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Tapered Roller Bearings

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Taper roller bearings VNV brand good feedback bearings roller
Taper roller bearings VNV brand good feedback bearings roller
Taper roller bearings VNV brand good feedback bearings roller
Taper roller bearings VNV brand good feedback bearings roller

Taper roller bearings VNV brand good feedback bearings roller


Description

Tapered roller bearings

Tapered roller bearings belong to the separation type bearings, bearings of the inner and outer rings have tapered raceway. This bearings roller according to the number of columns of mounted rollers are divided into single row, double row and four rows of tapered roller bearings and other different structural types. Single row tapered roller bearings can withstand radial load and single direction axial load. When bearings bear radial load, will produce an axial force, so when another can bear the opposite direction of the axial force of the bearing to be balanced.

Definition:

The ability of single row taper roller bearings to withstand axial load depends on the contact angle, that is, the outer ring raceway angle, the larger the angle, the greater the axial load capacity. The largest amount of tapered roller bearings are single row tapered roller bearings. In the front wheel hub of the car, with a small size double row tapered roller bearings. Four rows of tapered roller bearings are used in large cold and hot rolling mills and other heavy machinery.

Structural characteristics:

The type code of tapered roller bearings is 30000, and the tapered roller bearings are separated type bearings. In general, especially in GB/T307.1-94 "Rolling Bearings Tolerances for Radial Bearings" in the size range involved in the tapered roller bearings between the outer ring and the inner components is 100 percent universal interchangeable use.

The angle of the outer ring and the diameter of the outer raceway are standardized in the same way as the external dimensions. It is not allowed to change in the design and manufacture. In order to cause the outer ring of tapered roller bearings and the inner components of the universal interchangeable in the world.

Tapered roller bearings are mainly used to bear radial load mainly radial and axial joint load. Compared with angular contact ball bearings, they have large load carrying capacity and low limiting speed. Tapered roller bearings can withstand a direction of the axial load, can limit the shaft or shell a direction of the axial displacement.

Classification:

Single row tapered roller bearings have an outer ring, its inner ring and a set of tapered rollers by the basket-shaped keep frame encompassed into an inner ring assembly. The outer ring can be separated from the inner ring assembly, in accordance with the provisions of the ISO tapered roller bearing dimensions standard, any one of the standard type of tapered roller bearing outer ring or inner ring assembly should be able to realize the international interchangeability with the same type of outer ring or inner ring assembly. That is, the same type of outer ring in addition to the external dimensions, tolerances need to comply with ISO492 (GB307) provisions, the inner ring components of the cone angle, component diameter of the cone and so on must also comply with the relevant provisions of the swap.

Usually, single row tapered roller bearings outer raceway cone angle between 10°~ 19°, can simultaneously withstand the combined effect of axial load and radial load. The larger the cone angle, the greater the ability to withstand axial loads. Large cone angle bearing, rear code plus B, cone angle between 25°~ 29°, it can withstand larger axial load. In addition, single row tapered roller bearings can adjust the size of the clearance in the installation process.

The outer ring (or inner ring) of double row tapered roller bearings is a whole. Two inner ring (or outer ring) small end face is close, there is a spacer in the middle, clearance is by the thickness of the spacer to adjust, can also use the thickness of the spacer to adjust the double row tapered roller bearings pre-surge.

Four rows of tapered roller bearings, the performance of such bearings and double rows of tapered roller bearings are basically the same, but more than double rows of tapered roller bearings to withstand the radial load is greater, the limit speed is slightly lower, mainly for heavy machinery.

Multi-sealed double, four rows of tapered roller bearings, ZWZ provides long life, multi-sealed double, four rows of tapered roller bearings. Individualized new design of bearings, change the traditional design method of fully sealed bearings, using a combination of sealing and dustproof new sealing structure type, improve the sealing effect, improve the sealing performance. Compared with the open structure bearings, the life span of multi-sealed double and four rows tapered roller bearings is increased by 20% to 40%; the consumption of lubricant is reduced by 80%.

Usage:

Tapered roller bearings are mainly subject to radial mainly diameter, axial joint load. Bearing bearing capacity depends on the outer ring raceway angle, the larger the angle the greater the bearing capacity. This type of bearing belongs to the separation type bearings, according to the number of columns in the bearing rolling body is divided into single row, double row and four rows of tapered roller bearings. Single row tapered roller bearings clearance to be adjusted by the user in the installation; double and four rows of tapered roller bearings clearance has been in the factory according to the user's requirements, do not need to be adjusted by the user.

Tapered roller bearings have conical inner ring and outer ring raceway, tapered roller arranged between the two. The projection lines of all tapered surfaces converge at the same point of the bearing axis. This design makes tapered roller bearings particularly suitable for carrying compound (radial and axial) loads. The axial load capacity of the bearing is mostly determined by the contact angleα; the larger theαangle, the higher the axial load capacity. The size of the angle is expressed by the calculation coefficient e; the larger the value of e, the larger the contact angle, and the greater the applicability of the bearing to withstand axial loads.

Tapered roller bearings are usually of the separated type, i.e. the tapered inner ring assembly consisting of an inner ring with roller and cage assembly can be mounted separately from the tapered outer ring (outer ring).

Applications: automotive, rolling mill, mining, metallurgy, plastic machinery and other industries.

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