7. Thrust ball bearings are composed of a washer-shaped raceway ring with a raceway, a ball and a cage assembly. The raceway ring matched with the shaft is called the shaft, and the raceway ring matched with the housing is called the seat ring. The two-way bearing is matched with the secret shaft in the middle ring, the one-way bearing can bear one-way axial load, and the two-way bearing can bear two-way axial load (neither can bear radial load). Thrust ball bearings

Main applications: steering pins of automobiles, spindles of machine tools.

8. Thrust roller bearing Thrust roller bearing is used to bear axial load as the main shaft, meridional combined load, but the meridional load shall not exceed 55% of the axial load. Compared with other thrust roller bearings, this kind of bearing has lower friction factor, higher rotational speed, and has self-aligning ability. The rollers of the 29000 type bearing are asymmetric spherical rollers, which can reduce the relative sliding of the stick and the raceway during operation, and the rollers are long and large in diameter, and the number of rollers is large and the load capacity is large. Oil lubrication is usually used. Low speed conditions can be greased. Thrust Roller Bearings

Main applications: hydroelectric generators, crane hooks.

9. Cylindrical roller bearings The rollers of cylindrical roller bearings are usually guided by two ribs of one bearing ring, and the cage rollers and guide rings form a combination s, which can be combined with another A bearing ring is separated and is a separable bearing.

This kind of bearing is easy to install and disassemble, especially when the inner and outer rings are required to have an interference fit with the shaft and housing. Such bearings are generally only used to bear radial loads, and only single-row bearings with ribs on the inner and outer rings can bear small constant axial loads or large intermittent axial loads. Cylindrical roller bearings

Main applications: large motors, machine tool spindles, axle boxes, diesel engine crankshafts, automobiles, gearboxes that are kept in mind, etc.

10. Four-point contact ball bearings can bear radial load and bidirectional axial load. A single bearing can replace the angular contact ball bearing with front combination or back combination, and is suitable for bearing pure axial load or axial load. For the composite load with a large load component, this type of bearing can form one of the contact angles when it is subjected to an axial load in any direction, so the ferrule and the ball are always in contact with two sides and three knives on any contact line. Four-point contact ball bearings

Main applications: aircraft jet engines, gas turbines.

11. Thrust cylindrical roller bearings are composed of washer-shaped raceway rings (shaft washers, seat washers), cylindrical rollers and cage assemblies. The cylindrical roller is processed with convex surface, so the pressure distribution between the roller and the raceway surface is uniform, and it can bear one-way axial load, with large axial load capacity and strong axial rigidity. Thrust cylindrical roller bearings

Main applications: oil drilling rigs, iron and steel machinery.

12. Thrust needle roller bearing separable bearing is composed of raceway ring, needle roller and cage assembly, which can be combined with stamped thin raceway ring or cut thick e-roller random combination. Non-separable bearings are integral bearings composed of precision stamped raceway rings, needle rollers and cage assemblies, which can withstand unidirectional axial loads. This type of bearing occupies a small space and is conducive to the compact design of machinery. Only the needle roller and cage assembly is used, and the mounting surface of the shaft and housing is used as the raceway surface. Thrust needle roller bearings

Main applications: speed change devices for automobiles, cultivators, machine tools, etc.

Thirteen. Thrust tapered roller bearing This type of bearing is equipped with a truncated truncated roller (the big end is a spherical surface), and the roller is accurately guided by the rib of the raceway ring (shaft washer, seat ring). In the design, the vertices of the conical surfaces of the raceway surfaces of the shaft washer and the raceway and the rolling surface of the rollers intersect at a point on the center line of the bearing. The one-way bearing can bear one-way axial load, and the two-way bearing can bear two-way axial load. . Thrust tapered roller bearing

Main application:

One-way: crane hook, oil drilling rig swivel.

Bidirectional: rolling mill roll neck.

14. Outer spherical ball bearing with seat The outer spherical ball bearing with seat is composed of an outer spherical ball bearing with seals on both sides and a cast (or steel plate stamped) bearing seat. The internal structure of the outer spherical ball bearing is the same as that of the deep groove ball bearing, but the inner ring of this kind of bearing is wider than the outer ring, and the outer ring has a truncated spherical outer surface, which can be automatically aligned with the concave spherical surface of the bearing seat.

Main use: mining, metallurgy, agriculture, chemical industry, textile, printing and dyeing. Conveying machinery, etc.