Gardner Spring MB2250-150 Belleville Disc Spring

Product Description

The GARDNER SPRING MB2250-150 is a Belleville disc spring engineered for high-load applications in a compact axial footprint. It features a 2.25-inch outer diameter, a 0.755-inch inner diameter, and an overall assembled height of 0.188 inches. At full rated deflection of 0.2157 inches, the spring delivers a load of 40.24 pounds. Constructed from steel, this conical washer-style spring is used by mechanical contractors, maintenance technicians, and OEM assembly teams wherever controlled axial force or preload is required in a threaded fastener stack.

Belleville disc springs like the MB2250-150 are common in industrial bolted joints, valve assemblies, bearing preload arrangements, and vibration-dampening fastener stacks. The 3/4-inch bolt size rating makes this spring a direct-fit component in standard 3/4-inch fastener applications across manufacturing, HVAC equipment mounting, pump assemblies, and structural bolted connections requiring consistent clamp load retention over time and temperature cycling.

Key Features

• 2.25-inch outer diameter with 0.755-inch inner diameter for 3/4-inch bolt fitment
• Rated load of 40.24 pounds at 0.2157 inches of deflection
• 0.188-inch overall height for low-profile stack configurations
• Steel construction for durability in mechanical and industrial environments
• Conical disc geometry maintains consistent axial preload under dynamic loads

Compatibility

Designed for use with 3/4-inch bolt sizes in mechanical assemblies requiring a Belleville-style conical disc spring with a 2.25-inch outer diameter.

Installation Notes

Installation is typically performed by mechanical technicians or maintenance professionals as part of a bolted joint or bearing preload assembly. Always de-energize and relieve system pressure before disassembling any joint that incorporates disc springs. Stacking orientation affects load and deflection characteristics - consult the assembly drawing or engineering specification for correct orientation before installation. Follow applicable mechanical codes and torque specifications provided by the equipment manufacturer.