Introduction to folding aligning roller bearing

Aligning roller bearings are bearings with drum rollers assembled between an inner ring with two raceways and an outer ring with spherical raceways.

Aligning roller bearing has two rows of rollers, mainly bearing a diameter load, but also can bear any direction of axial load. High radial load capacity, especially suitable for heavy loads or vibration loads, but can not withstand pure axial load. The raceway of the outer ring of this kind of bearing is spherical, so it has good aligning performance and can compensate the coaxiality error.

The aligning roller bearing has two rows of symmetrical spherical rollers, the outer ring has a shared spherical raceway, and the inner ring has two raceways tilted at an Angle to the bearing axis, which has good aligning performance. When the shaft is bent by force or different cores are installed, the bearing can still be used normally. The aligning property varies with the bearing size series, and the allowable aligning Angle is generally 1~2.5 degrees. The load capacity of this type of bearing is large. In addition to the radial load, the bearing can also bear the axial load of two-way action, and has good impact resistance. Generally speaking, the working speed allowed by the aligning roller bearing is low.

Double row tapered roller bearings self-aligning roller bearings can be divided into two different structures according to the shape of roller section: symmetrical spherical roller bearings and asymmetric spherical roller bearings. Asymmetric self-aligning roller bearings are early products, mainly for the maintenance of the main engine. Symmetrical self-aligning roller bearings are rarely used in the new design of the main engine, and the internal structure has been comprehensively improved and designed and optimized. Compared with the early production of self-aligning roller bearings, it can withstand greater axial load, the running temperature of this bearing is lower, so it can adapt to the requirements of higher speed. According to the inner ring with or without guard and the cage used can be divided into C type and CA type two kinds,C type bearing is characterized by the inner ring without guard and the use of steel plate stamping cage,CA type bearing is characterized by the inner ring on both sides of the guard and the use of vehicle entity cage in order to improve the lubrication of the bearing, can provide users with the outer ring with a ring oil groove and three oil holes of the aligning roller bearing to the shaft Rear-mounted code /W33 means that, according to users' requirements, it can also supply self-aligning roller bearings with inner ring oil holes. In order to facilitate customers' loading and unloading and replacing bearings, it can also provide self-aligning roller bearings with inner hole taper, cone hole taper is 1:12 and later code is K. In order to meet the requirements of special users, it can also provide bearings with inner hole taper of 1:30 and rear Bearings with tapered inner holes, code K30, can be mounted directly on the conical journal by locking nuts, or mounted on the cylindrical journal by means of a tightening sleeve or a disconnecting sleeve.

Thrust bearing is divided into two parts: tight ring and loose ring. The tight ring is tight with the shaft sleeve, and the loose ring is supported on the bearing seat. The ring and rolling body are usually made of rolling bearing steel with high strength and good wear resistance, and the surface hardness after quenching should reach HRC60 ~ 65. The cage is made of mild steel, and can also be made of copper alloy cloth formica or plastic.