The design and installation of tapered thrust roller bearings.

Tapered thrust roller bearings with cages are available in a split design so that the two washers as well as the roller and cage thrust assemblies can be easily installed separately. Full-roller screw-mounted bearings are held together by special positioning parts. To simplify operation, the washers have threaded holes for lifting bolts.

1. The small one-way tapered thrust roller bearings are almost exclusively used in knuckle bearing configurations for commercial vehicles. The tapered thrust roller bearings have full rollers and are fixed with a thin steel plate cover. Most of these tapered thrust roller bearings are equipped with wear and oil resistant nitrile rubber (NBR) friction seals. This tapered thrust roller bearings are multi-purpose grease for lifetime lubrication and require no maintenance. There are a variety of designs, the only difference being the design of the bearing housing race and the bearing housing.

Larger one-way bearing washers are manufactured differently; some bearing washers are coaxially the same as the bearing housing races, while others have different designs.
The gasket with the same size and coaxial bearing housing has a tapered raceway and a locating rib. Tapered thrust roller bearings of this design are often used in applications where large axial loads are to be experienced, such as on drilling equipment turntables or crane hooks. This bearing has a cage that is positioned by two washers.
Other design of tapered thrust roller bearings has a tapered washer with a tapered raceway and a locating rib, while the bearing housing race is flat (flat). Therefore, the tapered thrust roller bearings of this design can accept slight eccentricity of the shaft relative to the bearing housing bore without adversely affecting the performance of the tapered thrust roller bearings. In addition to several sizes with full rollers, the tapered thrust roller bearings have cages that are concentric with the rollers.

2.Two-way tapered spring roller bearings

The two-way tapered thrust roller bearings are mainly used in rolling mills with multi-row cylindrical roller bearings. Such bearings with flat shaft washers are more popular because of the slight eccentricity of the shaft with respect to the bore of the bearing housing and the slight variation of the radial internal clearance used by the radially tapered thrust roller bearings. A spacer sleeve is disposed between the two bearing housing races. The spacer sleeve is sized so that the roll bearing housing cover screws are fully tightened and the tapered thrust roller bearings do not require special spring adjustments.
Shaft and bearing housing races Bi-directional tapered roller bearings with tapered raceways. Generally, it has a higher axial load bearing capacity than tapered thrust roller bearings with a flat shaft race, and can radially position the shaft to some extent. If the load bearing capacity of the tapered thrust roller bearings is insufficient in consideration of the required service life, a double-row tapered roller bearing designed with a large contact angle can be used, see "Double-row tapered roller bearing".

Since the two-way tapered thrust roller bearings are usually loosely fitted on the roll journal and the roll bearing housing, most of the tapered thrust roller bearings have one or two positioning grooves. This makes it possible to prevent the shaft race from rotating on the shaft by using a key embedded in the positioning groove or the like.
3.The screw fixed bearing - thrust tapered roller bearing

This type of tapered thrust roller bearings must be able to withstand extreme axial loads and allow angular displacement of the threaded shaft relative to the support. Therefore, such tapered thrust roller bearings are usually full-roller type with large diameter and extra long rollers. In order to withstand the centering offset of the roll bearing housing without adversely affecting bearing performance, the tapered thrust roller bearings have a spherical race. The race can be a race ring or a bearing housing race.

In the bearing with a spherical axle race on the roller set between the spherical axle race and the corresponding concave spherical threaded shaft or pressure baffle, the necessary centering offset is produced. The above pressure barrier can also be supplied by ZYSL.
When the bearing housing race is spherical, the centering offset is absorbed by the roller set between the bearing housing race and the pressure baffle. Pressure flaps for such tapered thrust roller bearings are usually supplied with the bearings.
ZYSL manufactures a wide range of screw-on bearings designed to meet the specific requirements of a specific application.

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