Ansi B 92.1 Pdf 38 [TESTED]

: The parts mate on the major diameter (the "tips" of the teeth), which is used when precise concentricity is required. Tolerance Classes The standard defines four classes of tolerance: 4, 5, 6, and 7

: This approach ensures that mating splines are interchangeable regardless of their individual tolerance classes, which is a significant advantage when one member is harder to produce than its mate. Inspection and Data Tables ansi b 92.1 pdf 38