What are the structural characteristics of bolted roller bearings?1

What are the structural characteristics of bolted roller bearings? Generally forced to follow, bolt-type curved rollers are generally filled with rollers, and the bolt shaft raceway is quenched. In order to avoid stress concentration, the thick-walled outer surface of the roller is arc-shaped. The foreign has two integral ribs, and the axial direction is guided by the rollers. The head of the bolt shaft and the press-fitted side retaining ring provide axial support for the outer ring through the rollers. Bolted roller bearings are tight machine elements that allow quick and easy assembly of the bearing on the plane of the equipment frame via the bolt shaft. Existing bolt-type roller bearings are mostly needle rollers or single-row or double-row cylindrical rollers, and their full-complement structure can encounter heavier radial loads, but cannot suffer from some heavy-duty machine tools or heavy-duty transmission equipment. Large deflection moments and bidirectional axial loads that occur during negligence, deflection, or short-term strikes. At the same time, limited by its own structure, it is difficult to achieve reliable sealing. Creation content This new type of bolted-sealed double-row full-complement angular contact ball roller bearing is suitable for the bidirectional axial load and skew moment that exist in the actual use of the bolted roller bearing. In order to realize the above-mentioned attempt, the present application adopts the following technical decisions: a bolted roller bearing, comprising an outer ring, a bolt body, a short inner ring and two rows of steel balls, characterized in that: the bolt body includes a head, a journal and a thread The head of the bolt body and the short inner ring are respectively provided with an inner ring channel. The contour of the bolt bearing is slightly constricted at the proximal surface. The result of calibrating the contact between the needle roller and the middle of the raceway line can prevent damaging edge stresses in bolted roller bearings. The bolt bearing roller bearing has a thick walled tube outside, which can be heat treated according to high temperature and high nitrogen, and the high tightness screening roller is correctly guided by the ribs on the high stiffness outside. Due to the linear contact, the rollers can easily rotate heavy loads on the raceway. In order to better reduce the vertical stress, the outer side of the support point roller adopts the inclined plane decision-making decision. The bolt bearing has various specifications and models, such as single sealing ring and double sealing ring, no sealing ring and with sealing ring. Bolted bearings build thin and long rollers, so the axial structure is compact, and its inner diameter and bearing capacity are the same as other types of bolted bearings. Small diameter, especially suitable for bearings with limited axial mounting specifications. Depending on the application, it is possible to select bearings without bores or needle and ball bearing components. At this time, the surface of the motor shaft and the surface of the shell hole matched with the bearing serve as the inner and outer surface of the bearing to ensure the load working ability and the working performance. Its function is the same as that of a ring bearing. The strength, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be similar to the raceway of the bearing throw ring. This type of bearing only has a burdensome axial load.

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