completely encased by a grease tube; each time the legs are extended and retracted the screw receives a fresh coating of grease.

Extended Length 48.625
Retracted Length 31.625
Upper Leg 24.94

Product Attributes

Lube Type Standard
Mounting Style Inside Mount
Footwear Size 10 in. x 10 in.
Footwear Type Sand Shoe
Travel Size 17 in.

JOST® is a global leader in manufacturing safety-critical components for commercial vehicles. Its products are divided into three categories—vehicle interface, handling solutions, and maneuvering—and are manufactured in its different production sites located in more than 20 countries across five continents. Since it started as a humble forge of ball bearing turntables in 1952, JOST has grown exponentially and has become the leading supplier of landing gears and fifth wheel couplings around the world. Currently, there are five brands under JOST, including ROCKINGER, JOST, TRIDEC, Quicke, and Edbro. All these brands are renowned names in the industry, thanks to their high-quality products and continuous innovation.

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