40000 Rpm Dental Bearing Sr144tl Dental Ceramic Bearing Sr144tlzw 3.175*6358*2.38/2.78 for Detanl Handpieces

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Product Description

📋 Basic Information
Model NO.:all
Transport Package:Client Requirements
Specification:As per request
Trademark:Neutral
Origin:China
HS Code:8482109000
Capacity:10000 Sets/Month
Product Description

Dental Handpiece Ceramic ABEC-7 Bearing SR144TLKZN 3.175x6.35x2.38

The Dentist Dental bearing is a special high-precision bearing designed for medical mobile devices. These bearings are critical components in turbine-driven dental tools, ensuring smooth operation at extreme rotational speeds.

Premium Materials: Inner and outer rings made of refined stainless steel (9Gr18); balls available in refined stainless steel or non-metal super hard Si3N4 ceramic for superior wear resistance.
High Speed Performance: Capable of reaching maximum speeds between 350,000 to 450,000 RPM under 200~250Kpa air pressure.
P4 Precision: Manufactured to national standard P4 level GB/T307.1-94 tolerance, compatible with various global dental handpiece brands.
Durability: Optimized self-lubrication using polyimide or phenolic cloth bakelite material, extending working life to over 1 year under normal conditions.

With the rapid evolution of medical technology, modern high-speed dental drills utilize advanced turbine designs. The air turbine engine is precision-sandwiched between two high-speed bearings, which are the key factors in achieving direct drive through shafts and gears. These bearings are designed to withstand high RPM and the resulting thermal stress while maintaining low noise levels (<=70dB).

📏 Specifications & Models
Model Dimensions (mm) K RPM Air Pressure Noise (dB)
d D Width Side Step Flange (dD)
SR144TLKZ 3.175 6.35 2.38 6 - 350-450 22-25kpa <=70
SR144TLKZN 3.175 6.35 2.38 6 - 350-450 22-25kpa <=70
SR144TLZW 3.175 6.35 2.78 - - 350-450 22-25kpa <=70
SFR144TLZN 3.175 6.35 2.38 - 7.5 350-450 22-25kpa <=70
R2-5Z-P4-TLN 3.175 7.938 3.571 - - 350-450 22-25kpa <=70
Handpiece Technical Diagram
FAQ
1. What materials are used in the dental handpiece bearings?
The rings and balls are made from refined 9Gr18 stainless steel. For enhanced performance, Si3N4 ceramic balls are used for their superior wear resistance.
2. What is the maximum speed these bearings can handle?
These bearings are engineered for high-speed operation, reaching between 350,000 to 450,000 revolutions per minute (RPM).
3. What is the precision rating of these dental bearings?
They are manufactured according to the national standard P4 level (GB/T307.1-94) tolerance, ensuring high accuracy for medical use.
4. How long is the typical working life of the bearing?
Under normal operating conditions and proper maintenance, the working life of these dental bearings is typically more than 1 year.
5. Are these bearings compatible with different dental handpiece brands?
Yes, due to their P4 level precision and standard sizing, they are designed to be compatible with various types of high-speed dental handpieces used worldwide.
6. What is the recommended air pressure for operation?
Optimal performance is achieved at an air pressure of 200 to 250Kpa (approx. 22-25kpa at the head).

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