Motorcycle Crankshaft Assy
| Crankshaft Technical Specifications |
| Material | 40Cr / 42CrMo High-Strength Alloy Steel | Process | Forging / Casting |
| Heat Treatment | Quenching & Tempering | Journal Hardening | Induction Hardened (50–55 HRC) |
| Dynamic Balancing | ≤ 0.5 g·cm | Main Journal Diameter | 28 – 45 mm |
| Crank Pin Diameter | 22 – 36 mm | Stroke Length | 40 – 70 mm |
| Overall Length | 120 – 220 mm | Connecting Rod Length (Center to Center) | 80 – 130 mm |
| Crank Web Thickness | 12 – 22 mm | Tapered Shaft End (optional) | 1:10 / 1:12 Taper |
| Surface Finish (Journals) | Ra ≤ 0.32 µm | Tolerance Grade | IT6 / IT7 |
| Applicable Displacement | 100cc – 250cc | Quality Certification | ISO 9001:2015 |
| Warranty | 12 months | Origin | China |
