Accuracy

According to the International Standard.the Accuracy of SL Bearing can be divided into five grades normal Grade 0,High Grade 6,Accurate grade 5,Over Accuracy Grade 4,and over the 4th grade2.
The grade of tolerance is in accordance with the standard of GB/T307.
The Contrast of Bearing Accuracy See the table.

Country Standard Accuracy Grade
China GB307.1 0 6 5 4 2
International Standard
Organization
ISO 0 6 5 4 2
Sweden SKF P0 P6 P5 P4 P2
Germany DIN P0 P6 P5 P4 P2
Japan JIS P0 P6 P5 P4 P2
American ANSI ABEC1 ABEC3 ABEC5 ABEC7 ABEC9