Gardner Spring MB0937-045-S Belleville Disc Spring

Product Description

The GARDNER SPRING MB0937-045-S is a Belleville disc spring engineered for high-load, compact-deflection applications. Manufactured from stainless steel, this conical washer-style spring delivers a rated load of 19,636.6 pounds at a deflection of 0.022 inches, making it well suited for applications that demand precise force in a very small travel range. With an outer diameter of 0.937 inches, an inner diameter of 0.317 inches, and an overall assembled height of 0.067 inches, it fits tightly constrained assemblies where coil springs cannot be used. Licensed tradespeople and mechanical assemblers working with bolted joint preload, valve assemblies, or vibration-dampening stacks are the typical end users.

This disc spring is designed for use with 5/16-inch bolt sizes, fitting standard fastener assemblies in HVAC equipment, industrial valves, pump housings, and structural bolted connections. Its stainless steel construction resists corrosion, making it appropriate for both indoor mechanical systems and environments with moisture or chemical exposure. It is sold in packages of 12, allowing technicians to stock enough for stacked configurations or multiple service points in a single job.

Key Features

• High load capacity: 19,636.6 pounds at 0.022 inches deflection in a sub-1-inch diameter form factor
• Stainless steel construction for corrosion resistance in demanding environments
• Fits 5/16-inch bolt size for easy integration with standard fastener hardware
• Compact 0.937-inch OD allows use in tightly constrained bolt flange and valve assemblies
• Consistent conical geometry supports stacking in series or parallel configurations to tune load and travel
• Package quantity of 12 supports stacked installations and field stock requirements

Compatibility

Designed for use with 5/16-inch bolt assemblies. Suitable as an OEM-style replacement or new installation disc spring in bolted joint, valve, and preload applications requiring a 0.937-inch OD Belleville spring.

Installation Notes

Belleville disc springs are installed by qualified mechanical technicians familiar with bolted joint preload and torque sequencing procedures. Always de-energize, depressurize, or isolate the assembly before disassembly or spring replacement. When stacking multiple disc springs, confirm the series or parallel orientation against the original equipment specification, as orientation directly affects load and deflection characteristics. Refer to the equipment manufacturer's service documentation for torque requirements and fastener specifications.