INDUSTRY COMPONENT

Disc

A rotating disc component used in disc/seat assemblies for sealing, grinding, or material handling applications.

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Component Specifications

Definition
A precision-engineered rotating disc that forms part of a disc/seat assembly, typically functioning as a sealing surface, grinding element, or material transfer component in industrial machinery. It interfaces with a stationary seat to create controlled contact for operations like fluid control, particle reduction, or product movement.
Working Principle
Operates by rotating against a stationary seat to create friction, pressure, or sealing contact. The disc's motion (often driven by a shaft) enables functions such as regulating flow in valves, grinding materials in mills, or separating components in centrifuges through centrifugal force and surface interaction.
Materials
Typically made from hardened steel (e.g., AISI 4140), stainless steel (e.g., 316L), cast iron, ceramics (e.g., alumina), or engineered polymers (e.g., PTFE). Material selection depends on application requirements like wear resistance, corrosion resistance, temperature tolerance, and friction properties.
Technical Parameters
  • Max RPM 300-3000
  • Diameter 50-500 mm
  • Hardness 45-60 HRC for metals
  • Thickness 5-50 mm
  • Surface Finish Ra 0.4-1.6 μm
  • Flatness Tolerance ≤0.05 mm
Standards
ISO 286-2, DIN 7184

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Disc.

industrial disc rotating disc disc seat assembly mechanical disc valve disc grinding disc sealing disc disc component Disc Disc in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Disc/Seat Assembly

The critical sealing interface within a pressure relief valve that opens to release excess pressure and closes to maintain system integrity.

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Engineering Analysis

Risks & Mitigation
  • Wear and tear from friction
  • Misalignment causing uneven contact
  • Material fatigue under cyclic loading
  • Corrosion in harsh environments
FMEA Triads
Trigger: Improper material selection for operating conditions
Failure: Premature wear or corrosion leading to leakage or reduced efficiency
Mitigation: Conduct material compatibility analysis and use protective coatings or alternative materials
Trigger: Inadequate lubrication or cooling
Failure: Overheating and thermal deformation, causing sealing failure or binding
Mitigation: Implement regular maintenance schedules and monitor temperature with sensors

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ISO 286-2, surface finish per ISO 1302
Test Method
Dimensional inspection with CMM, hardness testing per ASTM E18, leak testing per ISO 5208 for sealing applications

Buyer Feedback

★★★★☆ 4.5 / 5.0 (28 reviews)

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Disc so far."

"Testing the Disc now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

What is the primary function of a disc in a disc/seat assembly?

The disc primarily creates controlled contact with the seat to perform functions like sealing (in valves), grinding (in mills), or material handling (in separators), depending on the machine type.

How do I select the right material for a disc?

Consider operating conditions: use hardened steel for high wear, stainless steel for corrosion resistance, ceramics for high temperatures, and polymers for chemical compatibility. Always match material to the seat for optimal performance.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Die Table Disc and Seat