محاسبه‌گر نیروی پرس فیت بلبرینگ

For the stated same-material solid-shaft/thick-ring elastic model, interface pressure comes from Lamé compliance and F = p × π × d × L × μ.

D_r must be the outer material boundary of the fitted ring itself, not the outside diameter of an assembled rolling bearing.

Use a value validated for the actual material pair, finish, lubricant, speed and pressure. Force is directly proportional to μ, so generic oiled/dry labels are insufficient for press sizing.

It is only δ/(αd): the uniform temperature rise that expands the bore by exactly the interference. It includes no assembly clearance or heat-loss allowance. Follow manufacturer limits.

No. Entry geometry, breakaway friction, misalignment, roughness, plasticity and edge effects are omitted. Apply an engineering process allowance backed by actual data.

Yes — apply mounting force only to the ring with the interference fit. Do not transmit mounting force through the rolling elements; use the bearing manufacturer’s mounting instructions.