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How to choose internal gear slewing ring and external gear slewing ring?
The slewing bearing can be divided into: external gear slewing bearing, internal gear slewing bearing, and Non-gear slewing bearing.
How to choose between internal gear slewing ring and external gear slewing ring, and what are the advantages and disadvantages?
1. Internal gear slewing ring: Since the teeth of the internal gear slewing ring are inside the slewing ring, the overall appearance is relatively neat. The driving gear meshes with the slewing ring inside the slewing ring, no need to install a safety guard, the gear has better dust resistance, longer retention time with lubricant, and the transmission contact stress of the internal tooth meshing is low, and the amount of wear is small , Longer service life. However, due to the size limitation of the internal gear slewing bearing, the internal space is relatively compact, and it is relatively inconvenient to install and debug in the early stage, diagnose faults in the later stage, and check gear meshing.
2. External gear slewing ring: The teeth of the external gear slewing ring are on the outside of the slewing ring. It is convenient to install and can maximize the use of the limited space of the slewing ring. It is easy to diagnose faults and check gear meshing due to the ring gear pitch circle diameter. Larger, can better obtain a larger transmission ratio, greatly reduce the circumferential force and torque on the pinion