For further assistance with bearing selection and design, please feel free to contact our engineering team, look at our online catalog!
Jump to your Manufacturer: Abu | Adec | Alpha Air | BA | Banner | Beaver | Bien Air | Borden | Buffalo | Castellini | Chiradent | Chirana | Dabi Atlante | DME | Faro | Futura | Impact-Air | Jalenco | Kavo | Kinetic | KMD | Lares | Micro Mego | Midwest | MTC | MTI | NeyTech | NSK | Ritter | Siemens | Star… Read the rest

RHD Bearing has been a successful pioneer in the researching, developing and manufacturing of mechanical and electrical high-speed bearings, especially in producing high precision miniature dental bearings. Our dental drill bearing series have below outstanding features:

Real 450,000 rpm speed
Dedicated P4/ABEC 7 precision
Stainless steel (440C) & Ceramic (Si3N4)
Textile laminated fiber reinforced phenolic cage

1.Real 450,000 rpm operation speed:
Dentist has recognised that the pains during treatment could be reduced significantly if the drill bit be able to reach an extremely high rotating speed. As far as the… Read the rest

Bearing Model Dimension Type Basic Load ratings
Metric (mm) Inch Structure Flanged Step Flange/Step location Shields Cr Cor
619/4 4.000 11.000 4.000 0.157 0.433 0.157 RP N N N Open 0.95 0.35
619/4 Z 11.000 4.000 0.433 0.157 RP N N N 1 0.95 0.35
619/4 ZZ 11.000 4.000 0.433 0.157 RP N N N 2 0.95 0.35
685/5 5.000 11.000 3.000 0.197 0.433

Read the rest

With the development of the medical technology, nowadays there are many designs of dental drills available, however, each have the same basic features, including turbine, a handpiece, couplings, and a drill bit. The high speed drilling is activated by an air turbine. These devices convert highly pressurized air into the mechanical energy, enabling drill bits to rotate over 300,000 to 450,000 rpm.

The drill bit, is the most important part of the dental drill. It is short and highly durable, able to withstand high speed rotation and the heat that… Read the rest

Inch Series – Dental Handpiece Bearings / Radial Play

Single row deep groove high speed series:

Bearing Model Dimension Ball Complement Basic Load ratings Limited Speed
Basic P/N Type Metric (mm) / Inch No. Dia. (mm) Cr(KN) Cor(KN) Oil Open, Z
d D B Ds Df Bs Bf Be
R144 open 3.175mm / 0.125″ 6.35 /0.25 2.38/0.094 - - - - - 7

Read the rest