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Sliding fit

Normal typeISO/R 773 (JIS B 1301)A fit of N9 on the shaft and JS9 in the hub. It is the most common combination and the place to start when you are unsure.Sliding typeISO/R 773 (JIS B 1301)A fit of H9 on the shaft and D10 in the hub. Choose it where the hub has to slide along the shaft.Interference fit typeISO/R 773 (JIS B 1301)A fit of P9 both on the shaft and in the hub. Choose it where there is shock or reversing rotation and play has to be avoided.

Keyway, sliding fit

Diagram: Keyway Sliding fit
bxhbrtApplicable shaft diameterThread size
Nominal sizeb1Deviation(H9)b2Deviation(D10)t1Nominal sizet2Nominal sizet1, t2Deviation

Notes

  • References
    • JIS B 1301
Keyway — Sliding fit — Keyway Dimensions | Updraft - Mechanical Engineering Calculators