1 Scope
This specification is applicable to the calibration for vibrometer (acceleration) of rolling bearings
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this specification:
JJG 233-2008 Piezoelectric accelerometer
JJG 676-2000 Working Measuring Vibration Instruments
JJF 1185-2007 Calibration specification for vibrometer (velocity) of rolling bearings
GB/T 24610.1-2009 Rolling bearings - Measuring methods for vibration - Part 1: Fundamentals
JB/T 5314-2002 Rolling bearings - Measuring methods for vibration (acceleration)
JB/T 7047-2006 Rolling bearings - Specifications for vibration (acceleration) of deep groove ball bearings
For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
3 Terms
3.1 bearing vibration
all other motions with periodic variation characteristics except some inherent motions required by functions between bearing parts during the rotation of the bearing.
The bearing vibration measured in this specification refers to the radial vibration of the bearing outer ring at the intersection of the cross section of the raceway center and the outer cylindrical surface of the outer ring when the end surface of the bearing inner ring abuts against the spindle shoulder and rotates at a certain constant rotating speed and the outer ring does not rotate and bears a certain axial or radial load.
Introduction i
1 Scope
2 Normative references
3 Terms
4 Overview
5 Metering characteristics
6 Calibration conditions
7 Calibration items and methods
8 Expression of calibration results
9 Re-calibration interval
Annex A Example for uncertainty evaluation of calibration results of reference sensitivity value of vibrometer acceleration of bearings
Annex B Sleeve of accelerometer for calibration (recommended) (see Figure B.1)
Annex C Format for inside pages of calibration certificate (recommended)
