Gardner Spring MB0500-038 Belleville Disc Spring

Product Description

The GARDNER SPRING MB0500-038 is a Belleville disc spring designed for high-load applications in compact assemblies. This conical washer-style spring stores and releases energy under axial load, making it well suited for bolted joint preloading, valve components, and precision mechanical assemblies. It has an outer diameter of 0.5 inches, an inner diameter of 0.255 inches, and an overall height of 0.047 inches. At full rated deflection of 0.052 inches, the spring delivers a load of 57,690 pounds. Constructed from steel, this part is built to handle demanding cycle loads in tight spaces where coil springs cannot fit.

This disc spring is appropriate for use in industrial, HVAC, plumbing, and mechanical assemblies requiring consistent clamp force or vibration dampening. It is sized for a 1/4 inch bolt and suits residential and light commercial equipment where maintaining bolt preload over time is critical. Typical applications include flange connections, bearing preloads, and spring stacks where multiple units are assembled in series or parallel to tune load and deflection characteristics to the application requirement.

Key Features

• High load capacity of 57,690 pounds at 0.052 inches deflection in a compact 0.5 inch OD profile
• Steel construction for durability under repeated axial loading and cycling
• Sized for 1/4 inch bolt applications with 0.255 inch inner diameter
• Low overall height of 0.047 inches allows stacking in series or parallel to adjust spring rate
• Conical disc geometry provides high force in minimal axial space

Compatibility

Designed as an OEM-style Belleville disc spring replacement for 1/4 inch bolt assemblies requiring a 0.5 inch outer diameter conical washer spring in steel construction.

Installation Notes

Installation is typically performed by mechanical technicians or tradespeople working on bolted assemblies, valves, or precision equipment. Derate the assembly and relieve all system pressure or load before disassembling the joint. When stacking multiple disc springs, confirm the series or parallel orientation against the original design specification to maintain the intended load and deflection curve. Follow applicable mechanical and equipment codes for fastener torque and joint preload procedures.