• AXLE CALCULATOR
• 4″ DROP / OVERLAY AXLE DIAGRAM

Linked below are most of the stud patterns found in the trailer industry.

View Stud Patterns

Linked below are most of the bearing combinations in the trailer industry.

View Bearing Numbers

TRI AXLE ROCKER ROLLER

OFF-ROAD REBOUND SUSPENSION

EYE TO EYE ( SHACKLE) 

EYE TO SLIPPER

ROCKER SPRING

Information for manufacturers and summarized construction requirements for trailers less than 4.5 tonnes aggregate ..

Follow the link for more details.

Vehicle Standards Bulletin VSB1