![Sr144tlzwn 3.175*6.35*2.78 High Speed Dental Bearing for Dental Basic Operation Tools]()
![Sr144tlzwn 3.175*6.35*2.78 High Speed Dental Bearing for Dental Basic Operation Tools]()
SR144TLZWN 3.175*6.35*2.78Â High Speed Dental Bearing
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Requirements for High-Speed Dental Bearings:
Ultra-High-Speed Operation: Support 300,000-480,000RPM for precise tooth preparation.
High-Temperature Resistance&Corrosion Resistance: Withstand 120-135ºC autoclaving and oral acidic/alkaline environments.
Longevity & Maintenance-Free: Service life > 8 months with minimal replacements.
Bearing dimensions:3.175*6.35*2.38mm,3.175*6.35*2.78mm etc.Â
Bearing structure : One shield (normal shield)Â or Double Shield
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Product Features:
Perfectly usable for many brands and models of high-speed dental handpieces
Materials: AISI 440C stainless steel, Si³N4 ceramic or stainless steel balls.
Precision: P4 grade or ABEC-7 standard.
Lubrication: Sealed design or solid lubrication.
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High speed dental handpiece bearing Product Parameters:
| NO. |
Dental handpiece
 Bearing type |
Inside Diameter |
Outer Diameter |
Inner ring width |
Outer ring width |
Step outside diameter |
Step width |
Flange outer diameter |
Flange width |
RPM |
| Â |
d |
D |
B |
C |
DK |
CK |
DF |
CF |
| 1 |
SR144Z |
3.175 |
6.35 |
2.38 |
2.38 |
- |
- |
 |
 |
450000/min |
| 2 |
SR144ZK(step) |
3.175 |
6.35 |
2.38 |
2.38 |
5.98 |
0.98 |
 |
 |
450000/min |
| 3 |
SR144ZW |
3.175 |
6.35 |
2.78 |
2.78 |
- |
- |
 |
 |
450000/min |
| 4 |
SR144ZWK(step) |
3.175 |
6.35 |
2.78 |
2.78 |
5.98 |
0.98 |
 |
 |
450000/min |
| 5 |
SFR144Z |
3.175 |
6.35 |
2.38 |
2.38 |
- |
- |
7.518 |
0.584 |
450000/min |
| 6 |
SFR144ZW |
3.175 |
6.35 |
2.78 |
2.78 |
- |
- |
7.518 |
0.787 |
450000/min |
| 7 |
SR2-5Z |
3.175 |
7.938 |
3.571 |
3.571 |
- |
- |
- |
- |
400000/min |
| 8 |
SFFR144WZ |
3.175 |
7.5 |
2.78 |
2.78 |
 |
 |
7.5 |
 |
450000/min |
| 9 |
SFR144GWZ |
3.175 |
7.5 |
2.78 |
2.78 |
 |
 |
7.5 |
 |
450000/min |
| 10 |
SFR144KZ1WZ |
3.175 |
6.35/7.5 |
2.78 |
2.78 |
6.35 |
 |
7.5 |
 |
450000/min |
| 11 |
SR144K1Z |
3.175 |
6.35 |
2.38 |
2.38 |
5.88 |
 |
 |
 |
450000/min |
FAQ
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Q: Delivery and Carriage
There are three ways to deliver the qoods.One is Exoress ,such as DHL, UPS, TNT and Fedex.The charg of them is from Us$ 10.0/kG to Us$ 20.0/KG if We pay the freightin china. It is most convenient because of door to dorThis method is suitable to a few goods such as less than 20KGAnother is air parcel, you should go to airot to takethe qoods yousewes, The dharge is cheaper than expres, but you should pay the charges of customs dearance and we should paythe
charoes of dearance of goods, these charges are fixed no matter what weight or volume it is, This method is suitable to the gods which are more than 100KG.The rest one is ocean shipping, it is rather cheap, and it will take about 15-30 days to the pot if you are in the North America or the Europe.In general, we deliver the samples by Express, such as DHL, UPS, TNT and Fedex, and ship the goods of order by ocean shipping.
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Q:Payment
By T/T: 30% deposit, 70% balance before the shipment.
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Q: Claims and returns
We usually confirm with you before you place an order. If any defective products are received, you may return them, and we will bear the freight costs for these items. Alternatively, you may request us to replace the defective products promptly, and we will cover all associated shipping fees in full.We also provide a lifespan guarantee for our products. Typically, we offer a minimum of 6 months of lifespan warranty.
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