21.120.01

Shafts and couplings in general

21.120.10

Shafts

21.120.20

Couplings

21.120.30

Keys and keyways, splines

21.120.40

Balancing and balancing machines

21.120.99

Other standards related to shafts and couplings
BS ISO 7475:2002

BS ISO 7475:2002

Superseded Historical

Mechanical vibration. Balancing machines. Enclosures and other protective measures for the measuring station

€269.00

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BS ISO 20806:2004

BS ISO 20806:2004

Superseded Historical

Mechanical vibration. Criteria and safeguards for the in-situ balancing of medium and large rotors

€269.00

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BS ISO 1940-1:2003

BS ISO 1940-1:2003

Withdrawn Most Recent

Mechanical vibration. Balance quality requirements for rotors in a constant (rigid) state Specification and verification of balance tolerances

€316.00

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BS ISO 19499:2007

BS ISO 19499:2007

Superseded Historical

Mechanical vibration. Balancing. Guidance on the use and application of balancing standards

€316.00

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ASTM A503/A503M-25

ASTM A503/A503M-25

Active Most Recent

Standard Specification for Ultrasonic Examination of Forged Crankshafts

€58.00

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25/30509361 DC:2025

25/30509361 DC:2025

Active Most Recent

BS ISO 21940-14 Mechanical vibration — Rotor balancing Part 14: Procedures for assessing balance errors

€23.00

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NF E22-621, E22-621PR (01/2026)

NF E22-621, E22-621PR (01/2026)

Withdrawn Most Recent

Transmissions mécaniques - Assemblages frettés sur portée cylindrique - Fonction, réalisation, calcul

€106.00

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