This standard specifies the size, material, technical requirements, inspection, packaging, storage and transportation of the ball studs in the ball joint mechanical connection device of articulated passenger cars. This standard applies to the ball studs in the ball hinge mechanical connection device of articulated passenger cars.
GB/T 7726.3-1998 history
2009GB/T 7726-2009 Mechanical connections of articulated bus
1998GB/T 7726.3-1998 Mechanical connections of articulated bus. Ball pin
GB/T 7726.3-1998 Mechanical connections of articulated bus. Ball pin was changed to GB/T 7726-2009 Mechanical connections of articulated bus.