Friction concentric rotating cylinders
Friction concentric rotating cylinders
(OP)
Hello All,
I am trying to calculate the friction (torque) between two concentric cylinders.
Inside one is roating at 750 rpm, diameter is 826 mm and diametrical clearance is 4 mm.
Outside cylinder is static. Length 98 mm.
I guess it should be quite large but couldn't find any reference.
Maybe you can give some advice or reference.
Thanks in advance.
I am trying to calculate the friction (torque) between two concentric cylinders.
Inside one is roating at 750 rpm, diameter is 826 mm and diametrical clearance is 4 mm.
Outside cylinder is static. Length 98 mm.
I guess it should be quite large but couldn't find any reference.
Maybe you can give some advice or reference.
Thanks in advance.





RE: Friction concentric rotating cylinders
RE: Friction concentric rotating cylinders
This is a classic hydrodynamic lubrication problem.
Almost any handbook in mechanical engineering will give a nomograph for the problem.