6805ZZ Industrial Deep Groove Ball Bearing Manufacturers 25x37x7 Bearing

6805ZZ Deep Groove Ball Bearing: High-Load, Low Noise & Stable For Industrial Use

I. Product Overview

The 6805ZZ deep groove ball bearing is an important and widely used model in the deep groove ball bearing series. With its excellent comprehensive performance, it occupies a key position in medium and large mechanical transmission systems. Its dimensional design of 25mm inner diameter, 37mm outer diameter, and 7mm thickness balances structural compactness and load-carrying capacity, making it suitable for various equipment that has requirements for installation space and transmission efficiency, providing strong support for the stable operation of the equipment. It is widely used in fields such as industrial machinery, automated production lines, precision instruments, ventilation equipment, medical devices, and office equipment, and is an important basic component to ensure the efficient transmission of core parts of these equipment.

II. Structural Design

1. Rolling Elements and Raceways: The bearing uses high-strength steel balls with precision processing as rolling elements inside. These steel balls have extremely high surface smoothness and precise dimensional tolerance control, ensuring good consistency. The deep groove raceways of the inner and outer rings are optimally designed to form a perfect fit with the steel balls. The radian and depth of the raceways are accurately calculated, enabling the steel balls to have uniform contact when rolling, efficiently dispersing radial loads, and at the same time, being able to bear a certain axial load. During the operation of the equipment, the steel balls transmit force smoothly through multi-point contact, reducing local wear, and ensuring the stability and low-noise characteristics of the bearing operation.

2. Sealing Structure: The "ZZ" in the model indicates that the bearing is equipped with a double-sided metal dust cover sealing structure. The dust covers are made of high-quality thin metal sheets through precision stamping, closely fitting on both sides of the bearing to form an effective protective barrier. This structure can reliably block dust, water vapor, impurities, and other foreign objects from entering the bearing, avoiding contamination and wear of the steel balls and raceways. At the same time, it protects the high-performance grease filled inside from loss and deterioration, extending the lubrication cycle and service life of the bearing, and reducing equipment maintenance costs.

III. Performance Characteristics

1. Excellent High-Speed Performance: The 6805ZZ deep groove ball bearing adopts advanced manufacturing processes and high-quality materials, with a low friction coefficient, and can maintain stable operation under relatively high-speed working conditions. In equipment such as ventilation equipment motors and small transmission motors, it can easily cope with the high-speed rotation of the rotor, achieve efficient power transmission, and generate little heat during operation, effectively reducing the risk of equipment failure caused by overheating.

2. Strong Load-Carrying Capacity: With the help of reasonable structural design and the application of high-strength materials, the bearing has strong radial load-carrying capacity and can also bear a certain degree of bidirectional axial load. In medium and large transmission mechanisms, it can not only stably support the rotation of the shaft to cope with radial forces but also resist axial forces generated by equipment operation, ensuring the continuous and stable operation of the equipment under various working conditions.

3. Low Noise and Low Vibration Performance: The precision processing technology ensures the high-precision fit of various parts of the bearing. The rolling trajectory of the steel balls in the raceways is stable and orderly, greatly reducing vibration and noise. In precision instruments and office equipment with high requirements for the operating environment, such as high-precision testing instruments and large printers, the bearing can ensure quiet operation of the equipment without affecting the normal working accuracy and user experience of the equipment.

IV. Application Fields

1. Industrial Machinery Field: Widely used in the transmission components of various industrial machinery, such as small reducers and auxiliary supports for machine tool spindles. Its stable performance and reliable load-carrying capacity can ensure the efficient operation of machinery and improve production efficiency.

2. Automated Production Lines: Commonly used in parts such as conveying equipment and robotic arm joints of automated production lines. It can adapt to the high-speed operation requirements of the production line, ensure the positioning accuracy and operation stability of the equipment, and provide strong support for automated production.

3. Ventilation and Heat Dissipation Equipment: Plays an important role in the motors of ventilation fans, cooling fans, and other equipment. With its high-speed adaptability and low-noise characteristics, it ensures efficient heat dissipation of the equipment and reduces the impact of operating noise on the environment.

4. Medical Device Industry: Applied in some medium-sized medical devices, such as rehabilitation equipment and small diagnostic instruments. Its stable operation performance and low-noise characteristics can meet the requirements of medical devices for reliability and safety, ensuring the normal use of the equipment.

5. Office Equipment Scenarios: In the transmission mechanisms of large printers and copiers, the compact structure and stable performance of the bearing ensure the smooth operation of the equipment, adapting to the needs of frequent start-stop and long-term work of the equipment, and improving office efficiency.

V. Dimensions and Specification Parameters

VI. Maintenance Points

1. Lubrication Management: The bearing is pre-filled with an appropriate amount of high-performance grease at the factory, and no frequent addition is required in normal working environments. However, in harsh working conditions such as high temperature, high humidity, and heavy dust, it is necessary to regularly check the state of the grease. If the grease is found to be dry, discolored, or mixed with impurities, the suitable grease should be replaced in time, and the filling amount should be moderate to ensure a good lubrication effect.

2. Regular Inspection: Establish a regular inspection system to conduct visual inspections of the bearing, checking whether the dust covers are intact and whether there are any damages, deformations, or looseness. Use professional instruments to monitor the vibration and temperature of the bearing during operation. If the vibration increases abnormally or the temperature exceeds the normal range (usually, the normal working temperature is 10-20℃ higher than the ambient temperature), it is necessary to stop the machine immediately for inspection, investigate the cause of the fault, and repair or replace it in time to prevent the fault from expanding.

3. Installation Notes: Ensure a clean environment during installation to avoid foreign objects entering the inside of the bearing. Use appropriate installation tools and operate in accordance with the correct installation method to ensure that the matching accuracy between the bearing and the shaft and bearing seat meets the requirements. Avoid impact damage to the bearing during installation to ensure its normal operation and performance.