Full complement cylindrical roller bearings can be divided into PO, P6, P5, P4, P2 according to the accuracy grades. The accuracy grades are sorted from low to high. The method of adjusting the radial clearance of full complement cylindrical roller bearings: the selection of full complement cylindrical roller bearings is fast and easy. The automatic selection is available. The combined radial load on the fixed load is fixed from the local ring raceway The rings are exposed and transmitted to the corresponding shaft or bearing locally. The characteristic of this load is that the radial load vector is a relatively static resultant and ring. Bearing the load ring can be used relatively loose. The rotational load is the resultant radial load of the full complement cylindrical roller bearing ring acting on the drum rotating in the circumferential direction, and the various parts of the rotation, such as the rotational load, which are rotated by the resultant vector phase ring radial load, are borne by the rotational load. . The rotating load ring is tightly fitted, in special cases, the load, such as elective, is light or heavy, the load at low speed is only occasional, the bearing is made of hard material and the surface roughness is high, the rotating load bearing ring can also be Used loosely. The third load swings the load or the non-directional load, the combined direction of the radial load of the load ring is uncertain, it is characterized by the effect of the radial load vector ring raceway of the combined ring, the impact load, vibration in a certain area, vibration, The load, the direction of which is swing, the roller has to bear a certain area, or the load acting on the bearing, the load value often changes. To bear the load-bearing swing, the outer ring and the circumference, the bearing, and the hole should be used in close cooperation. The internal structure of cylindrical roller bearing adopts rollers arranged in parallel, and spacers or spacers are installed between the rollers, which can prevent the inclination of the rollers or the friction between the rollers, and effectively prevent the increase of the rotational torque. Cylindrical rollers and raceways are line contact bearings with large load capacity and mainly bear radial loads. The friction between the rolling element and the rib of the ring is small, which is suitable for high-speed rotation. Cylindrical roller bearings are separable bearings, which are very convenient to install and disassemble. According to the presence or absence of a full complement cylindrical roller bearing retaining ring, NSK cylindrical roller bearings are divided into the following shapes: • NU type, N type, NNU type and NN type are suitable for free side bearings. • NJ type and NF type can bear a certain degree of axial load in one direction. NH type and NUP type are used as fixed side bearings. • NH-type cylindrical roller bearings are assembled from NJ-type cylindrical roller bearings and L-type rib rings. • NUP type bearings should be mounted with the engraved side of the retaining ring facing outward.
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