The primary job of an engine bearing is to establish a low-friction interface for a rotating shaft. Most bearings today are half-round assemblies used around crankshafts, for example. While you might ...

Heavy press fits should be avoided. Accuracy of mounting surfaces should be equal to accuracy of mating bearing surface. Misalignment for low torque and running accuracy should not exceed 1/4°.

Much time and attention is focused on choosing the best bearings for linear motion tasks. But what about the components that guide the application and keep everything in line? Shafting and rails are ...