Boundary dimensions (mm) |
Mass (kg) |
Bearing NO. | |||
d | D | B | WSBC | ||
65 | 120 | 23 | 1.2 | QJ213 | |
65 | 140 | 33 | 2.7 | QJ313 | |
70 | 125 | 24 | 1.3 | QJ214 | |
70 | 150 | 35 | 3.1 | QJ314 | |
75 | 130 | 25 | 1.45 | QJ215 | |
75 | 160 | 37 | 3.9 | QJ315 | |
80 | 140 | 26 | 1.85 | QJ216 | |
80 | 170 | 39 | 4.6 | QJ316 | |
85 | 150 | 28 | 2.25 | QJ217 | |
85 | 180 | 41 | 5.54 | QJ317 | |
90 | 160 | 30 | 2.75 | QJ218 | |
90 | 190 | 43 | 6.45 | QJ318 | |
95 | 170 | 32 | 3.35 | QJ219 | |
95 | 200 | 45 | 7.45 | QJ319 | |
100 | 180 | 34 | 4.05 | QJ220 | |
100 | 215 | 47 | 9.3 | QJ320 | |
105 | 190 | 36 | 10.1 | QJ221 | |
110 | 200 | 38 | 5.6 | QJ222 | |
110 | 240 | 50 | 12.5 | QJ322 | |
120 | 215 | 40 | 6.95 | QJ224 |
Overview of Four Point contact ball bearings
Four Point contact ball bearings are radial single row angular contact ball bearings with raceways that are designed to support axial loads in both directions. For a given axial load, a limited radial load can also be supported (Load ratio). The bearings are separable, i.e. the outer ring with ball and cage assembly can be mounted separately from the two inner ring halves.
A four-point contact ball bearing can accommodate axial loads in both directions, in combination with radial loads up to a certain level, and provides a very tight axial shaft position tolerance. The bearing also saves space, because it can be seen as the combination of two single row angular contact ball bearings into one. Therefore, it is an excellent choice in applications such as industrial gearboxes, locomotive drives, and compressors.
Product Features and Benefits:
-Accommodates axial loads in both directions
-Less axial space
-These bearings take up considerably less axial space than double row bearings.
-High load-carrying capacity
-A large number of balls are incorporated, giving the bearing its high load-carrying capacity.
Separable design
-The split inner ring leads to easier mounting and dismounting of the bearing.
Improved oil flow
-Limited inner ring deformation when subjected to high clamping forces
Applications of Four Point contact ball bearings:
A four-point contact ball bearing makes it easy to simplify machine designs that have a combination of radial, thrust, and moment loads because it can handle all three simultaneously. They are primarily used for slow to moderate-speed applications, or where oscillatory movement is predominant.
Four-point contact ball bearings are used in various applications, for example:
- agricultural machinery;
- earthmoving machinery;
- pumps;
- industrial machinery for cleaning and bottling;
- electric motors;
- fitness machines;
- machining equipment (steel, glass, marble, wood,);
- automatic opening systems;
- etc.
Wuxi Spark Bearing Co., Ltd (Aka Spark Bearings) is the complete, one-stop Four Point contact ball bearings supplier & manufacturer. All products are qualified and have passed the ISO 9001 qualification. Here are some popular types of Four Point contact ball bearings like Four Point contact ball bearings type1, Four Point contact ball bearings type 2, Four Point contact ball bearings type 3. Send a quote and get the latest price of cheap Four Point contact ball bearings from Spark Bearings.