Describe the relationship between the Ocvirk number and the

Describe the relationship between the Ocvirk number and the applied load, and what is the suggested Ocvirk number in bearing design?

Solution

Solution :

The relationship between Ocvirk number and load is given by the formula

O_cv= F/{(mu*V*(aD/rb)}

Where F= applied load

mu =Absolute viscosity

V= Surface speed

a= clearance width

r=shaft radius

D= Diameter

b = Bearing length

The suggeste Ocvirk umber in bearing design is 30-90 depending on the load where 90 can be taken for severe laods and 30 can be taken for moderate loads.