Technical parameter of High Speed Dental Handpiece Drill Bearing

Meterial: inner and outer ring-Stainless rings 440c

Base: Ceramic SI3N4

Cage: Torlon PAI(polyamide-imide)

Speed: 350000-400000r/min under the air-pressure of 200-250Kpa

Working life: about six month

Tolerance grade of super precision: ABEC-7

Characteristics: Corrision resistance, high temperature resistance, low noise and low vibriation level, weak acid resistance , weak base resistance

Bearing type: Radial bearings, angular contact ball bearing

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.

1. Q: What’s your advantage?

A: Our product can be split into three parts for sale. First part is handpiece head. Second part is fuselage. Third part is tail.

2. Q: Where is your factory located? How can I visit there?

A:Our company is located is NINGBO CITY CHINA, you can fly to NINGBO airport or Shanghai airport.,we are warmly welcome you visit us.

3. Q: Can you provide samples? All the sample free?

A: We can provide free sample, but the buyer need to pay the freight.

4. Q: How long is your delivery time?

A: Normally our delivery time is whit in 3-5 days after payment received for big quantity please check with us about delivery time before place order.

5. Q:Can you offer OEM service?

A: We can offer OEM service. If you need it, welcome to contact me.

6. Q: What about the warranty period and after-sale service?

A: Each warranty period begins at the date of delivery date and ends after one year. Welcome you chat online or e-mail to us regarding any technical or related questions that you may nave.