Name of Standards Organization: Bureau of Indian Standards (BIS) Division Name: Metallurgical Engineering Section Name: Wrought Steel Products (MTD 4) Designator of Legally Binding Document: IS 4072 Title of Legally Binding Document: Steel for Spring Washers Number of Amendments: 2 Equivalence: Superceding: Superceded by: LEGALLY BINDING DOCUMENT

This paper is on spring washers. Springs washers have three basic types: Belleville, curved or cylindrically curved, and wave [2-3]. Belleville washers have truncated cone or spherical shapes and are also called as conical or cupped spring washers. Belleville washers provide a small deflection range and have a high load bearing

IS 3063 : 1994. ( Reaffirmed 2004 ). Indian Standard FASTENERS-SINGLECOTLRECTANGULAR SECTIONSPRINGLOCKWASHERS- SPECIFICATION (Second Revision ) 

1.1 This standard lays down the requirements for plain washen of the following types: a) Machined washers, for precision and semi-precision grade of general purpose bolts and screws, in the diameter range 1-7 to 155 rom; b) Punched washers, type A, for black grade general purpose bolts and screws, in the diameter range I-ato 52 rom; and

This standard specifies requirements for the materials, dimensions, tolerances, and permissible stresses for conical disc conical spring washers, for example). 2 Concept Conical disc springs ('springs', for short) are annular coned elements that offer resistance to a compressive force applied axi- ally. They may be designed as single discs

1 scqpe this standard covers requirements for single coil rectangular section spring lock washers suitable for use with bolt/nut assemblies involv- ing fasteners of property class 5.8 or less in the size range 2 to 100 mm. 2 references the following indian standards are necessary adjuncts to this standard:

The type and magnitude of the load to which a spring washer will be sub-jected and the reactive force it will be required to exert are the primary factors that determine the type of spring washer best suited to a specific application. This range of deflection,or “spring travel”,is an important element of spring washer design.

mATERIALS. >>> DImENSIONAL ChARACTERISTICS screw dia. dimensions mm outside diameter mm thickness mm total height mm weight. TREP®plus d. D.

Same temperature characteristics as standard bolt / nut. • Reusable – in addition, Nord-Lock washers do not affect the reusability of fasteners.

Metric DIN 137 Type A and B Spring Lock Washers are specialty spring lock washers – Unlike standard split helical spring lock washers, the DIN 137 lock washers are uninterrupted formed disks in either a curved or waved configuration that are non-directional allowing the screw and or nut to be tightened in a clockwise or counter-clockwise

CNS-standards.org provide Spring washer CNS Standards english version translation,CNS Standards lookup search services . CNS Standards Solution English PDF: Translated B-Mechanical Engineering: CNS 5053 Edition Curved Spring washers for Screw Assemblies