When your compression spring application requires a high load in small spaces, Lee Spring's Belleville Disc Washers can be the solution. Their conical configuration enables them to support high loads with relatively small deflections and solid heights compared to helical springs. Belleville Washers are often used to solve vibration, thermal expansion, relaxation and bolt creep problems.
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Lee Spring Standard Series Belleville Disc Washers are manufactured from 300 Series Stainless Steel. Additionally, Lee Spring Standard Series Belleville Disc Washers are passivated in accordance with specification ASTM A967 (supercedes QQ-P35) to remove contaminants and further improve resistance to corrosion. 300 Series Stainless Steel is slightly magnetic and is recommended for applications with temperatures up to 500°F (260 °C).
The Lee Spring DIN Belleville Disc Washer Series offers metric disc spring washers to meet global demand for sizes specified by DIN . Lee Spring also expand on size options past DIN &#;s standard size tables, made to DIN manufacturing and quality specifications to provide component flexibility for product designers. DIN Belleville Disc Washers are made with 51CrV4 spring steel (AISI ) and finished with a phosphate and oil surface for general protection from corrosion.
DIN Belleville Disc Washer Series designs are classified into three groups based on the material thickness:
Group 1 &#; This range applies to disc spring washers with material thickness less than 1.25mm. Lee Spring DIN Belleville Disc Washer Series include 88 sizes in Group 1, over a selection of outside diameters from 6mm (0.236&#;) to 40mm (1.575&#;) with inside diameters from 3.2mm (0.126&#;) to 20.4mm (0.803&#;).
Group 2 &#; This range applies to disc spring washers with material thickness from 1.25mm through 6mm. Lee Spring DIN Belleville Disc Washer Series include 161 sizes in Group 2, over a selection of outside diameters from 20mm (0.787&#;) to 200mm (7.874&#;) with inside diameters from 10.2mm (0.402&#;) to 102mm (4.016&#;).
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Group 3 &#; This range applies to disc spring washers with material thickness over 6mm through 14mm. Lee Spring DIN Belleville Disc Washer Series include 41 sizes in Group 3, over a selection of outside diameters from 100mm (3.937&#;) to 250mm (9.843&#;) with inside diameters from 51mm (2.008&#;) to 127mm (5.000&#;).
Disc Springs to DIN (DIN EN ) are manufactured from Ck75 (DIN 1.) or 51CrV4 (DIN 1.) carbon spring steels depending upon thickness.
Stock stainless steel disc springs are manufactured from X12CrNiAl177 (DIN 1.) or X7CrNiAl177 (DIN 1.) depending upon thickness.
We can also manufacture disc springs from a wide range of temperature and corrosion resistant material to suit your application. Please see the materials section for further details.
As long as the disc spring has no signs of damage and the overall height is still within tolerance, then the disc spring can be reused.
Yes, the dimensions of disc springs do change under compression but as long as the recommended guide clearance is applied, it will not cause any problems.
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