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SANY Flywheel Assembly HQ8101068SQ01 600052670225
Role in the Powertrain System
1. Inertial Energy Storage: It releases energy during the engine's non-power strokes, ensuring uniform crankshaft rotation and reducing operational vibration.
2. Starting Transmission (Ring Gear): A starter ring gear is press-fitted onto the outer circumference of the flywheel. When the ignition key is turned to start the vehicle, the starter motor's pinion gear extends and meshes with this ring gear, thereby cranking the engine to initiate combustion.
3. Clutch/Torque Converter Mounting Base: Serving as the power output interface, it connects directly to the clutch pressure plate or torque converter, transferring engine power to the downstream transmission and drivetrain.
Common Failure Modes and Replacement
1. Ring Gear Tooth Damage/Wear: Improper clearance adjustment of the starter motor or a malfunction within the motor itself can cause the starter gear to impact the ring gear, resulting in broken or worn-down teeth. Symptoms include a harsh, high-pitched metallic screeching sound during starting and the engine's failure to crank smoothly.
2. Contact Surface Ablation and Cracking: Under severe operating conditions-such as prolonged clutch slippage or high-temperature overloading-the flywheel's working surface may exhibit localized blue discoloration, hardening, or even fine fatigue cracks. These issues can lead to clutch shudder and drivetrain slippage.
Technical & Physical Specification Table
| Specification Category | Technical Indicator | Specific Specification / Process Description |
|---|---|---|
| Physical Specs | Net Weight | Approx. 35 kg ～ 50 kg (Varies slightly depending on the specific engine model adapted) |
| Outer Diameter | Approx. Φ350 mm ～ Φ420 mm (Including the outermost edge of the starter ring gear) | |
| Manufacturing Process | Friction Surface Flatness | ≤ 0.05 mm (Ensures uniform contact with the clutch disc/torque converter to prevent shudder) |
| Dynamic Balance Grade | Meets ISO G2.5 or higher standard (Minimizes engine vibration during high-speed rotation) | |
| Matching Performance | Adapted Starter Motor Voltage | 24 V |
| Number of Teeth (Ring Gear) | Commonly 120 to 140 teeth (Depending strictly on the specific flywheel diameter) |
DETAILS
| DESCRIPTION | Flywheel Assembly | PART NUMBER | HQ8101068SQ01 600052670225 |
| WEIGHT | 40 kg | VOLUME | Outer diameter Φ378 mm Inner diameter Φ50 mm Thickness 48 mm |
| TRUCK MOLDE | SANY | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
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