Taper Roller Bearing | Features | Advantages | Applications

The taper roller bearing is made up of rolling parts shaped like a cone frustum. They are placed so that the axes of each rolling element connect at a shared apex on the bearing's axis. In kinematics analysis, this is the necessary condition for pure rolling motion between conical surfaces. The line of resultant reaction in a taper roller bearing caused by rolling motion between conical surfaces. In taper roller bearings, the line of resultant reaction across the rolling elements forms an angle with the bearing's axis. As a result, taper roller bearings can withstand both radial and axial loads. In reality, the existence of either component causes the other to act on the bearing. In other words, a taper roller bearing under pure radial stress generates a thrust component. Taper roller bearings have a detachable construction. The outer ring is called a cup, while the inner ring is called a cone. The cup can be separated from the bearing assembly, which includes the roller, cage, and cone.

Taper Roller Bearing

Features of Taper Roller Bearing:

• It support all types of loads.
• Taper roller bearing are especially high load capacity and high rigidity.

Following are the Advantages of Taper Roller Bearing:

• This type of bearing can take heavy radial and thrust loads.
• Tapper roller bearing has more rigidity.
• Taper roller bearing have a high load capacity.
• Tapper roller bearing can be easily assembled and disassembled due to separable parts.
• They have minimal load requirement source.
• It support pure radial, pure axial or any combination without modification.

Following are the Disadvantages of Tapper Roller Bearing

• Two taper roller bearings are necessarily used on the shaft to balance the axial force.
• It is necessary to adjust the axial position of the bearing with pre load. This is essential to coincide the apex of the cone with the common apex of the rolling elements.
• Tapper roller bearing are costly.

Application of Taper Roller Bearing:

Taper roller bearing is used in variety of application. Following are the application of Taper Roller Bearing:

• Roller Shaft supports
• Engines and Reducer.
• Railroad axel boxes 
• Mining
• Cantilever wheel axles
• They are used in car and trucks
• Contraction
• Large size bearing in rolling mills
• Aircraft fuel pump
• Gearboxes for industrial machinery
• It is used in propeller shaft and differentials
• Agriculture machinery shaft

Angular Contact Bearing | Advantages | Uses

In angular contact bearing, the groove in inner and outer race are so shaped that the line of reaction at the contact between the balls and races makes an angle with the axis of the bearing. There are two parts to this reaction: axial and radial. Therefor the angular contact bearing are often used in pair, either side by side or at the opposite ends of the shaft, in order to take the thrust load in both direction. These bearing are assembled with a specific magnitude or preload. Let us check more details about angular contact bearing in this article. 

Angular Contact Bearing

Following are the Advantages of  Angular Contact Bearing 

• Angular Contact Bearing can take both radial and thrust load.
• In Angular Contact Bearing, one side of groove in the outer race is cut away to permit the insertion of large number of balls than that of deep groove ball bearing. This permit to bearing to carry relatively large axial and radial load. Therefore the load carrying capacity of angular contact bearing is more than that of deep groove ball bearing.

Following are the Disadvantages of  Angular Contact Bearing 

• Two bearing are required to take thrust load in both directions.
• It is necessary to install the angular contact bearing without any axial play.
• First preloading is necessary for the angular contact bearing.

Application are Angular Contact Bearing used in

It is used in variety of application. This bearing are use in high speed, high precision application for:

• Agriculture
• Chemical
• General industry
• Utilities

Cylindrical Roller Bearing | Advantages | Uses

The fundamental design of cylindrical roller bearing consists of cylindrical rollers in linear contact with the raceways. The line contact of a roller bearing is used in place of the point contact of a ball bearing when the maximum load carrying capacity in a given space is needed. The cage guides and positions the compared short rollers in a cylindrical roller bearing. This bearing are suitable for high speed rotation due to the low friction between the ring ribs and rollers. 

Cylindrical Roller Bearing

Following  are the Advantages of Cylindrical Roller Bearing

• Due to line contact between rollers and races, the radial load carrying capacity of the cylindrical roller bearing is very high compared to ball bearing.
• Compared to ball bearings, cylindrical roller bearings are more rigid.
• Cylindrical Roller Bearing are easy to install, slim and save space and weight.
• In high speed applications, there is minimal frictional loss and a low coefficient of friction. Cylindrical Roller Bearing faster speeds than other types of roller bearing.
• Cylindrical Roller Bearing comes in several sizes and material, and they have straight outside and inside diameters.

Following are the Disadvantages of Cylindrical Roller Bearing

• Cylindrical Roller Bearing cannot take thrust load.
• Cylindrical Roller Bearing is not self aligning.
• Cylindrical Roller Bearing cannot tolerate misalignment. Precise alignment between the shaft's axis and the housing's bore is required.
• Cylindrical Roller Bearing generates more noise.

Application are Cylindrical Roller Bearing used in:

It is used in variety of applications. Following are the application of Cylindrical Roller Bearing:

• Mining
• Machine tool
• Power Transmission
• Power Generation

What is Bearing? Types | Uses | Applications

A bearing is a mechanical component that reduces friction and allows relative motion between two parts, such as shaft and the housing. The function of bearing are follows. 

Function of bearing

• The bearing ensures that the shaft or the axle rotates freely with minimum friction. 
• The bearing supports the shaft or the axle and holds it in the proper place. 
• The bearing absorbs the forces that act on the shaft or axle and transfers them to the frame or foundation. 
  

Depending on the direction of force acting on them, bearings are categorized in several ways. Below, we can examine the many types of bearings. 

Types of bearing

• Radical bearing
• Thrust bearing

Radical bearing supports the load, which is perpendicular to the axis of the shaft. While, Thrust bearing supports the load, which acts along the axis of the shaft. A Thrust bearing support the load, which at along the axis of the shaft.

Bearing are classify into two main groups: Sliding contact bearing and rolling contact bearing. Sliding contact bearing are also called plain bearing, journal bearing or sleeve bearing. Rolling contact bearing are also called antifriction bearing or simply ball bearings. 

Sliding contact bearing

In this case, the surface of the shaft slides over the surface of the bush resulting in friction and wear. In order to reduce the friction, these two surface are separated by a film of lubricating oil. 

      (a) Sliding Contact Bearing

Sliding contact bearing are used in the following applications

• Crankshaft bearing in petrol and diesel engines
• Centrifugal pumps
• Large size electric motors
• Steam and gas turbines 
• Concrete mixers, rope conveyers and marine installations

Following are the advantages sliding contact bearing

• The shaft has simple design.
• They are less expensive.
• They are more silent in operation
• They are more compact.
• They have good shocks load capacity
• Suited for medial and high speed operation

Following are the disadvantages of sliding contact bearing

• Frictional power loss is considerable.
• They required careful attention to lubrication.
• They are normally design to carry  radial load or axial load only.

Types of Sliding Contact Bearing

1. Slipper Bearing 
2. Journal or Sleeve Bearing
3. Thrust Bearing

Rolling contact bearing

Rolling element such as balls or rollers, are introduced between the surfaces that are in relative motion. In this type of bearing sliding friction is replaced by rolling friction. 

(b) Rolling Contact Bearing

Rolling contract bearing are used in the following applications

• Machine tool spindles
• Automobile front and rear axels
• Gear boxes
• Small size electric motor
• Rope sheaves crane hooks and hoisting drums

Following are the advantages of Rolling contact bearing

• Rolling contact bearing is a simple lubrications.
• These type of bearing are simple to replace.
• Overall dimension is small.
• Cleanliness.
• It is low cost of maintenance.
• These type of bearing are supported to both radial and trust loads.
• These type of bearing structure are simple to maintain and compact.
• Frictional starting torque is less than the frictional running torque.

Following are the disadvantages of Rolling contact bearing

• High initial cost
• Limited life span
• This type of bearing is lower capacity to withstand stocks

Following are the types of Rolling contact bearing

1. Deep Groove ball Bearing
2. Cylindrical Roller Bearing
3. Angular contact Bearing
4. Taper Roller Bearing
5. Thrust Ball Bearing