BS AU 225:1988 download.pecification for Dimensions of steering ball joints for commercia road venices.
1 Scope and field of application
BS AU 225 specifies the main dimensions of steering ball joints for commercial vehicles.
The ball joint is considered as being a single piece with its socket. Thus BS AU 225 covers the hall-socket assembly.
2 Dimensions
For dimensions, see the figure and table.
3 Designation
Example for the designation of a ball joint of nominal size S 4 D = 30 mm, where the angles a = 400 andfl2o°:
Ball joint Iso 7803 — 30 — 40 × 20.