Compact Ultra Low Friction Ball Bearings , 634ZZ Bearing Deep Groove

634-ZZ Deep Groove Ball Bearing: Ultra-Compact, High-Speed & Low Noise

I. Product Overview

The 634-ZZ deep groove ball bearing is a widely used basic component in the field of mechanical transmission, especially suitable for small mechanical systems with high requirements for equipment volume, operation accuracy and stability. Its compact structural design enables it to operate efficiently in limited space, providing reliable support for the stable operation of equipment. The bearing can not only bear radial loads but also has a certain axial load-bearing capacity under specific working conditions. With excellent performance, it has become an indispensable key component in many precision equipment and small machinery. In practical applications, the 634-ZZ deep groove ball bearing is commonly used in fields such as micro motors, small instruments and meters, portable devices, small household appliances, and some medical equipment, effectively ensuring the accurate operation of core components of equipment and realizing efficient and stable transmission of power.

II. Structural Design

1. Precise Cooperation between Balls and Raceways: The 634-ZZ deep groove ball bearing uses high-precision steel balls as rolling elements inside. These steel balls undergo multiple precision grinding processes, with extremely smooth surfaces and dimensional accuracy strictly controlled within a very small tolerance range, ensuring smooth rolling without jamming in the deep groove raceways of the inner and outer rings. The depth and radian of the raceways are optimally designed according to mechanical principles, so that the contact area between the steel balls and the raceways is reasonably distributed. During the operation of the equipment, when subjected to radial or axial forces, the steel balls will respond quickly, flexibly adjust their positions in the raceways, and evenly distribute the load to the inner and outer rings through multi-point contact, which greatly reduces local stress concentration, ensures that noise and vibration during bearing operation are maintained at an extremely low level, and effectively prolongs the service life of the bearing.

2. Sealing Structure Design: The "ZZ" in the model indicates that the bearing adopts a double-sided metal dust cover sealing structure. The dust cover is formed by precision stamping of high-quality thin metal sheets and is tightly installed on both sides of the bearing through a special process. This sealing design is like building a solid protective barrier for the inside of the bearing, which can effectively block the intrusion of foreign objects such as dust, impurities, and debris, prevent wear and pollution to the steel balls and raceways, and significantly improve the reliability of the bearing in complex working environments. In addition, before leaving the factory, the inside of the bearing is filled with an appropriate amount of high-performance grease. Under the tight protection of the dust cover, the grease can continuously and stably provide good lubrication for the steel balls and raceways, reduce friction loss during equipment operation, and lower maintenance frequency and cost.

III. Dimensional Specifications

IV. Performance Advantages

1. Reliable Bearing Capacity: Although the 634-ZZ deep groove ball bearing is small in size, it has excellent radial load-bearing performance with its carefully designed structure and high-quality materials. At the same time, it can also cope with axial loads to a certain extent. Taking micro motors as an example, during the operation of the motor, the bearing can stably bear the radial electromagnetic force generated by the motor rotor and the axial force caused by the rotor's own weight and unbalanced operation, ensuring the stable and high-speed rotation of the motor rotor and maintaining the efficient and reliable operation of the motor.

2. Low Friction and High-Speed Performance: Deep groove ball bearings themselves have a low friction coefficient, and the 634-ZZ model further reduces the friction coefficient through more precise processing of steel balls and raceways and special heat treatment processes. This makes the bearing have greatly reduced energy loss and significantly less heat generation during operation, and can easily adapt to the working requirements of higher rotational speeds. In equipment such as small high-speed fans and rotating components of precision instruments, the bearing can operate stably to achieve efficient power transmission. Its low friction characteristic not only helps to improve the energy utilization efficiency of the equipment but also effectively reduces the temperature of the equipment during operation, ensuring long-term stable operation of the equipment.

3. Excellent Operational Stability: Advanced precision manufacturing technology ensures that the matching accuracy between various parts of the 634-ZZ deep groove ball bearing reaches a very high level, so that the rolling trajectory of the steel balls in the raceways remains stable, fundamentally reducing the generation of vibration and noise. The sealing structure of the double-sided dust cover not only enhances the ability to block foreign objects but also improves the structural rigidity of the bearing to a certain extent, further optimizing its operational stability. In small household appliances such as electric shavers and mini massagers, the stable operation performance of the bearing can effectively reduce the noise during equipment operation, create a quiet and comfortable use environment for users, and ensure the accurate operation of the equipment, improving user experience.

V. Application Fields

1. Micro Motor Industry: Widely used in various micro motors, such as toy motors, small fan motors, and precision instrument drive motors. As a supporting component of the motor rotor, the 634-ZZ deep groove ball bearing can ensure the stability of the rotor during high-speed rotation, effectively reduce vibration and noise, significantly improve the operating efficiency and reliability of the motor, extend the service life of the motor, and provide solid guarantee for the efficient operation of micro motors.

2. Small Instruments and Meters Field: In precision instruments such as small measuring instruments, portable analytical instruments, and electron microscope fine-tuning devices, the 634-ZZ deep groove ball bearing, with its characteristics of high precision, low noise, and stable operation, can meet the strict requirements of instruments for component precision and stability, ensure the accuracy of instrument measurement data and the precision of operation, and provide reliable support for the normal work of instruments.

3. Small Household Appliances Industry: Commonly used in the motor parts of small household appliances such as electric toothbrushes, mini juicers, and small vacuum cleaners. The advantages of low noise and long service life of the bearing make household appliances run more quietly and stably, effectively improving user experience, while reducing the probability of equipment maintenance and user use costs.

4. Medical Equipment and Portable Equipment Field: In the rotating parts of some small medical equipment such as hand-held physiotherapy instruments and portable ultrasonic diagnostic instruments, as well as the transmission mechanisms of various portable electronic equipment such as portable printers and small projectors, the 634-ZZ deep groove ball bearing can adapt to the working state of frequent start-up and stop, and ensure the normal operation of the equipment with its reliable performance, ensuring the safety and stability of the equipment in use.