Genuine Cummins QSK60 Diesel Engine Flywheel 4917182

Material Science:

- ASTM A48 Class 40B Cast Iron with:

- 220-250 HB base hardness (ASTM E10 verified)

- 60-64 HRC induction-hardened teeth (AGMA 2001-D04 compliant)

- Plasma Transferred Arc (PTA) Welding on tooth surfaces (0.8mm Stellite 6 deposition)

- Thermal Dynamics:

- Stable operation from -54°C to +150°C (MIL-STD-810G Method 501.7)

- <0.03mm thermal deformation at 125°C (ISO 286-2 Class IT7)

Prime Applications:

- Ultra-Class Mining: Komatsu 980E-4 (QSK60) haul trucks at 4,800m altitude

- Offshore Energy: Wärtsilä 46F marine engines (DNV GL compliant)

- Oilfield Power: Schlumberger Prime™ pumps (NACE MR0175 certified)

- Interference Fit System:

- 0.45±0.03mm press-fit tolerance (SAE J617 Class 4)

- Requires 25-ton hydraulic press (Cummins TQ480 installation kit)

A. Load Capacity Testing

- Dynamic Torque:

- 12,500 N·m peak capacity (SAE J621 Section 7.2)

- Validated with Bendix PSG3000 starter (5,000+ cold starts @ -32°C)

- Rotational Balance:

- G2.5 balance grade (ISO 1940-1) achieved through 5-axis CNC machining

B. Advanced Wear Resistance

- Tooth Profile Optimization:

- 20° pressure angle with Root Radius >2.0mm (AGMA 913-A98)

- DLC Coating (Diamond-Like Carbon) reduces wear rate by 45%

- Corrosion Protection:

- 3,000hr salt spray resistance (ASTM B117)

- HVOF-sprayed WC-12Co coating on mounting surfaces

Parameter Specification

Bolt Torque M16×1.5: 280 N·m ±2% (SAE J429 Grade 14.9)

Press Force 25 tons (245 kN)

Runout Tolerance <0.03mm TIR (ISO 1101)

Lubrication Kluber Staburags NBU 30/PTM