Gardner Spring MB1000-073 Belleville Disc Spring

Product Description

The GARDNER SPRING MB1000-073 is a Belleville disc spring designed to deliver high load capacity in a compact axial footprint. Manufactured from steel, this conical washer-style spring measures 1 inch in outer diameter and 0.505 inches in inner diameter, with an overall assembled height of 0.091 inches. It generates 1,910 pounds of load at its rated deflection of 0.015 inches, making it well suited for applications that require significant clamping or preload force within a tightly constrained space. Mechanical assemblers, maintenance technicians, and industrial service professionals typically specify this type of spring for bolt preload, vibration damping, and stack compensation applications.

Belleville disc springs of this size and load rating are commonly used in flanged bolt assemblies, valve actuators, bearing preload arrangements, and mechanical fastener joints where controlled spring force is required. The 0.505-inch inner diameter is sized for use with a 1/2-inch bolt. Both OEM assembly and field repair applications are typical use cases. Stacking multiple springs in series or parallel can modify the load and deflection characteristics to meet specific application requirements.

Key Features

• High load capacity of 1,910 pounds at 0.015 inches deflection in a 1-inch OD form factor
• Steel construction for durability in mechanical clamping and preload applications
• Inner diameter of 0.505 inches sized for 1/2-inch bolt installations
• Low profile overall height of 0.091 inches allows use in space-restricted assemblies
• Can be stacked in series or parallel to adjust load and deflection characteristics

Compatibility

Sized for use with 1/2-inch bolts. Designed as an OEM-style replacement or supplemental Belleville disc spring for mechanical assemblies requiring a 1-inch OD conical washer spring with high axial load at minimal deflection.

Installation Notes

Installation is typically performed by mechanical or maintenance technicians following the assembly torque and stack specifications provided by the equipment manufacturer. Power down and de-energize all associated equipment before disassembling bolted joints. Ensure the spring is oriented correctly relative to the mating surfaces, as reversing orientation or stacking direction directly affects load output. Follow applicable mechanical and industrial assembly standards for fastener preload procedures.