BS 7772:1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Plain bearings. Measurement of wall thickness of thin-walled half-bearings and thin-walled bushes
Hardcopy , PDF
30-11-2007
English
15-08-1994
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Committees responsible
National foreword
Specification
1 Scope
2 Normative references
3 Definition
4 Symbols and units
5 Purpose of checking
6 Checking methods
7 Requirements for measuring equipment for the
contact method
8 Checking of measuring equipment
Annexes
A (normative) Indication of the checking method on
drawings
B (informative) Determination of uncertainty of
measurement
Tables
1 Symbols and units
2 Measuring line distances ac
3 Radius for measuring the inside surface and
checking load
4 Limiting values for the measuring equipment
B.1 Test results
Figures
1 Total wall thickness, stot
2 Measuring principle of wall thickness measurement
3 Position of measuring lines
4 Three-line measuring scheme for half-bearings with
Do < or = 150 mm
5 Three-line measuring scheme for unsplit or wrapped
bushes with Do < or = 150 mm
6 Six-point measuring scheme for half-bearings with
B < or = 50 mm and Do < or = 80 mm
7 Ten-point measuring scheme for half-bearings with
B < or = 50 mm and Do < or = 150 mm
8 Ten-point measuring scheme for half-bearings with
B < or = 90 mm and Do < or = 150 mm
9 Three- or six-point measuring scheme for unsplit or
wrapped bushes with D0 < or = 150 mm
A.1 Dimensioning for unequal wall thickness
Describes the checking methods and measuring equipment used for measuring the total wall thickness of thin walled half bearings and thin walled bushes in the finished state. Coverage includes purpose of checking, checking methods, checking of measuring equipment, and requirements for measuring equipment for the contact method. Also gives annexes, tables, diagrams, and symbols and units.
| Committee |
MCE/12
|
| DevelopmentNote |
Reviewed and confirmed by BSI, March, 2004. (11/2004) Also numbered as ISO 12306 Supersedes 92/78677 DC (10/2005)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 4480-8:1984 | Plain bearings: metric series Specification for dimensions, tolerances and methods of checking of thin-walled flanged half bearings |
| BS 4480-5:1979 | Plain bearings: metric series Dimensions, tolerances and methods of checking thin-walled half bearings |
| BS 7679:1993 | Plain bearings. Quality control techniques and inspection of geometrical and material quality characteristics |
| BS 4480-4:1979 | Specification for plain bearings: metric series Dimensions, tolerances and methods of checking wrapped bushes |
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