Recommended values:

d = (0.2 -0.3) D

D 1 = (1.5 - 2) D - for steel and cast steel

D 1 = 2.5 D - for gray cast iron

Active Pin Length

The pin active length l f is a length reduced by chamfering and filleting. The active length usually carries loading.

Formulas

Shear stress check

Contact pressure check

Interpretations of symbols in metric units:

τ	shear stress [MPa].
τ A	allowable shear stress [MPa].
d	pin diameter [mm].
p 1	pressure in the draw rod [MPa].
p 2	pressure in the sleeve [MPa].
p 1A	allowable pressure in the sleeve [MPa].
p 2A	allowable pressure in the draw rod [MPa].
D	draw rod diameter [mm].
D 1	sleeve diameter [mm].

Interpretations of symbols in English units:

τ	shear stress [psi]
τ A	allowable shear stress [psi]
d	pin diameter [in]
p 1	pressure in the draw rod [psi]
p 2	pressure in the sleeve [psi]
p 1A	allowable pressure in the sleeve [psi]
p 2A	allowable pressure in the draw rod [psi]
D	draw rod diameter [in]
D 1	sleeve diameter [in]