GB/T 6404.2-2005: Acceptance code for gear units -- Part 2: Determination of mechanical vibrations of gear units during acceptance testing

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Scope

This Part of GB/T 6404 specifies the methods for determining mechanical
vibration of individually housed, enclosed, speed-increasing and speed-
reducing gear units. It specifies methods for measuring housing and shaft
vibrations, and the types of instrumentation, measurement methods and testing
procedures for determining vibration levels. Vibration grades for acceptance are
included.
It does not include torsional vibration measurements of a geared system.
This Part of GB/T 6404 applies only to a gear unit under test and operating
within its design speed, load, temperature range and lubrication for acceptance
testing at the manufacturer's facility.
The gear unit may be tested at another location if agreed upon and operated in
accordance with the manufacturer's recommendations.
Other standards on vibration evaluation may be required for measuring gear
unit vibration in field service.
This Part of GB/T 6404 does not apply to special or auxiliary drive trains, such
as integrated gear-driven compressors, pumps, turbines, etc., and power take-
off gears.
Note: Acceptance limits for tests of these types of equipment should be independently
specified. However, if negotiated, this Standard or other appropriate standards may
be applied to such equipment.
Special provisions may be required for vibration measurements: the type of
measurement and acceptance level should therefore be agreed between the
manufacturer and purchaser.

Basic Data

Standard ID	GB/T 6404.2-2005 (GB/T6404.2-2005)
Description (Translated English)	Acceptance code for gear units. Part 2: Determination of mechanical vibrations of gear units during acceptance testing
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J17
Classification of International Standard	21.200
Word Count Estimation	19,116
Date of Issue	2005-09-19
Date of Implementation	2006-04-01
Older Standard (superseded by this standard)	GB/T 8543-1987
Adopted Standard	ISO 8579-2-1993; IDT
Regulation (derived from)	Announcement of Newly Approved National Standards No. 12 of 2005 (total 86)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee
Summary	This standard applies to: a separate box closed reduction gear unit growth and mechanical vibration determination. Provisions of the box and shaft vibration measuring methods and measuring vibration levels the type of instrument, measurement methods and test procedures. Including the acceptance of vibration levels.