Driven Plate
Overview
The Driven Plate, also referred to as the clutch disc, is an essential part of a clutch system found in manual transmissions. Positioned between the flywheel and pressure plate, it enables the transfer of rotational force from the engine to the drivetrain. Its dual-sided friction material absorbs shocks during engagement while the torsional dampers (often springs) reduce vibrations, ensuring smoother operation and prolonging transmission lifespan.
Structure and Working Principle
A Driven Plate consists of a central splined hub, friction surfaces bonded to both sides, and damping springs integrated into the disc body. The splines connect to the transmission input shaft, allowing axial movement during clutch pedal actuation. When engaged, the pressure plate clamps the Driven Plate against the flywheel, transmitting power. Disengagement (via pedal) releases this pressure, interrupting power flow. The damping springs compensate for sudden torque changes, reducing driveline shocks.
Key Features
Modern Driven Plates prioritize heat dissipation and durability. High-performance variants use ceramic or Kevlar-based linings for aggressive applications like racing or heavy machinery. Engineered tolerances ensure minimal wear over cycles, while anti-judder designs prevent chatter during low-speed engagements. Some plates incorporate wear indicators (e.g., rivet depth) for maintenance tracking.
Application Areas
Primarily used in automotive (passenger cars, trucks, and off-road vehicles) and industrial machinery (generators, tractors). Electric vehicles with manual-style transmissions or hybrid systems may utilize specialized Driven Plates to handle regenerative braking loads. Aftermarket segments cater to performance upgrades or replacement parts.
Maintenance and Precautions
Driven Plates degrade due to friction lining wear or spring fatigue. Symptoms include slippage under load or vibration during engagement. Regular clutch inspections should check lining thickness (minimum 1–2mm remaining). Avoid ‘riding’ the clutch pedal, which accelerates wear. Heavy-duty applications may require upgraded linings or increased plate count for higher torque capacity.
B2B Procurement Guide
Specify parameters: diameter (e.g., 200–400mm), spline count/size, torque rating, and lining material. Bulk purchases from manufacturers often yield 10–20% cost savings. Quality certifications (e.g., ISO 9001) and compatibility documentation (OEM part cross-references) are critical. Consider regional suppliers for reduced logistics costs, but verify material traceability.
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