Value Collection BWSI087-025BX Belleville Disc Spring

Product Description

The VALUE COLLECTION BWSI087-025BX is a Belleville disc spring — a conical, washer-style spring designed to provide high load capacity in a compact axial space. This type of disc spring generates substantial clamping or preload force when compressed, making it a standard fastener-system component in bolted flange assemblies, valve stacks, pressure vessels, and precision machinery. The BWSI087-025BX is sized for 7/8-inch bolt applications, with an inside diameter of 0.906 inches and an outside diameter of 1.299 inches. Construction is steel. Mechanical and maintenance technicians use Belleville disc springs to maintain bolt preload, compensate for thermal expansion, or provide controlled deflection in high-load joints.

This disc spring is suited to industrial and commercial applications where vibration, thermal cycling, or dynamic loading can relax conventional fastener tension. Typical use scenarios include bolted pipe flanges, pump housings, compressor assemblies, and structural equipment requiring sustained clamping force. The spring is sold individually per package unit, with a minimum order quantity of 25 pieces, making it appropriate for MRO stock, service truck inventory, or scheduled maintenance kits requiring multiple identical springs across a bolted assembly.

Key Features

• Conical disc design delivers high load capacity in a minimal axial envelope
• 0.906 inch inside diameter fits standard 7/8-inch bolt applications
• 1.299 inch outside diameter for consistent bearing surface coverage
• Steel construction for durability under compressive and thermal loads
• Suitable for stacking in series or parallel configurations to tune load and deflection

Compatibility

Designed as an OEM-style replacement or stock Belleville disc spring for 7/8-inch bolt assemblies requiring conical spring washers in industrial, mechanical, or process equipment applications.

Installation Notes

Belleville disc springs are installed by qualified mechanical or maintenance technicians. Before servicing any bolted assembly, de-energize the system and relieve any pressure or load according to applicable equipment lockout/tagout procedures. Springs may be stacked in series to increase deflection range or in parallel to increase load capacity — verify the intended stack orientation before assembly. Consult the equipment manufacturer's specifications and applicable ASME or industry standards for correct preload targets and torque procedures.