Gardner Spring MB1125-038 Belleville Disc Spring

Product Description

The GARDNER SPRING MB1125-038 is a Belleville disc spring engineered for high-load applications in compact spaces. This conical washer-style spring delivers 985.5 pounds of load at its rated deflection of 0.037 inches, making it suitable for bolt loading, preloading bearings, and maintaining clamp force in assemblies subject to vibration or thermal cycling. With a 1.125-inch outer diameter, a 0.567-inch inner diameter, and an overall assembled height of 0.073 inches, the MB1125-038 fits 9/16-inch bolt sizes. It is constructed from steel and installed by mechanical technicians, maintenance engineers, and industrial assembly professionals.

This disc spring is appropriate for use in mechanical fastener assemblies, valve bodies, pump housings, and precision clamping fixtures where consistent axial force is required in a limited stack height. The 9/16-inch bolt size compatibility makes it a common choice in both light industrial and heavy-duty mechanical applications. It ships in a package quantity of 12 units, suited for service kits or recurring maintenance operations.

Key Features

• 985.5-pound load capacity at rated deflection for high-force, compact-envelope applications
• 0.037-inch deflection rating provides controlled spring travel in tight assemblies
• 1.125-inch OD and 0.567-inch ID sized for 9/16-inch bolt diameter fitment
• 0.073-inch overall height allows stacking in series or parallel for load and deflection tuning
• Steel construction for durability under mechanical load and elevated-temperature conditions
• Package quantity of 12 supports service kits and multi-unit installations

Compatibility

Designed for use with 9/16-inch bolt sizes. Suitable as an OEM-style replacement or service component in mechanical assemblies requiring a 1.125-inch OD Belleville disc spring.

Installation Notes

Installation is typically performed by mechanical technicians or maintenance personnel. Ensure the mating bore and bolt are free of burrs and debris before seating the spring. Stacking orientation affects load and deflection characteristics - confirm series or parallel arrangement against the assembly specification before torquing fasteners. Follow applicable ASME or equipment manufacturer guidelines for fastener preload.