Gardner Spring MB0750-028-S Belleville Disc Spring

Product Description

The GARDNER SPRING MB0750-028-S is a Belleville disc spring designed to deliver a high load in a compact axial footprint. It features a 0.75-inch outer diameter, a 0.38-inch inner diameter, and an overall height of 0.051 inches. Constructed from stainless steel, it provides corrosion resistance suited to demanding industrial and mechanical environments. At its rated deflection of 0.016 inches, the spring generates a load of 6.52 pounds. This type of conical disc spring is used by mechanical assemblers, maintenance technicians, and OEM equipment builders wherever precise axial spring force is required in a tight space.

Belleville disc springs are used across a wide range of applications including bolt and fastener preloading, valve assemblies, clutch mechanisms, pressure relief systems, and vibration damping. This particular spring is sized for 3/8-inch bolt applications. It is suited for both light industrial and precision mechanical uses where consistent spring force and repeatability are critical. Stainless steel construction makes it appropriate for environments exposed to moisture, mild chemicals, or elevated temperatures where carbon steel springs may corrode or degrade.

Key Features

• Stainless steel construction for corrosion resistance in harsh or wet environments
• 0.75-inch outer diameter and 0.38-inch inner diameter sized for 3/8-inch bolt applications
• 6.52-pound load capacity at 0.016-inch deflection for precise force control
• Compact 0.051-inch overall height allows stacking in series or parallel configurations
• Consistent conical geometry supports repeatable preload performance

Compatibility

Sized for 3/8-inch bolt applications. Designed as a direct-fit Belleville disc spring for mechanical assemblies requiring a 0.75-inch OD conical washer spring in stainless steel.

Installation Notes

Belleville disc springs are installed by mechanical technicians following the assembly specifications of the host equipment. De-energize or depressurize any assembly before servicing spring stacks. Springs may be stacked in series to increase deflection range or in parallel to increase load capacity - verify the intended stack configuration before installation. Do not exceed the rated deflection, as overloading a disc spring beyond its flat position can cause permanent deformation or failure.