40mm square trailer axles are generally used on smaller, single axle trailers with brakes. (1000kg max)
Square axles are used on smaller braked trailers as round axles can spin in the u bolts when the brakes are applied.
DIAMETER: 40mm SQUARE
RATING: 1000kg PER AXLE
STEEL: SOLID DURAFLEX STEEL
BEARING TYPE: A TYPE (HOLDEN)