Features:1. Heavy load, short stroke, small space required, easy to use in combination.2. Easy to repair and replace, high economic security, suitable for precision heavy machinery with small space and large load.3. Disc spring has a larger deformation energy per unit volume than other types of springs. Has good buffer shock absorption capacity.4. With variable stiffness characteristics.5. Often used as a strong buffer and shock absorber in heavy machinery, it is also a compacting device for clutches, safety valves, pressure reducing valves, etc.Specification:Item Type: Disc SpringMaterial: SteelColor: As Pictures ShowSize(cm/inch)Quantity8 * 4.2 * 0.4 / 3.1 * 1.7 * 0.1620Pcs10 * 5.2 * 0.5 / 3.9 * 2.0 * 0.220Pcs12.5 * 6.2 * 0.7 / 4.9 * 2.4 * 0.2820Pcs14 * 7.2 * 0.8 / 5.5 * 2.8 * 0.3120Pcs16 * 8.2 * 0.9 / 6.3 * 3.2 * 0.3520Pcs18 * 9.2 * 1.0 / 7.1 * 3.6 * 0.3920Pcs20 * 10.2 * 1.1 / 7.9 * 4.0 * 0.4320PcsPackage Size: 13 * 6.5 * 2cm / 5.1 * 2.6 * 0.8inchPackage Weight: Approx. 143gPackage List:1 * Box of Disc Spring