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Helical Compression and Extension Spring Terminology
- Ground Vehicle Standard
- J1121_200609
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
The following recommended practice has been developed to assist engineers and designers in the preparation of specifications for the major types of helical compression and extension springs. It is restricted to a concise presentation of items which will promote an adequate understanding between spring manufacturer and spring user of the major practical requirements in the finished spring. Closer tolerances are obtainable where greater accuracy is required and the increased cost is justified.
For the basic concepts underlying the spring design and for many of the details, see the SAE Information Report MANUAL ON DESIGN AND APPLICATION OF HELICAL AND SPIRAL SPRINGS, SAE HS 795, which is available from SAE Headquarters in Warrendale, PA 15096. A uniform method for specifying design information is shown in the TYPICAL DESIGN CHECK LISTS FOR HELICAL SPRINGS, SAE J1122.
Two types of helical springs are considered:
-
a
Hot coiled compression springs for general automotive use as well as for motor vehicle suspensions.
-
b
Cold wound compression and extension springs for general automotive use.
This recommended practice uses SI (metric) units in accordance with the provisions of SAE TSB 003.
Rationale
J1121 has been reviewed and updated to reflect the current industry Standards.
Recommended Content
| Ground Vehicle Standard | Helical Compression and Extension Spring Terminology |
| Aerospace Standard | SPRING, HELICAL, EXTENSION FOR LOADS BELOW 30 LBF |
| Aerospace Material Specification | Steel, Spring Wire 0.95Cr - 0.22V (0.48 - 0.53C) (SAE 6150) Annealed and Cold Drawn |
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| TABLE 1 | MATERIALS FOR HOT COILED COMPRESSION SPRINGS | |
| TABLE 2 | CROSS SECTION TOLERANCES FOR HOT ROLLED CARBON AND ALLOY STEEL ROUND BARS | |
| TABLE 3 | LENGTH TOLERANCES FOR HOT ROLLED CARBON AND ALLOY ROUND STEEL BARS | |
| TABLE 4 | COIL DIAMETER TOLERANCES | |
| TABLE 5 | FORMULAE FOR TOTAL COILS AND FOR NOMINAL SOLID LENGTH | |
| TABLE 6 | SPRING SOLID LENGTH TOLERANCES | |
| Unnamed Dataset 7 | ||
| TABLE 7 | NUMBER OF COILS TOLERANCE OF COMPRESSION SPRINGS | |
| TABLE 8 | NUMBER OF COILS TOLERANCE OF EXTENSION SPRINGS |
Issuing Committee
Materials, Processes and Parts Council
The Materials, Processes, and Parts Council (MPPC) promotes, directs, supervises and provides for the development of consensus SAE Technical reports. The council also conducts investigations for activities related to engineered materials, processes and parts used in the surface mobility industry. Participants in the SAE Materials, Processed and Parts Council include OEMs, suppliers, consulting firms, government and other interested parties.
Reference
| Number | Title |
|---|---|
| ASTMA227/A227M | This document is not part of the subscrption. |
| ASTMA228/A228M | This document is not part of the subscrption. |
| ASTMA229/A229M | This document is not part of the subscrption. |
| ASTMA230/A230M | This document is not part of the subscrption. |
| ASTMA232/A232M | This document is not part of the subscrption. |
| ASTMA401/A401M | This document is not part of the subscrption. |
| ASTMA679/A679M | This document is not part of the subscrption. |
| HS84 | This document is not part of the subscrption. |
| HSJ795 | This document is not part of the subscrption. |
| J1122_201608 | Helical Springs: Specification Check Lists |
| J217_201604 | Stainless Steel 17-7 PH Spring Wire and Springs |
| J230_201604 | Stainless Steel, SAE 30302, Spring Wire and Springs |
| J461_201801 | Wrought and Cast Copper Alloys |
| TSB003 | This document is not part of the subscrption. |
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