What‘s the difference between ball screw accuracy C0 C1 C3 C5 C7 C10?

According to the standard of JIS,we classified our lead accuracy through E,e,e300 and e2π,four main regulations.As figure 1.3.1 ~ 1.3.3 shown in below,all the definition and tolerance are specified.To test the accumulated travel deviations for grade C7 and C10,the tolerance will be chosen in random 300mm of useful length and evaluated if it is qualified with the e300 table of 1.3.3.

Among the factors that cause feed accuracy errors, lead accuracy and feed system rigidity are the key points for review, while other factors such as heat deformation due to temperature rise as well as assembly accuracy for the guiding surface, etc. should also be considered.

■ Examples of ball screws accuracy classes for different uses

Linear Ball Bearing from China, Linear Ball Bearing Manufacturer & Supplier - ALM (autolinearmotion.com)