6803ZZ Precision Ball Bearing Deep Groove 17x26x5 Bearing Compact

6803ZZ Deep Groove Ball Bearing: Compact, High-Speed & Low Noise for Precision

I. Product Overview

The 6803ZZ deep groove ball bearing is an important member of the deep groove ball bearing series. With its unique design and excellent performance, it plays a key role in small and medium-sized mechanical transmission systems. It has a dimensional design of 17mm inner diameter, 26mm outer diameter, and 5mm thickness, with a compact structure that can well adapt to equipment with limited space, providing stable support for the efficient operation of the equipment. It is widely used in various fields such as industrial automation equipment, precision instruments, small motors, medical devices, and office equipment, and is an important component to ensure the precise transmission of core parts of these equipment.

II. Structural Design

1. Rolling Elements and Raceways: High-precision steel balls are used as rolling elements inside the bearing. These steel balls undergo multiple precision grinding processes, with extremely low surface roughness and dimensional tolerances controlled within a very small range, ensuring a high degree of consistency. The deep groove raceways of the inner and outer rings are accurately calculated and optimally designed to perfectly fit the steel balls. When the equipment is running, the steel balls roll in the raceways with a uniform contact area, which can efficiently disperse radial loads and bear certain axial loads at the same time. They smoothly transmit force through multi-point contact, reducing local wear and ensuring the stability and low noise 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 a solid protective barrier. This structure can effectively block dust, impurities, water vapor, 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 pre-filled high-performance grease inside, preventing its loss and deterioration, prolonging the lubrication cycle and service life of the bearing, and reducing equipment maintenance costs.

III. Performance Characteristics

1. High-Speed Adaptability: The 6803ZZ deep groove ball bearing adopts advanced manufacturing processes and high-quality materials, with an extremely low friction coefficient, enabling it to operate stably under high-speed working conditions. In equipment such as small high-speed motors, it can easily cope with the high-speed rotation of the rotor to achieve efficient power transmission, and generates little heat during operation, effectively reducing the risk of equipment failure caused by overheating.

2. Reliable Bearing Capacity: Although not large in size, through reasonable structural design and the application of high-strength materials, the bearing has excellent radial bearing capacity and can also bear a certain degree of bidirectional axial load. In small and medium-sized 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.

3. Low Noise and Low Vibration: The precision processing technology ensures the high-precision fit between various parts of the bearing. The rolling trajectory of the steel balls in the raceways is stable and orderly, which significantly reduces vibration and noise. In precision instruments with strict requirements on the operating environment, such as high-precision measuring instruments, the bearing can ensure quiet operation of the equipment without interfering with measurement accuracy, providing a strong guarantee for the accurate work of the equipment.

IV. Application Fields

1. Industrial Automation Equipment: Widely used in small transmission devices of automated production lines, such as the drive shaft support of precision conveyors and the joint parts of small robotic arms. Its stable performance and high-precision operation can ensure the positioning accuracy and operating efficiency of automated equipment, improving production quality.

2. Precision Instrument Industry: Commonly used in precision instruments such as microscopes, laser measuring instruments, and small sensors. With its characteristics of high precision and low noise, it meets the strict requirements of instruments for component precision, ensuring the accuracy of instrument measurement data and the stability of operation.

3. Small Motor Field: It is an ideal supporting component for the rotors of various small motors (such as small water pump motors, fan motors, precision instrument drive motors, etc.). It can ensure the stability of the motor rotor during high-speed rotation, reduce vibration and noise, improve the operating efficiency and reliability of the motor, and extend the service life of the motor.

4. Medical Device Field: In small medical devices, such as portable blood pressure monitors and micro infusion pumps, the stable operation and low noise characteristics of the 6803ZZ deep groove ball bearing are crucial. It can ensure the safe and reliable use of medical devices during use, provide patients with a good user experience, and reduce the frequency of equipment maintenance.

5. Office Equipment Scenarios: In the transmission components of printers, the rotating mechanisms of copiers, and other office equipment, the compact structure and stable performance of the bearing play an important role. It can adapt to the needs of office equipment for frequent start-stop and long-term continuous work, ensure the normal operation of the equipment, and improve 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.