JB/T 9921.1-2017
Bearing inner ring groove superfinishing machine and bearing outer ring groove superfinishing machine Part 1: Accuracy inspection (English Version)

Standard No.

JB/T 9921.1-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

工业和信息化部/国家能源局

Latest

JB/T 9921.1-2017

Replace

JB/T 9921.1-1999

JB/T 9921.1-2017 history

• 2017 JB/T 9921.1-2017 Bearing inner ring groove superfinishing machine and bearing outer ring groove superfinishing machine Part 1: Accuracy inspection
• 1999 JB/T 9921.1-1999 Superfinishing machine for groove of bearing inner rings and superfinishing machine for groove of bearing outer rings Accuracy inspection