This is the second of two reports. See Push/Pull Method for Preloading 2-TS Spindles: Why Preload? Preload force is very sensitive to the preload dimensional setting. The setting tolerance for a 2-TS ...

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°.

Spindles designed for machine tool applications, such as milling, grinding and turning, require the bearings to be set in preload to meet speed, stiffness and accuracy requirements. More importantly, ...