1. Understand the Robot's Joint Types and FunctionsIndustrial robots typically have the following joints, each with specific bearing requirements:Rotational Joints (Revolute Joints): Require bearings ...
Full Complement Needle Roller Bearing are fully filled in their rolling elements (i.e., needle roller), usually with no or little gap in the gap between the inner ring and the outer ring, which makes their carrying capacity high. Unlike ordinary needle roller bearings, full load needle roller bearings increase the load carrying capacity through more needle rolls.
The outer ring filled with needle roller bearings has an oil hole, which can be lubricated by the oil hole of the outer ring, and has two protective edges, the inner ring has no protective edge, no cage, the inner ring, the outer ring and the needle roller can be installed separately. Full load needle roller bearings without inner rings are suitable for parts with limited dry radial size, and the surface of the matching journal is directly used as the rolling surface, requiring surface hardness of not low dry HRC60, surface roughness Ra value is not small 0.63hm, full load needle roller bearings with or without inner rings do not limit the axial displacement of the shaft or the housing.
Full load needle roller bearings have no cage design, and the friction between each other is very large during operation, and the limit speed of the bearing is relatively low