Difference Between Ball Bearing And Roller Bearing
Difference Between Ball Bearing And Roller Bearing
2021年12月14日
Needle Bearing
Needle Bearing
2021年12月14日

wholesale Ball Bearing

The ball bearing changes the friction mode of the bearing and adopts rolling friction.

This mode more effectively reduces the friction between the bearing surfaces, effectively improves the service life of the fan bearing, and therefore prolongs the service life of the radiator. The disadvantage is that the process is more complex, resulting in higher cost and higher working noise.

Ball Bearing

How to select SKF Bearing type and type

When selecting SKF bearings,

we should select whether SKF bearings meet our mechanical application range according to the size, specification and speed of SKF bearings. Here is a simple analysis: First, size constraints. Generally, the space where SKF bearings can be installed is limited. In most cases, the shaft diameter (or SKF Bearing inner diameter) is limited by mechanical design or other design. Therefore, the selection of SKF Bearing type and size is determined according to the inner diameter of SKF Bearing. Therefore, the main dimension tables of standard SKF bearings are prepared according to the international standard inner diameter dimensions.

Standard SKF bearings have a wide range of sizes and forms,

Standard SKF bearings are used in the design of mechanical devices (this is designed to make SKF bearings easy to purchase. Here’s a digression. Some SKF bearing catalog models do have some, but some non-standard SKF bearings are not available in Chinese mainland, and sometimes futures will be very long time. So when SKF bearing is selected, the cost of SKF and the load of SKF replacement should be considered. The load applied to SKF bearings will be very high. , its nature, size and direction are changeable.

In general, the rated base load is shown on the dimension table.

However, axial load and radial load are also important factors in selecting suitable SKF bearings. When the ball and needle roller SKF bearings have the same size, needle roller SKF bearings usually have high load capacity and bear large vibration and impact loads.
Second, speed. The allowable speed is determined according to the type, size, accuracy, cage type, load, lubrication mode, cooling mode and other factors of SKF Bearing. The SKF Bearing table lists the allowable speed of standard precision SKF Bearing under oil lubrication and grease lubrication. Generally, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation.

Again, SKF Bearing tolerance.

The dimensional accuracy and rotation accuracy of SKF Bearing are based on ISO and JIS standards. For machines requiring high precision and high-speed operation, it is recommended to use SKF bearings with precision of grade 5 or above. Deep groove ball bearings, centripetal thrust ball bearings or cylindrical roller bearings are suitable for machines with high operation precision. Rigid, when the contact surface of the rolling element and raceway of SKF Bearing is compressed, it will produce elastic deformation. Some machines need to minimize elastic deformation. Roller bearings produce less elastic deformation than ball bearings.

In addition, in some cases, SKF bearings are preloaded to increase rigidity.

This procedure is usually used for deep groove ball bearings, centripetal thrust ball bearings and tapered roller bearings. Inner and outer ring offset, shaft bending, tolerance change of shaft or SKF Bearing housing, and matching error will lead to inner and outer ring eccentricity. In order to prevent excessive eccentric angle, self-aligning ball bearing, self-aligning roller SF bearing, or self-aligning bearing seat are better choices. Voice frequency and torque, rolling bearings are manufactured according to high-precision standards, so voice and torque are small. Deep groove ball bearings and cylindrical roller bearings are suitable for occasions with special requirements for low noise and low torque.

Installation and disassembly.

Some applications require frequent disassembly and installation to ensure regular inspection and maintenance. SKF bearings with separate inner and outer rings, such as cylindrical bearings, needle roller bearings and conical bearings, are very suitable for this occasion. With the help of the shaft sleeve, the installation procedure of the taper hole self-aligning ball bearing and self-aligning roller bearing is also simplified.