Characteristics Of Angular Contact Ball Bearings
Characteristics Of Angular Contact Ball Bearings
2021年12月18日
Different Characteristics Between Vibration Bearing And Ordinary Bearing
Different Characteristics Between Vibration Bearing And Ordinary Bearing
2021年12月18日

Use Of Variable Speed Bearing

1. refer to the outline

and connection dimensions of variable speed transmission bearing.

2. The variable speed bearing

drive bearing can be placed horizontally, vertically or obliquely. It can rotate forward and backward. Variable Speed Bearing Positive and negative input and output power (i.e. deceleration or acceleration) can be used.

3. No matter what installation method

is adopted, the variable speed bearing and its connecting parts have dimensional matching requirements.

Recommended: Variable Speed Bearing The fit between inner ring hole D and shaft shall be H7 / H6;

The fit between the pin hole do on the middle ring and the transmission is H7 / R6;

The fit between the outer ring D and the shell is H8 / H7;

Clearance fit is adopted for the fit between the transmission and the upper hole of the output shaft, and the clearance is 0.2 ~ 0.5mm.

4. Axial positioning of variable speed drive bearing:

Variable Speed Bearing after axial positioning of any one of the three circles, the other two shafts do not need axial positioning.

5. Rotation direction positioning;

The outer ring and inner ring Variable Speed Bearing are positioned by flat keys. The middle ring is positioned by transmission

Use Of Variable Speed Bearing

6. Variable speed drive bearing

Variable Speed Bearing can bear small external force in radial direction, but it is not suitable to bear large working load.

7. The transmission ratio is the transmission ratio

Variable Speed Bearing when installed in different ways. If other installation methods are adopted, the transmission ratio shall be calculated.

8. Under the rated speed

(1500rpm), the model of variable speed bearing is selected according to the transmission ratio and required power (kw).

9. When based on

the working torque, the Variable Speed Bearing model shall be selected accordingly.

10. The selection of reducer model

is consistent with the Variable Speed Bearing model of variable speed transmission bearing.

Characteristics of angular contact ball bearings

Characteristics Of Angular Contact Ball Bearings

Angular contact ball bearing

namely radial thrust ball bearing, can be loaded with more steel balls, its radial bearing capacity is greater than that of ordinary ball bearing, and can also bear large axial load or pure axial load at the same time.

Its allowable working speed is similar to that of deep groove ball bearing and its support rigidity is stronger, but it requires accurate installation and is very sensitive to axis misalignment error,

Generally, it does not need to bear the radial load alone, but it must bring additional axial load while bearing the radial load. This kind of bearing has many variants and is widely used. It is often made into three series with 15 °, 25 ° and 40 ° contact angles.

The larger the contact angle is, the higher its axial load capacity is. However, it is appropriate to use a small contact angle at high speed.

Most of these bearings

are used in pairs for small-span rigid double support shafts or precision spindles. When in use, the clearance should be carefully adjusted. By changing the axial distance between the inner and outer rings of the bearing, the internal clearance of the bearing can be adjusted.

At the same time, several sets of bearings can be installed in parallel and given a certain pre interference, which can improve the rigidity of the bearing system.

A single bearing

of this type can only bear the axial load in one direction. At the same time, other bearings need to be configured to offset their additional axial forces. When installed in pairs, their additional axial forces offset each other, and they can bear the axial load of two forces upward, and have strong axial limit capacity in two directions,

Generally, two sets of bearings are installed in pairs, with their outer ring wide end face opposite (back-to-back) or narrow end face opposite (face-to-face), in which the rigidity of the back-to-back installation bearing system. In order to facilitate installation in pairs or groups, some bearing factories supply bearings in pairs, three sets in groups and four sets in groups.

In this way, the processing consistency of the supplied bearings in the same batch is good, the load is borne more evenly during use, and the additional axial forces offset each other more thoroughly.