Dentist's "weapon" dental mobile phone - dental drill bearing

First, let's take a look at what a dental drill bearing is, also known as a high-speed turbine dental drill mobile phone bearing. The implication is that it is a bearing used on a dentist's mobile phone. The working principle of the dental drill bearing produced by Yunyun Bearing is that the turbine, bearing and shaft are interference fit and the compressed air drives the overall high-speed rotation, driving the spring chuck and drill installed in the shaft hole to work.

• What are the categories of dental drill bearings usually divided into:

1. Ordinary type, the main models are: SR144TL; SR144TLZ; SR144TLZ1.
2. With thrust flange type, the main models are: SFR144TL; SFR144TZ; SFR144TLZ1.
3. With step type, the main models are: SR144TLK; SR144TLKZ; SR144TLKZ1.
4. Special appearance, the main models are: SR144TLLZ1W02; SR144TLKZW02, etc.

• Classification of dental drill bearings based on appearance:

1. Radial ball bearings- deep groove ball bearing.
2. Angular contact bearing.

• Materials of dental drill bearings:

1. The inner and outer rings of dental drill bearings are made of refined stainless steel (9CR18MO).
2. The ball is made of refined stainless steel (AIS440C) or non-metallic superhard ceramic (SI3N4) with good wear resistance;
3. The cage is made of polyimide material or 80-120 phenol cloth bakelite material with high strength, low friction and self-lubricating properties. The bearing can reach a speed of 350000-450000rPM under 200-500KPA air pressure. Under normal use conditions, the bearing has a working life of more than 6 months.

• What are the applicaitons and characteristics of dental drill bearings?

Applications:

The high-precision and high-speed ceramic ball bearings produced are suitable for most dental/medical applications. These dental drill bearings are of very high quality and precision, with dimensional tolerances exceeding ABEC-7 (high-speed instrument bearings)

Features:

1. Extremely high speeds. These bearings use an extreme super-finishing process to improve the surface finish and relative roundness of the inner and outer raceways of the bearings, thereby maintaining higher speeds throughout the life of the mobile phone
2. Longer warranty period. Dental drill bearings are always used in relatively harsh environments. Repeated disinfection, grease flow and improper operation often cause them to fail prematurely. The improved product quality enables mobile phone manufacturers to significantly extend their warranty period.
3. Lower noise. Letyun dental drill bearings use a compact integral dust cover design and more precise tolerances to achieve lower bearing noise.
4. Longer life. Our bearings use higher precision tolerance grades and special seal designs to ensure that grease is not consumed prematurely, which ensures that our bearings have a longer life.
5. Reliable materials. Inner and outer rings made of AISI 440C stainless steel; ceramic balls (Si3N4) or stainless steel balls; Torlon (polyamide-imide)