What are the possible failures of full complement roller bearings without an outer ring? Full complement of roller bearings without outer ring play a very important benefit in many machine installations. In recent years, China's machinery industry has achieved very good development, and bearings have also been upgraded. More and more different types of bearing products have appeared in people's production and life. The cooperation with the machinery industry has promoted China's economic development. Full-roller bearings without an outer ring will burn. Burnt bearings can temper on the raceways and rotating elements. One of the reasons for the burn: the bearing is installed incorrectly and the position is not centered. If the deflection is large, it is very easy to cause the bearing temperature to rise, and cause the bearing to burn. Otherwise, the bearing may not be lubricated enough; the second reason: the quality of the lubricant is inconsistent, required or deteriorated; the third reason: the bearing The assembly is too tight, and the effect of thermal expansion is not considered in the design, resulting in the bearing clearance getting smaller and smaller during operation. The metal of the coupling frame adheres to the rotating element. The possible reason is that the rotating element of the thin-walled bolted roller bearing is too close to the coupling frame during the installation process. When the bearing is twisted at a high speed, the rotating element is stuck in the coupling frame. ; Maybe the quality of the lubricating oil does not meet the requirements or deteriorates, the lubricating oil pipeline is blocked, and the lubrication is insufficient. The torsional speed of the full roller bearing without outer ring is much lower than that of the cylindrical roller bearing with a coupling frame, but the installation space requirement is small, the bearing capacity is high, and the rigidity is high, which can fully meet the extreme requirements of the planetary gear retarder. IDC can supply single and double row full complement cylindrical roller bearings without outer rings and thrust washers for planetary gear retarders. The size and style of the bearing can also be planned according to customer requirements, including single-sided chamfer and multi-row inner ring bearings, non-standard diameter and width, etc. 1. An assembly mold for a full complement roller bearing without an outer ring, which is characterized in that it comprises a mold body, a door-shaped hole-shaped cavity is provided on the mold body, and a shaft of the cavity is provided The vertical depth corresponds to the height of the mold. The inner ring rib inner ring positioning cavity and the annular roller connection cavity correspond to the position of the inner ring raceway. The radially outer peripheral surface of the roll attachment cavity is the radial positioning surface of the roll for lateral positioning of the roll. The diameter of the roller connection cavity is larger than the diameter of the inner ring positioning cavity. The other port of the roller connection cavity opposite to the end connected with the inner ring positioning cavity is the opening of the bearing inner ring. There is a through roller on the side of the connecting cavity to make up the gap. 2 . The assembly die for a full complement roller bearing without an outer ring according to claim 1 , wherein the depth of the connecting cavity of the roller is smaller than the height of the roller. 3 . 3. The assembling die for a full complement roller bearing without an outer ring according to claim 1 or 2, wherein the die main body is cylindrical, and the die main body also has a thread running through the inner ring. The hollow cavity of the positioning cavity.
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