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Hydraulic Drum Brakes

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Hydraulic Override Brakes

9″ Hydraulic Drum Brakes fitted to 40mm Square and 45mm square Axles.

Hydraulic drum brake axle has a 1450kg rating for a single axle or 2000kg for a tandem axle setup.

Axle ratings as follo00ws

40mm and 45mm Axles are ideal for override trailers up to 200cm or 2 meters. Axle flex occurs in longer axles. Axle flex, in turn, causes vibration fatigue.

Video: Vibration Fatigue in Caravans and Boat Trailers.

Trailers wider than 2 meters use 45mm Square axles. Stronger axles carry their load better and as such do not suffer axle fatigue.

Finally, this article is also a good read. Why U-bolts may be the Major Cause of Accidents.