What Is Servo Motor Bearings

Servo motor bearings are key components that support the motor rotor and have an important impact on the operating efficiency and performance of the servo motor.

Types of servo motor bearings

Deep groove ball bearings: it can withstand relatively high radial and axial loads, common models include 60 series, 62 series, etc. This type of bearing is mainly used in the support parts of the front and rear ends of the motor rotor, and in servo equipment that requires high speed and low noise.

Angular contact ball bearings: it has a relatively high load-bearing capacity and can withstand high speed and complex loads. They have a relatively small radial space and are very useful in limited installation spaces. Their accuracy levels can reach P5 and P4,P2 and they are suitable for use in servo motors that require high speed and high precision. Common models include 70 series, 72 series, etc.

Cylindrical roller bearings: They have strong radial and axial load bearing capacity and are often used in situations with large radial and axial loads to help servo motors bear large working loads. Common models include N series, NN series, etc.

Self-aligning ball bearings: They have good self-aligning ability and can be automatically self-aligning. They are suitable for use in situations where the shaft and the bearing seat hole are not concentric or the shaft is deformed.

Function of servo motor bearings

Support the rotor: Bearings are installed at the front and rear ends of the motor rotor to support the rotor and enable it to rotate smoothly.

Bearing load: The bearing can bear the radial and axial loads generated when the rotor is running, ensuring the stable operation of the motor.

Reduce friction: By rolling or sliding, the lubricating oil film is used to reduce the friction between the rotor and the stator, thereby reducing energy loss and noise.

Improved precision: High-precision bearings can ensure the coaxiality and rotation accuracy of the motor rotor, thereby improving the overall performance of the motor

Selection requirements for servo motor bearings

When selecting servo motor bearings, the following factors need to be considered:

1. Equipment use and assembly occasions: Select the appropriate bearing type according to the specific use and assembly occasions of the servo motor

   2. Wear resistance: The servo motor needs to run continuously for a long time, and the friction between the bearing and the shaft will generate heat. Therefore, the selected bearing should have sufficient wear resistance to ensure the service life of the motor and stable working efficiency.

   3. Precision and rigidity: For servo motors that require high precision and high rigidity, a bearing type with a higher precision grade should be selected.

   4. Load and speed: Select the appropriate bearing model and specification according to the load and speed requirements of the servo motor.

The maintenance of Servo motor bearing

To ensure the normal operation and extend the service life of the servo motor bearings, regular maintenance and care are required. Specific measures include:

1.  Regular inspection: Regularly check the bearing wear, lubrication, and whether there are abnormal phenomena such as abnormal noise, high temperature, etc.

2.  Lubrication and maintenance: Perform lubrication and maintenance according to the bearing usage and manufacturer's recommendations to ensure that the bearing is well lubricated.

3.  Cleaning and maintenance: Clean the dust, oil and other debris on the servo motor in time to ensure that the bearings are in a clean state.

4. Avoid impact: When installing or removing the coupling components at the shaft end of the servo motor, avoid hitting the shaft end directly with a hammer to avoid damaging the bearing and encoder.

Servo motor bearings are widely used in many fields.

In the field of industrial automation, servo motor bearings are commonly used in automation equipment such as robots, CNC machine tools, packaging machinery and printing equipment. Due to its fast response and precise positioning characteristics, servo motors can significantly improve production efficiency and product quality. In the field of electronic equipment, servo motors play an important role in semiconductor manufacturing equipment, display equipment, and medical equipment, ensuring the stability and reliability of the equipment.

In the field of transportation, servo motor bearings are widely used in control systems, navigation systems and safety systems of vehicles such as cars, airplanes and ships to improve driving safety. In the field of printing and packaging, the high speed, high precision and high reliability of servo motors make them widely used in printing machines and packaging machines, improving production efficiency.

In addition, servo motor bearings are also widely used in the field of robots. As the core component of robot joint drive, they can realize flexible movement and accurate positioning of robots and are widely used in industrial production, medical care and military fields.

The high precision, high speed and high efficiency of servo motors make them widely used in various fields. The applicable fields of servo motors have very strict requirements on the bearings themselves. When purchasing servo motor bearings, you need to ensure the bearing quality requirements.

TKW focus on produce High Precision Bearings used in Servo Motor. Servo motor bearings mainly include deep groove ball bearings (6300, 62200, 62300) and angular contact ball bearings (7000, 7200). The characteristics of this type of bearings are high speed, low noise, high precision, high load, precision level P5, P4,P2 Grade.

Common models include B25-254-2RS/P4, B25-225-2RS/P4, EPB50-67-2RS/P4, EPB-60-47-2RS/P4, B40-180-2RS/P4, B40-185-2RS/P4, B40-188-2RS/P4, F-568217-2RS/P4, F-568240-2RS/P4, F-568241-2RS/P4, F-563087-2RS/P4, F-563088-2RS/P4, etc.