SFFR144TLZWN 3.175*7.5*2.78 High Speed Dental Bearing Stainless Steel
SFFR144TLGZWN 3.175*7.5*2.78 High Speed Dental Bearing
The requirements for high speed dental handpiece bearings are as follows: high precision, smooth and noiseless operation, high - speed cutting capacity, resistance to multiple high - temperature sterilizations, and long service life.
Specifications of handpiece dental bearings:
Compatibility: Fits leading dental handpiece brands ( W&H,KaVo,Sirona,NSK ) with quick replacement.
Materials of balls:Stainless steel & Ceramic
Bearing dimensions:3.175*7.5*2.78mm,3.175*6.35*2.38mm,3.175*7.938*3.571 etc.
High-Temperature Resistance&Corrosion Resistance: Withstand 120-135℃ autoclaving and oral acidic/alkaline environments.
Longevity & Maintenance-Free: Service life > 9 months with minimal replacements.
Product Features:
Ceramic balls: 50% lower friction, 30% reduced temperature rise, 2x longer lifespan.
Stainless steel races: Vacuum heat-treated for 40% improved corrosion resistance.
Rotating speed 350000-450000 rpm under the air-pressure of 200-250Kpa
Corrosion resistant,High-temperature sterilization resistant
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 |
|
|
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 |
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