Deep Groove Ball Bearing
The main components of the drill bearing include shaft, worm gear, spring chuck, spring gasket, back cover, housing, rolling bearing and rubber positioning ring and other parts.
Product name: SR144TLZWN dental drill bearing
Size: 3.175x6.35x2.779mm ( 0.125x0.250x0.1094 inch )
weight: 0.00048KG
Specification
SR144TLZWN, SR144, R144 are all specialized bearings for high-speed dental drills. Most feature a single-row deep groove ball design with a precision grade of P4 (ABEC-7). Available in stainless steel or ceramic materials, some models include metal dust covers or seals. Capable of achieving high rotational speeds of 300,000-450,000 rpm under specific air pressure conditions, they offer low noise and extended service life. Compatible with various high-speed dental turbine handpieces.
Technical parameter:
| Model Number | SR144TLZWN dental drill bearing |
| Size | 3.175x6.35x2.779mm ( 0.125x0.250x0.1094 inch ) |
| Weight | 0.00048KG |
| Material | stainless steel with Si3N4 ceramic |
| Clearance | C2 C0 C3 C4 |
| Precision Grade | p0 p6 p5 p4 |
| Payment | 100% T/T or 30% T/T before production, 70% before delivery |
| MOQ | 100pcs |
| Cage material | Torlon material cage |
| Package | Plastic bag or single box+Carton+Pallet |
| Lubrication | Pre-lubricated with High-Performance Grease |
| Temperature Range | -20°C to +120°C |
| Lead Time | 3-5 Days |
Material and performance characteristics of dental drill bearing:
The material of the dental drill bearing is very important to its performance and life. The ring material is made of special corrosion-resistant stainless steel, the ball material is made of Si3N4 ceramic ball with small thermal expansion coefficient, and the cage material is made of polyimide TORLON which is resistant to pressure, impact and high temperature. The selection of these materials enables the drill bearing to operate in an environment with poor lubrication conditions and has the characteristics of corrosion resistance and no rust.
Related Products
| Model No. | sizes(mm) | Model No. | sizes(mm) |
| SR144TL | 3.175*6.35*2.38 | SFR144K1TLGZW | 3.175*6.35*7.5*2.78 |
| SR144TLZ | 3.175*6.35*2.38 | SFR144K2TLGZW | 3.175*6.35*7.5*2.78 |
| SR144TLW | 3.175*6.35*2.78 | SFR144K1TLGZ1W | 3.175*6.35*7.5*2.78 |
| SR144TLZW | 3.175*6.35*2.78 | SFR144K2TLGZ1W | 3.175*6.35*7.5*2.78 |
| SR144TLKZ | 3.175*6.35*2.38*5.98 | SFR144K1TLZ1W | 3.175*6.35*7.5*2.78 |
| SR144TLKZW | 3.175*6.35*2.78*5.98 | SFR144K2TLZ1W | 3.175*6.35*7.5*2.78 |
| SR144K1TLKW | 3.175*6.35*2.78*5.98 | SR144K1TLKZ1W | 3.175*6.35*2.78*5.98 |
| SR144K2TLKW | 3.175*6.35*2.78*5.98 | SR144K2TLKZ1W | 3.175*6.35*2.78*5.98 |
| SR144TLKZ1 | 3.175*6.35*2.38*5.98 | SR144K1TLZ1W02 | 3.175*6.35*2.38*2.78 |
| SR144TLKZ1W | 3.175*6.35*2.78*5.98 | SR144K2TLZ1W02 | 3.175*6.35*2.38*2.78 |
| SR144K1TL | 3.175*6.35*2.38 | SR144TLKZ1W02 | 3.175*6.35*2.38*2.78 |
| SR144K2TL | 3.175*6.35*2.38 | SR144TLKZW01 | 3.175*6.35*2.38*2.78 |
| SR144K1TLW | 3.175*6.35*2.78 | SFR144TLGZW | 3.175*6.35*7.5*2.78 |
| SR144K2TLW | 3.175*6.35*2.78 | SR144TLZ1 | 3.175*6.35*2.38 |
| SR144K1TL | 3.175*6.35*2.38 | SR144TLZ1W | 3.175*6.35*2.78 |
| SR144K2TLZ | 3.175*6.35*2.38 | SR2-5TLZW | 3.175*7.94*3.57 |
| SR144K1TLZW | 3.175*6.35*2.78 | SR2TLYZZ | 3.175*7.5*7.0*2.78 |
| SR144K2TLZW | 3.175*6.35*2.78 | SR2TLYZZ1 | 3.175*7.5*7.0*2.78 |
| SFR144K1TLZ | 3.175*6.35*7.5*2.38 | SFR144TLZ1 | 3.175*6.35*2.38 |
| SFR144K2TLZ | 3.175*6.35*7.5*2.38 | SFR144TLZ1W | 3.175*6.35*2.78 |
| SFR144TLZ | 3.175*6.35*7.5*2.38 | SFR144TLGZ1W | 3.175*6.35*2.78 |
| SFR144TLZW | 3.175*6.35*7.5*2.78 | SFFR144TLW | 3.175*7.5*2.78 |
| SFR144K1TLZW | 3.175*6.35*7.5*2.78 | SFFR144TLZW | 3.175*7.5*2.78 |
| SFR144K2TLZW | 3.175*6.35*7.5*2.78 | SFFR144TLZ1W | 3.175*7.5*2.78 |
| SR144K1TLKZW | 3.175*6.35*2.78*5.98 | SFFR144K1TLW | 3.175*7.5*2.78 |
| SR144K2TLKZW | 3.175*6.35*2.78*5.98 | SFFR144K2TLW | 3.175*7.5*2.78 |
| SR144K1TLZ1 | 3.175*6.35*2.38 | SFFR144TLGZW | 3.175*6.35*7.5*2.78 |
| SR144K2TLZ1 | 3.175*6.35*2.38 | SFFR144K1TLGW | 3.175*6.35*7.5*2.78 |
| SR144K1TLZ1W | 3.175*6.35*2.78 | SFFR144K2TLGW | 3.175*6.35*7.5*2.78 |
| SR144K2TLZ1W | 3.175*6.35*2.78 | SR144K1TLKZ1 | 3.175*6.35*5.98*2.38 |
| SR144K1TLW02 | 3.175*6.35*2.38*2.78 | SR144K2TLKZ1 | 3.175*6.35*5.98*2.38 |
| SR144K2TLW02 | 3.175*6.35*2.38*2.78 | SFFR144K1TLZWN | 3.175*7.5*2.78 |
| SR144K1TLKZW02 | 3.175*6.35*2.38*2.78 | SFFR144K2TLZWN | 3.175*7.5*2.78 |
| SR144K2TLKZW02 | 3.175*6.35*2.38*2.78 | SR144TLW1.9 | 3.175*6.35*1.9 |
| SR144K1TLKZ1W02 | 3.175*6.35*2.38*2.78 | SR144TLW1.9/W01 | 3.175*6.35*1.6*1.9 |
| SR144K2TLKZ1W02 | 3.175*6.35*2.38*2.78 | SR144TLW1.9/W02 | 3.175*6.35*2.78*1.9 |
Dental drill bearing working principle and application scenarios
The dental drill bearing is fitted with turbine, bearing and shaft by interference, and is driven by compressed air to rotate at high speed, driving the spring chuck installed in the shaft hole and the drill to work. This design enables the drill bearing to have ultra-low vibration and ultra-low noise at high speeds, making it suitable for a variety of dental applications.
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