GB/T 4201-1984
Replaced
GB/T 9239.21-2019
Active
National standards
GB/T 9239.21-2019 Mechanical vibration—Rotor balancing—Part 21:Description and evaluation of balancing machines
GB/T 9239.21-2019 Mechanical vibration—Rotor balancing—Part 21:Description and evaluation of balancing machines
Price:
$ 149
Basic Information
Standard Code:
GB/T 9239.21-2019
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Mechanical vibration, impact equipment, and dynamic balancing machines
ICS Name:
Balancing and balancing machine
Publish Date:
2019-10-18
Implement Date:
2020-05-01
Pages:
52 pages
Scope
This part of GB/T 9239 specifies the evaluation requirements for the performance of balancing machines used for balancing rotating components through the following tests:
a) Minimum achievable residual imbalance quantity test, Umar test;
b) Imbalance reduction rate test, URR test;
c) Single-sided balancing machine random imbalance interference test;
d) Compensator test.
Development Information
Replace the following standards
Referenced Standards
ISO 1925
Adopt standards
ISO 21940-21:2012
Related Standards
GB 12977-1991
Replaced
GB 12977-1991 Balancing machines—Enclosures and other safety measu res
GB/T 6444-1995
Replaced
GB/T 6444-1995 Mechanical vibration—Balancing vocabulary
GB/T 6557-1999
Replaced
GB/T 6557-1999 Mechanical vibration—Methods and criteria for the mechanical balancing of flexible rotors
GB/T 19874-2005
Replaced
GB/T 19874-2005 Mechanical vibration—Susceptibility and sensitivity of machines to unbalance
GB/T 9239.1-2006
Replaced