3349983 drive plate is a core torque-transmitting component in the wet clutch / brake assembly of construction machinery, used in pairing with 3349993 driven plate. It is mainly designed to receive hydraulic clamping force and transmit torque. Made of high-strength stamped steel with precision quenching and tempering, it features high rigidity and low thermal deformation, ensuring stable engagement and disengagement with the driven plate under heavy-duty, high-frequency operation and oil-immersed conditions.
Technical Parameters
- Model: 3349983
- Type: Clutch / brake drive plate (steel plate)
- Material: 50# high-carbon steel / 65Mn spring steel
- Heat treatment: Overall quenching and tempering
- Surface hardness: HRC 28–35
- Structure: External spline teeth, meshed with clutch housing / hub
- Matching mode: Staggered assembly with 3349993 driven plate
- Applicable media: Hydraulic transmission oil, clutch oil
- Operating temperature: -30℃~180℃
- Surface treatment: Phosphating / blackening
- Features: High bending strength, deformation-resistant, good heat dissipation, anti-seizure, stable torque transmission
Application Scenarios
Suitable for heavy construction machinery such as loaders, graders, bulldozers and forklifts, mainly installed in:
Common Faults & Troubleshooting
- Warpage and deformation: Caused by long-term high temperature and pressure, leading to slipping and shifting shock. Replace 3349983 drive plate.
- External tooth wear and chipping: Excessive clearance with housing splines, causing noise and unstable power transmission. Replace drive plate and inspect housing splines.
- Scoring and seizing: Caused by contaminated oil or friction material shedding. Clean oil circuit and replace complete set of drive and driven plates.
- Excessive wear and abnormal clearance: Thinning of steel plates due to long-term friction, resulting in abnormal piston stroke. Replace drive plate and readjust clutch clearance.