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Calculating the minimum hub diameter Dm

After selecting a suitable locking element it is important to establish the outside diameter of the hub that will withstand the stresses caused by the high pressures exerted by the locking element.

The calculation below is for static conditions and considers only the stresses generated by the locking element.

where
Dm     = outside diameter of hub (mm) 
D         = outside diameter of locking element (mm) 
Rs 0.2 = yield stress for permanent elongation of 0.2% (N/mm²)
Pm      = pressure applied by locking element on the hub (N/mm²)
C         = design coefficient in respect to the hub profile (see below) 

Please consult our technical department for assistance if required