Gardner Spring MB1000-050 Belleville Disc Spring

Product Description

The GARDNER SPRING MB1000-050 is a Belleville disc spring designed for high-load applications in tight axial spaces. This conical washer-style spring generates significant compressive load with minimal deflection, making it well suited for bolt preloading, vibration damping, and shock absorption tasks. The MB1000-050 measures 1 inch in outer diameter and 0.505 inches in inner diameter, with an overall assembled height of 0.075 inches. Constructed from steel, it delivers a rated load of 29,084.4 pounds at its design deflection of 0.01 inches. Licensed HVAC, mechanical, and industrial technicians install these springs in assemblies where consistent clamp force and controlled spring rates are critical.

This disc spring is sized for use with a 1/2-inch bolt, making it a direct fit in bolted flange connections, valve assemblies, pressure relief mechanisms, and equipment mounting applications. Its compact footprint allows stacking in series or parallel to tune load and deflection characteristics for the specific assembly. Typical installations appear in commercial HVAC equipment, pumping systems, compressor assemblies, and general mechanical equipment where maintaining precise preload over service cycles is required.

Key Features

• Steel construction provides durability under repeated compressive cycling
• High load rating of 29,084.4 pounds at only 0.01 inches of deflection
• 1-inch outer diameter with 0.505-inch inner diameter fits standard 1/2-inch bolt hardware
• Low-profile design at 0.075 inches overall height allows use in space-constrained assemblies
• Stackable in series or parallel configurations to adjust effective load and travel

Compatibility

Designed for use with 1/2-inch bolt sizes. Suitable as an OEM-style or maintenance replacement disc spring in mechanical assemblies requiring a 1-inch OD Belleville washer spring.

Installation Notes

Disc springs are installed by qualified mechanical technicians familiar with bolted joint preload requirements. De-energize and depressurize the system before disassembling any bolted connection. Stacking orientation affects load and deflection curves - consult the assembly drawing before replacing existing springs. Follow applicable mechanical codes and equipment manufacturer guidelines for fastener torque sequences when reassembling the joint.