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BS 3537:1979

Current
Current

The latest, up-to-date edition.

Specification for gudgeon pins up to 200 mm diameter
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-01-1979

Foreword
Cooperating organizations
Specification
1. Scope
2. References
3. Gudgeon pin designs
4. Basic design features
5. Plain pins, end face located
6. Plain pins, not end face located
7. Chamfer locking with round wire circlips
8. Button or end pad pins
9. Pins secured by clamp bolts
10. Pins secured by set screw
11. Materials
12. Case hardening
13. Quality requirements
14. Measuring procedures
15. Magnetic flaw detection
Appendix
A. Typical material specifications (with oversea
    equivalents)
Tables
1. Dimensions for outside diameter
2. Surface texture on outside diameter
3. Limits on inside diameter
4. Concentricity of bore to outside diameter (FIM)
5. Surface texture of machined finishes in bores
6. Inside diameter end chamfers
7. Outer end chamfers or radii
8. Limits on length
9. Runout of end faces
10. Surface texture on ends
11. Material classification by mechanical properties
12. Finished case depths
13. Diameter reduction at pin ends
Figures
1. Plain gudgeon pin
2. Form tolerance
3. Alternative outer edge forms
4. Plain circlip location
5. Chamfer locking with round wire circlips
6. Button or end-pad type pin
7. Clamp groove pins
8. Set screw location
9. Diameter reduction at pin ends
10. Measurement of outside diameter
11. Measurement of inside diameter and
     concentricity/radial wall thickness
12. Measurement of length
13. Measurement of runout of end faces
14. Measurement of length and runout of end faces
     (alternative combined method)
15. Magnetization: conducting bar

Dimensions and design features for gudgeon pins (wrist pins) of 10 mm to 200 mm diameter for use in reciprocating internal combustion engines.

This British Standard specifies dimensions, surface textures and other features of design for various types of gudgeon pins, sometimes referred to as piston pins or wrist pins, all of which are case hardened. They are suitable for use in two and four stroke cycle spark and compression ignition reciprocating internal combustion engines. The standard covers pins of 10 mm to 200 mm diameter.

Typical applications of various types of gudgeon pins are given.

NOTE Unless otherwise specified, all dimensions in this standard are in millimetres.

Committee
MCE/14
DevelopmentNote
Supersedes 77/78402 DC (07/2005) Reviewed and confirmed by BSI, December 2012. (11/2012)
DocumentType
Standard
Pages
18
PublisherName
British Standards Institution
Status
Current

BS 4124-2(1968) : LATEST METHODS FOR NON-DESTRUCTIVE TESTING OF STEEL FORGINGS. MAGNETIC PARTICLE FLAW DETECTION
BS 970-3:1971 Specification for wrought steels in the form of blooms, billets, bars and forgings Steels for case hardening
BS 891-1:1962 Method for Rockwell hardness test Testing of metals
BS 1134-1:1972 Method for the assessment of surface texture Method and instrumentation
BS 4069(1966) : LATEST
BS 970-2:1970 Specification for wrought steels in the form of blooms, billets, bars and forgings Direct hardening alloy steels, including alloy steels capable of surface hardening by nitriding
BS 427-1:1961 Method for Vickers hardness test Testing of metals

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