Allowable Pressure for Involute Splines

Type of joining

Operating condition

Non-hardened sides

Hardened sides

Allowable pressure p a [MPa]

Sliding

when loaded

adverse

-

3 to 10

medium

-

5 - 15

favorable

-

10 - 20

without loading

adverse

15 to 20

20 - 35

medium

20 - 30

30 - 60

favorable

25 - 40

40 - 70

non-sliding

adverse

35 - 50

40 - 70

medium

60 - 100

100 - 140

favorable

80 - 120

120 - 200