What are the advantages of spherical roller bearing
Self-aligning ball bearing and roller bearings, also has adjustable mind, but because the roller and the raceway surface contact surface, the friction load capacity has greatly exceeded the self-aligning ball bearing. Because there is the friction resistance of spherical roller bearings in rotation, so the speed limit of the bearing with ball bearing is low, but different from roller tapered roller bearings and raceway contact line, the speed limit is higher than that of tapered roller bearing.Spherical roller bearing is divided into symmetric and non symmetric thrust roller bearings thrust roller bearings.The axial load capacity of this kind of bearing is very large, and it can bear several radial loads while bearing the axial load, but the radial load should not exceed 55% of the axial load.Oil lubrication is usually used.Thrust tapered roller bearings can only withstand one-way axial load, can limit the axial displacement of bearings, so it can be used as one-way axial positioning. Compared with thrust cylindrical roller bearings, the bearing capacity is large, the relative sliding is small, but the limit speed is low.
Spherical roller bearings can bear radial load, but also can withstand axial load in either direction. With high radial load capacity, especially for heavy load or vibration load, but can not withstand pure axial load. The raceway of the bearing outer race is spherical shape, so the self-aligning performance is good, and the coaxiality error can be compensated.
Spherical roller bearings, bearing three types of domestic call. Spherical roller bearing is a bearing, radial load, also can withstand two-way bearing load. Spherical roller bearing with large radial bearing capacity, but also has the function of regulating the heart, the machining precision of a low requirement to avoid the installation error or shaft deflection of bearing, and resistance to vibration and impact of.Spherical roller bearing with two rollers, mainly bear radial load, but also can withstand axial load in either direction. With high radial load capacity, especially for heavy load or vibration load, but can not withstand pure axial load. The raceway of the bearing outer race is spherical shape, so the self-aligning performance is good, and the coaxiality error can be compensated.Fast type double row spherical roller bearing development, from the initial use of asymmetric spherical roller, then use symmetrical spherical roller. Symmetric spherical roller bearing inner ring rib changed in high stress conditions, stress is concentrated on the roller roller diameter, ring thickness decreases, a corresponding increase in the length of the roller, improves the bearing capacity, meaning called enhanced structure, with the letter "C" or "CA the bearing code".CC, CA spherical roller bearings belong to special bearings, such bearings because energy consumption is relatively low, toughness and more advantages, CA, CC spherical roller bearing can freely operate in high speed operation of the machine, and popular in the work of low friction, high rigidity and precision, and has high bearing capacity so much the majority of users.
