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Trailer Components Terminology

Hub Assembly


trailer drum brakes
1Backing Plate
2Brake Pads
3Brake Adjuster
4Tension Springs
5Brake Shoe Pivot
6Wheel Cylinder
7Tension Springs
trailer disc brakes
1Caliper Mounting Bracket w/Mounting Bolts
2Inverted Flare Brake Line Fitting
3Brass Bleeder Valve
4Caliper Assembly
5Brake Pad Set
6Hub & SS Rotor Assembly, w/bearings
7SS Bolts


trailer wheel bolt patterns


trailer axles


trailer spindles

Eliminator Torsion Axles

Suspension travel and shock absorption are handled by four cords inside the axle housing. As the wheel moves up or down, the rubber cords compress, offering a progressive rate of resistance. With a progressive "spring" rate, small bumps are handled by a soft initial rate, while larger bumps use a stiffer rate. This makes for a smoother ride over all types of roads.

trailer torsion axle diagram


trailer parts diagram

Springs & U-Bolts

trailer leaf springs and U-bolts

Spring Hangers

trailer spring hangers

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