Стоматологический инструмент/воздушная турбина/рентген/турбозарядное устройство/запасная часть для ремонта наконечника/Высокоскоростной и низкоскоростной подшипник

Freerun Group are professional manufacturer and exporter of Dental Bearing . Our Dental Bearing is good in quality and competitive in price. We supply OEM service of Dental Bearing for you. We would manufacture Dental Bearing following your specific requirement.

1. Dental Bearing Type:

S type (Smooth) Smooth Outer Ring

Stepped (Groove) in outer ring

F type (Flanged) With Flanged in outer ring

U type(Flanged Unique),With flanged and Uniquie in outer ring

2. Material of Bearing Parts:

3. Dental Bearings Sizes and description:

SR144TL, SR144TLZ,
SFR144TL, SFR144TLZ

SR144TLK, SR144TLKZ

SR144TLZ1W_02, SR144TLKZW₀₂

SR144TLW, SR144TLZW

SFR144TLW, SR144TLKZW

SR144TLKW, SR144TLKZW

SFR144TLGZW, SFR144TLGZ₁W

SFFR144TLW , SFFR144TLZW, SR144TLW1.9

R2-5TLZ(2.78), R2-5TLZ, R2-5TLZZ

4. Product Specifications:

1)Dental Bearing of high precision level P4 (ABEC 7),
usable for various brands of high-speed dental turbine handpieces

2)Rotating speed 350,000-450,000 rpm under air-pressure of 200-250Kpa

3)Working life for about six months under the normal operation

4)Very less vibration, Very less noise, Antirust, Corrosion resistant

5)High temperature resistant for disinfection

6)The ceramic balls used in some Freerun dental bearings are harder, lighter and more wear resistant than the stainless steel versions used by other bearing manufacturers. Ceramic balls generate less centrifugal force at the high speeds dental handpieces operate, reducing wear on the bearing and the production of wear particles, which in turn increases lubricant life.

5. How to use correctly:
1). It is the best that the interference fit between bearing bore and turbine shaft is under    0.5um-1.5um.when putting turbine shaft into bearing bore, the pressure should be forced on the face of inner ring to avoid the damage of rollway and balls.
2). After fitting the bearing into turbine shaft they should be instilled special lubricant (ethanol must not be used)
3). After high stean sterilized the dental high speed handpiece should be jetted some
lubricant into the air inlet before used and so that bearing could be used longer time. 
4). To keep operating stability, the preload spring stress of bearing should be controlled under 1.2 +/- 0.2N.