1.Product Detail:

Product Name:Stainless Steel ABEC-7/P4 High Speed Dental Handpiece Bearing used for KAVO/NSK/W&H

Model: SR144TLZWN

Size: 6.35mm*3.175mm*2.78mm

Material of rings: stainless steel

Material of balls: Ceramic

Material of cage: Torlon(TL)

Feature:high precision,low noise, long life & high speed。

Lubrication: grease, oil

Structure: Deep Groove

    Unit Price:1.85$-2$

    Brand Name: Neutral or OEM

    Package:Natural package

    Package Type: Vacuum poly bag and plastic tube pack.

   Customization: Customized logo and Customized packaging available

   Min order: 10000pcs

   Delivery time: normally within 7-10 days

   It’s according to customer’s order quantity

   Application: high speed dental drill handpiece KAVO/ NSK/ W&H

  Material: stainless steel,SI3N4 Ceramic,Hybrid ceramic

  Seals Type: ZZ 2RS OPEN

  Rotate speed: about 400000r

  2.Product Description:

Hand piece bearings are some of the most highly scrutinized in the bearing industry due to their high speeds when in use, and expected exposure to the constant heating and cooling of the autoclave cycle between uses.  Tolerances (distances between rotating and stationary parts) are some of the very tightest in the industry.

This class bearing special bearings for Dental dentist phone, the inner and outer rings of refining stainless steel (9Cr18Mo) material the ball refined stainless steel (AISI440C) or a non-metallic super-hard ceramic material (SI3N4), has good wear resistance cagethe imported the TORLON or high-strength low-friction and self-lubricating properties of polyimide material or 80 to 120 phenolic Textolite material, bearing 200 ~ 250Kpa air pressure, the speed is up to 300 000 to 400 000 rpm. Under normal conditions of use, bearing the working life of more than 6 months.
The high-speed dentists dedicated phone bearing manufacturing precision meets the P4 level national standards GB/T307.1-2005 requirements can be applied to different models at home and abroad dentists phone high-speed grinder.

3. Product Specifications:

1)Dental Bearing of high precision level P4 (ABEC 7),

usable for various brands of high-speed dental turbine handpiece.

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, Anti-rust, Corrosion resistant

5)High temperature resistant for disinfection

6)The ceramic balls used in 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 hand pieces operate, reducing wear on the bearing and the production of wear particles, which in turn increases lubricant life.

 4. 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 hand piece 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.

Welcome your consultation at any time,we're sure to offer our best price for you.

Contact person: Ella

Email: ella@renais.net

whatsapp: +0086-15706873920