Gardner Spring MB1000-043 Belleville Disc Spring

Product Description

The GARDNER SPRING MB1000-043 is a Belleville disc spring engineered for high-load applications in compact axial spaces. This conical washer-style spring generates significant clamping or preload force through controlled deflection. With a 1-inch outer diameter, a 0.505-inch inner diameter, and an overall assembled height of 0.071 inches, the MB1000-043 delivers a rated load of 424.89 pounds at its specified deflection of 0.0295 inches. Constructed from steel, it is suited for use in mechanical assemblies, bolted joints, and industrial equipment where consistent spring force is required. Installation is typically performed by mechanical technicians and maintenance professionals.

This Belleville disc spring is sized for use with 1/2-inch bolt applications. It is commonly used in stacked or single configurations within bolted flange assemblies, valve components, electrical equipment, and industrial machinery where space is limited and precise load control is critical. The compact profile allows integration into tight mechanical envelopes while maintaining high load-bearing capacity relative to its size.

Key Features

• Rated load of 424.89 pounds at 0.0295 inches of deflection
• 1-inch outer diameter with 0.505-inch inner diameter for 1/2-inch bolt fitment
• Overall height of 0.071 inches for low-profile axial installation
• Steel construction for durability in mechanical load and preload applications
• Can be stacked in series or parallel to tune load and deflection characteristics

Compatibility

Sized for use with 1/2-inch bolts. Designed as a standard Belleville disc spring replacement for mechanical assemblies requiring a 1-inch OD conical washer-style spring.

Installation Notes

Installation should be performed by a qualified mechanical technician familiar with spring stack configurations. Ensure the mating surfaces are clean and free of burrs before seating the spring. When stacking multiple disc springs, verify the orientation - series stacking increases deflection while parallel stacking increases load. Always relieve system pressure or mechanical preload before removing or replacing disc springs in a live assembly.