Application of miniature bearings in electric nail polisher

 Miniature bearings can also be widely used in the beauty industry.

Nail art is a work of decorating and beautifying finger (toe) nails, also known as nail art design. Nail art is a process of disinfection, cleaning, care, maintenance, modification and beautification of the nail (toe) according to the customer’s hand shape, nail shape, skin quality, clothing color and requirements. With the improvement of people’s quality of life, women’s demand for nail art is increasing. Special nail art tools came into being. The main tool is electric nail polisher. Electric nail polisher turns manual into mechanization. It used to take 30 minutes to remove nails, but now it can be done quickly in a few minutes, no matter it is ordinary nail polish. The glue is the extended phototherapy glue, which can be quickly and completely removed by just using a sander, and the whole process will make the guests feel very comfortable. Different sander drill bits can also replace dead skin scissors, rubbing strips and other tools for pre-treatment and care of hands and feet. This will not only greatly improve the manicurist’s manicure operation efficiency and increase customer flow, but also increase the professional service items in the store. Let the nail salon performance increase exponentially. The core component of the electric nail polisher is the miniature bearing. The miniature bearings that are used the most are MR106ZZ, MR148ZZ, and MR128ZZ.

The miniature bearings used in the electric nail polisher are not the ordinary bearings on the market that can adapt to its working conditions. They must have the following characteristics:

1. High speed, the maximum speed can reach 40,000 rpm, stepless speed regulation meets various speed requirements, and the forward and reverse rotation are adjustable. In view of this feature, the structure and configuration of the miniature bearing must be adjusted accordingly. Such as reducing the weight of the rolling elements, it can effectively reduce the centrifugal force of the rolling elements during high-speed rotation; using engineering plastic cages, which have a certain toughness, enhance the impact resistance of the cage, and a series of optimized designs. Without optimization of ordinary miniature bearings, the service life will be very short when used under such high-speed working conditions.

2. Low torque, good rotation flexibility, no screaming when the electric nail polisher starts or stops. The contact area between the rolling element and the raceway is reasonably optimized. The use of low-torque rolling grease can effectively reduce the rotational torque of the miniature bearing.

3. The temperature rise is low, which is a performance requirement of the bearing. Temperature rise is the key performance to determine the quality of all bearings. Miniature bearings used in electric nail polisher have strict requirements for temperature rise. The temperature rise exceeds the temperature of the human body, which will bring insecurity to manicurists and clients, and seriously affect comfort. Reducing the temperature rise is very important, and it is also a concentrated expression of the manufacturing level of miniature bearings. Bearing design, machining accuracy, surface roughness of raceways and rolling elements, grease, bearing clearance, etc. all affect the temperature rise of the bearing.

4. Low noise and low noise are the unchanging pursuit of bearings. The regular miniature bearing manufacturers who have requirements for quality have 100% full inspection of the bearings before they leave the factory. According to the ISO standard, the noise of the bearing is classified, the highest level is Z4 (no more than 24dB). The noise level of the miniature bearings used in the electric nail polisher is controlled to no more than 20dB, and the user experience is the best. The electric nail polisher will not feel dynamic when held in your hand.

5. High precision. The precision grade of miniature bearings used on electric nail polisher should be P5 and above. The higher the accuracy, the higher the matching accuracy and the corresponding reduction in noise and temperature rise.