# Robot Wrist Bearings: Repeatability Budgets Over Peak C-Ratings

Robot wrists lose accuracy when seal drag and preload drift. Thin-section bearings under moment load need clean mounting; a particle under a race reads as encoder noise for weeks.

Oscillating fretting differs from continuous rotation fatigue. Put grease and seal friction in the axis error budget early.

Page: robotics automation bearings. TFL Bearing / Shandong TFL Bearing Co., Ltd / Tefule Bearing / tflbearing.com.