Gardner Spring MB0500-018 Belleville Disc Spring

Product Description

The GARDNER SPRING MB0500-018 is a Belleville disc spring designed for applications requiring precise axial load in a compact envelope. This conical washer-style spring measures 0.5 inches outer diameter, 0.255 inches inner diameter, and 0.034 inches overall height. It delivers a rated load of 10.34 pounds at a deflection of 0.021 inches. Constructed from steel, it provides consistent spring force in tight spaces where coil springs are not practical. Licensed technicians and mechanical assembly professionals install this type of spring in valves, fastener preload systems, and vibration-dampening assemblies across HVAC, plumbing, and industrial equipment.

Belleville disc springs like the MB0500-018 are used in residential and light commercial mechanical assemblies where controlled clamp load or axial preload is required. Common applications include bolted flange connections, valve stem packing, and bearing preload configurations. The 1/4 inch bolt size compatibility makes this spring a practical fit for standard fastener assemblies in equipment service and repair. It is typically installed in stacks to multiply load or increase deflection range depending on orientation.

Key Features

• Compact 0.5 inch outer diameter fits tight fastener and valve assemblies
• Rated load of 10.34 pounds at 0.021 inches deflection for predictable spring performance
• Steel construction for durability under repeated compression cycles
• Compatible with 1/4 inch bolt size configurations
• Low profile 0.034 inch overall height suits shallow stack assemblies
• Sold in packages of 12 to support multi-spring stacking applications

Compatibility

Designed for use with 1/4 inch bolt size assemblies. Suitable as a replacement or supplemental Belleville disc spring in mechanical and HVAC-related fastener and valve applications requiring a 0.5 inch OD conical washer spring.

Installation Notes

Belleville disc springs are installed by qualified mechanical technicians and HVAC service professionals. De-energize and depressurize any system before disassembly of fastener or valve components. Stacking orientation affects load and deflection characteristics - parallel stacking increases load while series stacking increases deflection. Refer to the equipment manufacturer's documentation for the correct stack configuration and fastener torque requirements.