DISC WASHER

A DISC WASHER is an elastic washer with a conical disc-shaped structure. It may also be referred to as a Conical Spring Washer or Belleville Washer. When subjected to axial pressure, it elastically deforms and generates a restoring force, helping maintain preload, compensate for clearance, and absorb vibration.

Product Name: DISC WASHER / Conical Spring Washer / Belleville Washer
Product Type: Conical disc-shaped elastic washer
Primary Functions: Provides preload, compensates for displacement, and absorbs axial loads
Inner Diameter: Selected according to the size of the matching screw, bolt, or shaft
Outside Diameter: Standard dimensions or as specified by drawing
Thickness and Disc Height: Determined according to load, compression travel, and available installation space
Stacking Methods: Single washer, parallel stacking in the same direction, series stacking in opposite directions, or combined arrangements
Materials: Spring steel, stainless steel, alloy steel, or other specified materials
Heat Treatment: Can be evaluated according to hardness, elasticity, and fatigue-resistance requirements
Surface Treatments: Zinc plating, nickel plating, black oxide, phosphate coating, passivation, or other specified finishes
Production Methods: Stamping, disc forming, and heat treatment
Production Options: Standard specifications or custom production based on drawings
Packaging: Bulk packing, bag packing, or box packing

Provides High Axial Spring Force

The conical disc structure can generate axial restoring force within a relatively small installation space, making it suitable for assemblies requiring higher preload.

Helps Maintain Fastening Preload

The spring force generated after compression can compensate for certain changes caused by component settlement, wear, and thermal expansion or contraction, helping reduce loss of clamping force.

Flexible Stacking Configurations

DISC WASHERS can be stacked in the same direction to increase load capacity, or stacked in opposite directions to increase compression travel, allowing the spring characteristics to be adjusted for different mechanical requirements.

Absorbs Vibration and Impact

The elastic disc structure can absorb part of the axial vibration, impact, and displacement, helping reduce the direct transmission of these loads to connected components.

Suitable for Limited Installation Space

DISC WASHERS are commonly used in machinery, bearings, valves, automotive and motorcycle components, molds, and precision assemblies. Actual load capacity and compression travel should be confirmed according to the selected washer specifications.