603ZZ Mini Deep Groove Ball Bearing Low Vibration Instrument Precision Bearings

Product Specification

603ZZ Deep Groove Ball Bearing: Ultra-Mini, High-Speed & Low Noise

I. Product Overview

The 603ZZ deep groove ball bearing is a miniaturized precision component in the deep groove ball bearing series. With its compact structure and reliable performance, it occupies an important position in the field of micro mechanical transmission. It can adapt to equipment with limited space, while meeting high requirements for operation accuracy and stability, providing solid support for the efficient operation of various small equipment. It has a wide range of applications, covering multiple fields such as micro motors, precision instruments, small electronic products, and medical devices, and is a key component to ensure the precise transmission of core parts of small equipment.

II. Structural Design

1. Rolling Elements and Raceways: High-precision steel balls are used as rolling elements inside the bearing. The steel balls undergo multiple precision grinding processes, with extremely high surface smoothness and dimensional tolerances controlled within a very small range. They perfectly match the deep groove raceways of the inner and outer rings. The radian and depth of the raceways are accurately calculated to ensure uniform contact area when the steel balls roll, which can efficiently disperse radial and certain axial loads. When the equipment is under force during operation, the steel balls roll flexibly in the raceways and transmit the 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 tightly block the intrusion of dust, water vapor, impurities, etc. into 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 from 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 603ZZ deep groove ball bearing has an extremely low friction coefficient. Thanks to the precision manufacturing process and the selection of high-quality materials, it can maintain stable operation under high-speed working conditions. In micro high-speed motors, it can easily cope with the high-speed rotation of the rotor, realizing efficient power transmission, and generating little heat during operation, effectively reducing the risk of equipment failure caused by overheating.

2. Reliable Bearing Capacity: Although small in size, with reasonable structural design and high-strength materials, the bearing performs excellently in bearing radial loads and can also bear a certain degree of bidirectional axial loads. In small 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 matching accuracy 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 with strict requirements on the operating environment, such as micro 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. Micro Motor Field: Widely used in various micro motors, such as small fan motors, precision instrument drive motors, toy motors, etc. As a supporting component for motor rotors, it can ensure the stability of the 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.

2. Precision Instrument Industry: In precision equipment such as micro measuring instruments, electron microscopes, and small sensors, the 603ZZ deep groove ball bearing, with its characteristics of high precision and low noise, meets the strict requirements of the equipment for component precision, ensuring the accuracy of instrument measurement data and the stability of operation.

3. Small Electronic Products: Commonly used in the transmission components of small electronic devices, such as the paper feeding mechanism of portable printers and the lens adjustment device of small projectors. Its compact structure and stable performance can adapt to the design requirements of miniaturization and lightweight of equipment, ensuring the normal operation of the equipment.

4. Medical Device Field: In small medical devices, such as micro infusion pumps and portable physiotherapy instruments, the bearing can meet the requirements of the equipment for operation stability and low noise, ensuring the safe and reliable use of medical devices and improving the user experience of patients.

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, or heavy dust, it is necessary to regularly check the state of the grease. If it 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: Regularly conduct a visual inspection of the bearing to check 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.