Features and applications of miniature dental handpiece bearings

BLH Bearings manufactures precision-designed bearings for high-speed dental handpieces to reduce rotational friction within the handpiece. This allows the motor to achieve high-speed rotation and smooth operation. These bearings enable dental instruments to rotate at speeds ranging from 250,000 to 500,000 revolutions per minute, making them among the fastest pieces of equipment in the healthcare industry.

Bearing Outer Ring and Raceway: A precision-fitting component that secures the dental handpiece housing to a precision of 0.001mm.

Bearing Inner Ring and Raceway: A rotating component connecting the spindle or chuck, ensuring precise tool movement.

Steel Balls and Rolling Elements: These steel balls are typically made of high-quality G6 grade steel or ceramic composites to reduce friction and ensure smooth rotation.

Bearing Cage: This component is crucial for securing the steel balls within the raceway. It prevents the balls from contacting each other, reducing friction.

Dust Cover: Protects the bearing grease and internal structure, preventing contaminants from entering.

High-speed rotation: Typically exceeding 400,000 RPM; some even reach over 500,000 RPM.
High precision: Ensures accurate positioning during the use of high-speed dental handpieces.
Can withstand the cyclic cleaning of autoclaves, with excellent corrosion resistance.
Noise and vibration reduction: Very low noise even during high-speed rotation of dental handpieces.
The steel quenching process for bearing components has high requirements, resulting in very stable durability and reliability of the bearings.

I. Classification by Appearance

High-gloss dental bearings: Simple, seamless design provides direct assembly and reliable performance.
Flanged dental bearings: Characterized by a flange for easy positioning and installation.
Stepped dental bearings: Utilize a stepped structure to accommodate different component sizes, thereby improving rotational stability.
Custom-designed dental bearings: Bearings custom-designed to meet specific operating conditions, offering various adjustment functions. Mostly made of stainless steel.

II. Classification by Sealing Type

Open-type dental bearings: These bearings do not have dust covers and provide maximum grease capacity.
Shielded dental bearings: They have single or double dust covers, effectively preventing dust and debris from entering.
Integral shielded dental bearings: These bearings require assembly into a sealed bearing housing unit.

Bearing Dimensions: 3.175*6.350*2.380mm, 3.175*6.350*2.779mm, 3.175*7.738*3.571mm

Bearing Applications: Suitable for dental electric handpieces and dental air turbine handpieces.

Common Low-Speed ​​Dental Bearing Applications: Suitable for straight handpieces, curved handpieces, micro motors, etc., operating at standard speeds of 20,000 to 50,000 revolutions per minute.

Bearing Precision Requirements: High precision grade P5

Radial bearing: This bearing configuration is suitable for bearing radial loads or light axial loads.

Angular contact ball bearing: This bearing configuration is used to bear radial and axial (thrust) loads in one direction.

With over 20 years of manufacturing experience, we are a leading supplier of innovative dental bearings. We offer expert design and solutions for all dental instrument rotation.

Our team of works engineers directly with OEM clients to tailor dental bearing specifications and performance. We can solve all the challenges faced by dental bearing OEMs.

Furthermore, BLH Bearings factory has a wide selection of dental handpiece bearings in stock, which can be shipped immediately. For custom-made dental bearing orders, we can provide customized solutions.

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