Metric tapered roller bearings

Metric tapered roller bearings

There are several benefits to buying metric tapered roller bearings. They can carry an axial load, for starters. The second is that they have unique designations. They also come with the proper mounting dimensions.

Ability to carry an axial load
Tapered roller bearings have a larger load capacity than ball bearings. However, the contact angle of the rollers is primarily to blame for this. The bearing’s ability to support axial loads increases with increasing contact angle.

A bearing’s nominal contact angle ranges from 10 to 20 degrees. To boost the axial load carrying capability, a unique design might be used to raise the contact angle. The contact angle also shows how closely the rollers are pressed against the raceways. A performance element that is also used is the contact angle (a).
Metric tapered roller bearings
A straightforward calculation can be used to determine the bearing’s ability to support axial loads. The General Catalogue contains the equation. Even for bore diameters up to 85 mm, the calculation is still accurate.

However, in urgent situations, more exact computations are advised. The revised formula can be used to calculate the maximum axial load that can be supported for a bigger bearing.

Typically, the minimum axial load is greater than the radial load rating. External forces, however, can also be more than the required axial load.

Because of this, it’s critical to consider the load rating while selecting a bearing. Additionally, bearings that support a lot of radial load are also exposed to a lot of axial load.
Metric tapered roller bearings
The contact angle an affects the axial load carrying capacity of metric tapered roller bearings. The axial load carrying capability of the bearing increases with increasing contact angle.

Reduced friction is also achieved by increasing the contact angle. The vertices of the cones that make up the rollers play a significant role in determining the contact angle a.

The vertices of the outer raceway and the inner raceway are congruent with these vertices. The rollers will always be in contact with the raceways thanks to this. Additionally, this design enables the bearing to withstand moment loads.

Metric tapered roller bearings can have their axial load carrying capability raised through specific design.

This is carried out to lessen stress rises at the roller contact’s edges. It also permits some angular misalignments. It guarantees the best possible stress distribution. For some bearings, the contact angle a can also be changed.
Metric tapered roller bearings

The metric tapered roller bearing basic designation system is divided into two parts: the first part defines the basic variant, and the second part specifies the series of bearings.

A capital letter “C” or “J” precedes the three-digit number in the basic identification, which is followed by a digit or letters designating the dimension series.

Metric tapered roller bearings

Letters and numbers in the bearing series designate the bearing’s diameter and breadth.

This name is frequently followed by a suffix that describes specific bearing characteristics including unique designs, materials, and configurations.

The metric tapered roller bearing designation system is not entirely standardized because some manufacturers append a suffix to their designation.

The basic designations are often followed by the outer ring and cage designations.

The outer ring and the cages can be switched out thanks to their interchangeable construction. The cages are constructed from laminated cloth or sheet metal.

Although plastic cages are also offered, steel cages are the most common type. The cages hold the rollers in place.

The cone and cup are other names for the outer ring and the cages.

Tapered roller bearings can operate smoothly at high speed, while long-lived bearings can exceed the speed in general. They basically have no speed limit and generate less heat.

However, tapered roller bearings have less vibration and noise, which is also the advantage of tapered roller bearings. Therefore, you should choose the appropriate bearing according to your actual needs to answer this question.

First of all, as for the components of tapered roller bearing, it includes an inner ring, an outer ring and several tapered rollers.

At the same time, it also includes a cage.

From a separate perspective, the bearing, the inner ring and the outer ring are all tapered, just like a cone. One of the outstanding advantages of tapered roller bearing is that it can withstand heavy axial and radial loads.