GB/T 9239.12-2021

Active

Mechanical vibration—Rotor balancing—Part 12: Procedures and tolerances for rotors with flexible behaviour

机械振动转子平衡第12部分：具有挠性特性的转子的平衡方法与允差

Standard Type

GBT

ICS

21.120.40

CCS

J04

Status

Active

Issue Date

2021-08-20

Implementation

2022-03-01

Centralized Committee

国家标准委

Issuing Authority

国家市场监督管理总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies procedures and permissible residual unbalance tolerances for balancing rotors that exhibit flexible behavior during operation, where deformation due to rotational speed affects balance. It is applied in the design, manufacturing, and maintenance of high-speed rotating machinery such as turbine rotors, large electric motor armatures, and centrifugal compressors, where rotor flexibility must be accounted for to ensure safe and stable operation.

Related Standards

GB/T 12217-2005 Machines-Shaft heights GB/T 1569-2005 Cylindrical shaft ends GB/T 1570-2005 conical shaft ends GB/T 10081-2005 Straight-sided internal splines Length series GB/T 1563-2003 Taper keys--Cross section dimensions of keyways GB/T 10043-2003 Clutch--Classification GB/T 10042-2003 Clutch--Terminology GB/T 1567-2003 Square and rectangular thin keys

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.