The material of the slewing ring and matching pinion inside the spur gear slewing drive is made of high-quality 42CrMo forgings, after tempering 229-269HB (Q+T) processing, the comprehensive mechanical properties are greatly improved to ensure customer equipment to provides strong support and has good operation.
All teeth are induction hardened and tooth surface hardness is 50HRC, tooth inside is soft, tooth surface quenching improves the single tooth load capacity and tooth wear resistance, the soft core ensures the toughness of the teeth under impact load, the teeth of the slewing ring and pinion are strong, durable and impact-resistant are the prerequisites for reliable operation and long life of the gear type slewing drive.