In any automotive device or machinery, when a metal comes in contact with metal, friction is created. This causes wear and tear of the device and decreases its lifespan as well. Hence, to reduce the stress and friction between the metals, thrust bearings are widely used.
These are available in various varieties, size, design, and dimensions. Ball thrust bearings and roller thrust bearings are very commonly used. For the applications which need higher load capacities, roller thrust bearings are in great demand.
In the roller thrust bearing, flat washers are used while in the ball bearing, they are mostly grooved. Hence, they offer greater axial rigidity and frictionless movement of higher loads. The roller thrust bearing is composed of rolling elements which can be cylindrical, spherical, tapered or needle rollers. They are generally used in cars between rotating shafts, gears, etc as the rollers carry high amounts of axial loads. An oil-based lubricant is used and hence this type of bearings provides greater stability along with speed rate.
In roller thrust bearing, the rollers length is kept perpendicular with respect to the shaft. They are available in a plethora of shapes and sizes that affect the efficiency of these bearings directly. The roller bearings consist of two rings which are also popularly called as ‘washers’. These washers are configured with various sizes, designs, and shapes of the bearings.
Mechanism of Roller Thrust Bearing:
The roller thrust bearing mechanism works on a very simple and easy mechanism. These bearings continuously move and rotate. This helps to keep the device in forwarding direction without causing any type of friction or stress.
Types of Roller Thrust Bearings:
There are many types of roller thrust bearings but the tapered roller thrust bearings are very popular for a varied number of applications. The tapered bearings have conical rollers and are widely used for single or double-direction thrust loads.
Tapered Roller Thrust Bearing:
Amongst all the thrust roller bearing, tapered roller bearings are commonly used in automotive machines. They have small rollers which are tapered and arranged to converge the axes of the rollers at a point on the bearing’s axis. Very carefully, angle, length, and diameters of rollers are calculated so as to get the correct taper. This allows smooth movement of the rollers on the face of bearings without any skid. Double row taper roller bearing possesses higher stiffness and load carrying capacity.
The taper lock bearing design is used in various applications and is available in various sizes and dimensions.