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DIN 137 B Waved Spring Washers

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DIN 137 B Waved Spring Washer

DIN 137 B Waved Spring Washers are thin metal washers that often have three or four "waves." Their wavy design allows them to act as a spring that exhibits a fairly linear spring rate between roughly 20% and 80% of their available deflection. When loaded (compressed), their outside diameter (OD) increases as their inside diameter (ID) decreases so allow space for these dimensional changes. They can be stacked but must be separated by a flat washer. Use to provide a preload between two surfaces and in situations where axial space is limited. Common applications include maintaining fastener tension, acting as take-up springs to compensate for tolerance variations in assembled parts and as cushion spacers. Reducing end play in motors and providing a preload for bearings are two examples. Choose from zinc plated and plain finish (no rust protection) spring steel, stainless steel and spring bronze. Washer size refers to its nominal hole size and is based on screw size (for instance, an M6 washer is used with an M6 screw). DIN 137 B is recommended for new designs in place of DIN 137 A.

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Code Product Qty. Package Qty. Carton  
WFA584-500 M3 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB584-500 M3 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFD584-500 M3 Waved Spring Washer DIN 137B, A2 Stainless Steel
WFA600-500 M4 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB600-500 M4 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFD600-500 M4 Waved Spring Washer DIN 137B, A2 Stainless Steel
WFA615-500 M5 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB615-500 M5 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFD615-500 M5 Waved Spring Washer DIN 137B, A2 Stainless Steel
WFA631-500 M6 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB631-500 M6 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFD631-500 M6 Waved Spring Washer DIN 137B, A2 Stainless Steel
WFA646-500 M7 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB646-500 M7 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFA659-500 M8 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB659-500 M8 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFD659-500 M8 Waved Spring Washer DIN 137B, A2 Stainless Steel
WFA688-500 M10 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB688-500 M10 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFD688-500 M10 Waved Spring Washer DIN 137B, A2 Stainless Steel
WFA701-500 M12 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB701-500 M12 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
WFD701-500 M12 Waved Spring Washer DIN 137B, A2 Stainless Steel
WFA709-500 M14 Waved Spring Washer DIN 137B, Spring Steel, Plain Finish
WFB709-500 M14 Waved Spring Washer DIN 137B, Spring Steel, Mechanical Zinc Plated
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