1. Self-aligning ball bearing
Spherical roller bearings are equipped with drum roller bearings between the inner ring with two raceways and the spherical outer ring. The curvature center of the outer ring raceway surface is consistent with the bearing center, so it has the same function as the self-aligning ball bearing.
When the shaft and housing flex, it can automatically adjust the axial load in two directions. Shuote said that when the radial load capacity is strong, it will be more suitable for heavy load and shock load.
2. Needle roller bearings
The basic structure of the bearing with inner ring is the same as that of the NU cylindrical roller bearing, but due to the use of needle rollers, it can reduce the volume and withstand larger radial loads. The bearing without inner ring should choose the same hardness shaft to install the surface.
3. Thrust needle roller bearings
The separated bearing is composed of rolling ring, needle roller and cage components, and can be combined with stamping thin raceway ring or cut into thick raceway ring.
The non-separable bearing is an integral bearing consisting of race ring, needle roller and cage components, and is processed by precision stamping. This kind of bearing can bear one-way axial load, and it occupies a small space, which is conducive to the compact design of the machine.
4. Tapered roller bearings
This type of bearing is equipped with truncated cone-shaped rollers. The design makes the vertices of the conical surfaces of the inner ring raceway surface, the outer ring raceway surface and the roller rolling surface intersect at the center line of the bearing.
Single-row bearings can bear radial loads and unidirectional axial loads, while double-row bearings can bear radial loads and bidirectional axial loads, and are suitable for heavy loads and shock loads.
5. Cylindrical roller bearings
Shuote said that cylindrical roller bearings can be divided into single row, double row and multiple row cylindrical roller bearings. Among them, single row cylindrical roller bearings with cages are more commonly used. In addition, there are cylindrical roller bearings with other structures, such as single row or double row full complement rollers.
Shuote said that single row cylindrical roller bearings are classified into N type, NU type, NJ type, NF type and NUP type according to different ring ribs. Cylindrical roller bearings can withstand large radial loads, and can also withstand certain unidirectional or bidirectional axial loads depending on the structure of the ring ribs.
FC, FCD, FCDP type four-row cylindrical roller bearings can withstand larger radial loads and are usually used in heavy machinery.
Post time: Sep-18-2020