INDUSTRY COMPONENT

Clutch Disc

A clutch disc is a friction component in clutch-brake systems that engages and disengages power transmission between rotating shafts.

Component Specifications

Definition
The clutch disc is a critical friction component in mechanical clutch-brake systems, consisting of a steel core plate with friction material bonded to both sides. It transmits torque from the driving shaft to the driven shaft when engaged under pressure from the pressure plate, and allows disengagement when pressure is released. The disc includes torsional dampers with springs to absorb vibration and shock loads during engagement.
Working Principle
The clutch disc operates on friction principles. When the clutch is engaged, the pressure plate forces the disc against the flywheel, creating friction that transmits rotational force. When disengaged, the pressure is released, allowing the disc to separate and interrupt power transmission. The torsional damper springs absorb rotational irregularities to ensure smooth engagement.
Materials
Steel core plate (typically SAE 1010-1020), organic or ceramic friction material (asbestos-free compounds containing resins, fibers, and fillers), cushion springs (spring steel), and rivets (steel or copper).
Technical Parameters
ParameterTypical rangeNotes & selection driver
Thickness7-12 mm
Inner Diameter100-180 mm
Outer Diameter200-350 mm
Friction Coefficient0.3-0.4
Maximum Torque Capacity200-800 Nm
Operating Temperature Range-40°C to 300°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO/TS 16949, DIN 75410, SAE J1479

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Overheating from excessive slipping
  • Contamination by lubricants reducing friction
  • Fatigue failure of damper springs
  • Material delamination under high torque
FMEA Triads
Trigger: Excessive slipping during engagement
Failure: Overheating and accelerated wear of friction material
Mitigation: Proper operator training and installation of wear indicators
Trigger: Oil contamination from leaking seals
Failure: Reduced friction coefficient leading to slippage
Mitigation: Regular maintenance of input shaft seals and use of contamination-resistant materials

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Thickness tolerance ±0.2 mm, flatness within 0.1 mm, balance within 15 g-cm
Test Method
SAE J1479 for friction performance, ISO 26867 for wear testing, DIN 75410 for dimensional inspection

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Clutch Disc

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Jiangsu Mensch Auto Parts Co., Ltd.
Yancheng, Jiangsu, CN
Founded 200750,000+ M2
ISO/TS16949:2009
Also makes: Clutch Cover, Automotive Components, Dump Truck and 1 more
Listed on the company's own website · profile compiled by CNFX from public sources
Zohama
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Synchronizers
Synchronizers are precision components in manual transmissions that enable smooth gear shifting by equalizing rotational speeds between gears and shafts.
Brake Disc (Rotor)
A rotating disc in disc brake systems that creates friction with brake pads to slow or stop vehicle motion.
Main Bearing Journals
Main bearing journals are precision-machined cylindrical surfaces on a crankshaft that rotate within main bearings to support rotational motion in internal combustion engines.
Surround
Structural component that encloses and protects suspension system elements while providing mounting points and structural integrity.

Frequently Asked Questions

What causes clutch disc wear?

Clutch disc wear is primarily caused by friction heat, abrasive particles, improper engagement (slipping), and contamination from oil or grease.

How do I know when to replace a clutch disc?

Replace when experiencing slipping (RPM increases without acceleration), burning smell, difficulty shifting gears, or visible wear below minimum thickness specifications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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