Gardner Spring MB0500-025-S Belleville Disc Spring

Product Description

The GARDNER SPRING MB0500-025-S is a stainless steel Belleville disc spring engineered for high-load applications in compact fastener assemblies. With a 0.5 inch outer diameter and a 0.255 inch inner diameter, this conical washer-style spring delivers a rated load of 88.35 pounds at its specified deflection of 0.0504 inches. The overall assembled height (OAH) is 0.038 inches. These springs are commonly installed by millwrights, maintenance technicians, and mechanical assemblers working on precision load-bearing or vibration-dampening applications across industrial and commercial equipment.

This Belleville disc spring is sized for use with 1/4 inch bolts and fastener assemblies requiring controlled axial load in a minimal stack height. Its stainless steel construction makes it suitable for environments where corrosion resistance is required, including wet, chemical-exposed, or outdoor service conditions. It is sold in packages of 12, making it practical for service kits or multi-point fastener applications on equipment requiring uniform preload across several bolt locations.

Key Features

• Stainless steel construction for corrosion resistance in harsh service environments
• Compact 0.5 inch OD profile fits 1/4 inch bolt applications
• Rated load of 88.35 pounds at 0.0504 inches of deflection
• 0.038 inch overall assembled height for tight axial stack clearances
• Available in packages of 12 for multi-point fastener service work

Compatibility

Designed for use with 1/4 inch bolt sizes in mechanical assemblies requiring a Belleville-style disc spring with a 0.5 inch outer diameter and 0.255 inch inner diameter.

Installation Notes

Installation is typically performed by a qualified millwright or mechanical technician. Power down and de-energize all equipment before accessing fastener assemblies. When stacking multiple Belleville disc springs, verify series or parallel orientation to achieve the desired load and deflection characteristics per the assembly specification. Do not exceed the rated deflection of the spring during installation or torque application.