Home / Products / Ball Bearing Disc Spring

Ball Bearing Disc Spring

Product Overview

Ball bearing disc springs provide constant axial preloads for rolling element bearings to suppress vibration, eliminate axial clearance, and prevent ball skidding under dynamic operating conditions. Unlike standard Belleville washers, these components feature precision-optimized outer profiles or slotted geometries engineered to interface directly with bearing rings. Dimensions comply with standard industrial specifications or custom mechanical envelopes, maintaining stable load-deflection characteristics across operating temperatures ranging from -40 degrees C to 250 degrees C.

Ball Bearing Disc Spring

Product Types & Configurations

Slotted Ball Bearing Disc Springs:

Engineered with radial slots to reduce spring stiffness while maximizing deflection range, optimized for fractional horsepower and industrial electric motor preloads.

Plain Conical Disc Springs:

Unslotted annular washers designed for high axial loads in heavy-duty gearboxes, pumps, and axial thrust assemblies.

Matched Stacked Sets:

Configured in parallel to multiply load capacity at a constant deflection, or in series to multiply total deflection at a constant load.

Key Features

Predictable Load-Deflection Curve:

Maintains stable force output across the recommended 25 percent to 75 percent working deflection window.

High-Frequency Damping:

Inherent frictional damping characteristics absorb impact loads and attenuate operational noise in high-speed spindles.

Compact Axial Envelope:

Delivers high restorative force within tight spatial constraints compared to conventional coil springs.

Materials & Surface Options

High-Grade Spring Steels:

C67S, C70S, and 50CrV4 (AISI 6150) selected for high-stress fatigue resistance and optimal resilience.

Corrosion-Resistant Alloys:

X10CrNi18-8 (AISI 301) and Inconel X-750 for chemical processing or extreme operating environments exceeding 300 degrees C.

Surface Finishes:

Mechanical zinc plating, zinc-flake coating, and phosphating designed to withstand over 500 hours of salt spray testing per standard corrosion resistance specifications.

Applications

AC/DC Electric Motor bearing preloads to minimize acoustic emission and prevent premature bearing raceway wear.

Industrial planetary gearboxes and speed reducers.

High-speed machine tool spindle bearing packs.

Automotive clutch release mechanisms and heavy-duty hydraulic pumps.

Manufacturing & Quality Control

Precision Stamping:

High-tonnage progressive stamping presses maintaining critical inner and outer diameter tolerances within strict micro-level margins.

Controlled Heat Treatment:

Continuous mesh-belt furnaces producing a uniform tempered Martensitic microstructure, achieving a consistent working hardness of 42 to 52 HRC.

Shot Peening:

Centrifugal wheel peening applied to high-cycle fatigue components to introduce beneficial residual compressive stresses on the surface.

Automated Load Sorting:

Computer-controlled testing machinery verifying load values at specified test heights prior to packaging.

Traceability:

Raw material Mill Test Certificates linked by heat number, with batch identification markings on bulk master packaging.

Customization & OEM

Non-standard outer and inner diameters, customized thicknesses, and bespoke load-deflection testing performed against customer engineering drawings.

Finite Element Analysis support available for stress distribution modeling under specific cyclic load profiles.

Dedicated prototype tooling lead time within 15 business days.

FAQ

Q: How do I select the correct disc spring size for my bearing preload?

A: Match the spring outer diameter to the housing bore or inner ring seating diameter. Calculate the required preload force—typically 1 percent to 5 percent of the bearing's dynamic load rating—and ensure the working deflection falls strictly within the 25 percent to 75 percent range of total dish height.

Q: What causes premature load loss or setting in service?

A: Load loss typically stems from plastic deformation caused by exceeding maximum allowable deflection limits, improper tempering during heat treatment, or severe stress relaxation when operating above 250 degrees C without high-temperature alloys like Inconel.

Q: Can these disc springs be stacked in combination?

A: Yes. Stacking identical springs in parallel increases total load capacity proportionally. Stacking them in series doubles total deflection while keeping the single-spring load value unchanged. Alternating configurations can be designed for tailored force-displacement curves.

Q: What is the typical fatigue life cycle of 50CrV4 disc springs?

A: When operated within recommended stress limits and properly lubricated, 50CrV4 springs achieve a minimum fatigue life of 1,000,000 cycles under dynamic conditions.

Q: Do you provide material test reports and inspection data with shipments?

A: Yes. Complete inspection reports covering dimensional verification, hardness testing, and load-deflection verification charts are shipped with every production lot.

Q: What are the Minimum Order Quantities for custom dimensions?

A: Standard catalog dimensions have no strict minimum order limits. Custom sizes requiring new stamping tooling typically require an established batch quantity per size variant, with flexibility for scheduled annual blanket orders.

As one of the most professional ball bearing disc spring manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized ball bearing disc spring made in China here from our factory. For more information, contact us now.

ball bearing disc spring