- Standard No.
- GB/T 9239.32-2017
- Language
- Chinese, Available in English version
- Release Date
- 2017
- Published By
- 中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
- Latest
-
GB/T 9239.32-2017
- Replace
-
GB/T 16908-1997
- Scope
- This part of GB/T 9239 specifies the sole criterion for the balance of individual parts (shaft and mating parts) of a keyed rotor assembly. The intent is to fit all components being balanced so that when assembled they meet the balance tolerances and/or vibration limits of the rotor assembly as a whole. This standard specifies the use of half-keys when balancing individual components of keyed rotor assemblies. It also specifies the marking of the balanced components according to the keying criteria used. This standard applies to rotors that are balanced on a balancing machine, on the bearings of the rotor itself or on site. The key criterion is also applicable to the measurement of residual unbalance and/or vibration of rotors with keyways that have not been assembled with mating parts. In addition to rectangular or square flat keys of equal cross-section mounted parallel to the axis of the shaft, this standard also applies to keys mounted on tapered shafts, half-round keys, wedge keys, pins and other special keys. The principles of the half-key criterion also apply to specially shaped keys and special keys for positioning.
GB/T 9239.32-2017 Referenced Document
GB/T 9239.32-2017 history
- 2017 GB/T 9239.32-2017 Mechanical vibration—Rotor balancing—Part32：Shaft and fitment key convention
- 1997 GB/T 16908-1997 Mechanical vibration--Balancing--Shaft and fitment key convention
GB/T 9239.32-2017 Mechanical vibration—Rotor balancing—Part32：Shaft and fitment key convention has been changed from GB/T 16908-1997 Mechanical vibration--Balancing--Shaft and fitment key convention.