Gardner Spring MB1500-070-S Belleville Disc Spring

Product Description

The GARDNER SPRING MB1500-070-S is a Belleville disc spring engineered for applications requiring high load capacity in a compact axial space. Manufactured from stainless steel, this conical washer-style spring measures 1.5 inches outer diameter and 0.505 inches inner diameter, with an overall assembled height (OAH) of 0.104 inches. It delivers a rated load of 36 pounds at a deflection of 0.063 inches. Licensed mechanical contractors, maintenance technicians, and industrial assemblers commonly install these springs where controlled preload, vibration damping, or bolt-load retention is required.

Belleville disc springs like the MB1500-070-S are used across a broad range of mechanical assemblies including pipe flanges, valve actuators, pump assemblies, HVAC equipment mounts, and bolted joint applications requiring consistent spring force in tight axial clearances. This part is sized for 1/2-inch bolt applications. Its stainless steel construction suits environments where corrosion resistance is a priority, such as wet, chemical, or outdoor service conditions.

Key Features

• Stainless steel construction for corrosion resistance in demanding service environments
• 1.5 inches outer diameter with 0.505 inches inner diameter - sized for 1/2-inch bolt applications
• 36-pound rated load at 0.063 inches deflection for predictable preload performance
• Low-profile design with 0.104 inches OAH enables use in tight axial-clearance assemblies
• Conical disc geometry provides high load in minimal travel compared to coil springs

Compatibility

Designed for use in 1/2-inch bolt assemblies requiring a Belleville-style disc spring with 1.5 inches OD and 0.505 inches ID. Verify stack height, load, and deflection requirements against the assembly specification before installation.

Installation Notes

Installation is typically performed by millwrights, pipefitters, or mechanical technicians following the assembly drawing or OEM specification. Disc springs can be stacked in series to increase deflection range or in parallel to increase load capacity - always confirm the intended stack configuration before assembly. Inspect seating surfaces for burrs or debris that could affect spring seating and load distribution. Follow applicable torque specifications from the fastener or equipment manufacturer.