Handpiece bearings SFR144TLZWN

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Part Number SFR144TLZWN
Bearing type BALL
Structure Single Row
Load Direction Radial
Seal type Single Shields
Bore diameter(d) 1/8″︱3.175mm
Outer diameter(D) 1/4″︱6.35mm
Flange OD(Df) 0.2960″︱7.5184mm
Width(B) 0.1094″︱2.779mm
Flange thickness (Bf) 0.031″︱0.7874mm
radius (rs) 0.1mm
material Stainless steel 440C(9Cr18)
ring material Stainless steel 440C(9Cr18)
cage material Torlon
ball material Ceramic ball Si3N4
shields material Stainless steel 304
Grade ABEC-1(higher grade available)
Clearance C0(other clearance available)
BALL SIZE(mm) 1mm
lubrication grease(oil available)
Temperature Range -30℃~130℃
weight(g) 0.48
ISO9001:2015 PASSED
Dynamic Load Rating (Cr) 240 N
Static Load Rating (Cor) 75 N
inch ball bearing sfr144zz d

There are some different shapes of handpiece bearings in Runstar, there are smooth type,flange type or with a step on outer ring for the shapes.The handpiece bearings can be open,or with one shields etc. we have full sizes of dental handpiece bearings.

The item SFR144TLZWN is belong to the dental handpiece with flange in shape, it is a very pop size for all kinds of dental drill brands such as W&H,Bein Aai,Lares,KaVo,FARO,Midwest,Adec,Yushida,Simens and Star etcs.It is made of refined stainless steel with high precision ABEC-9, and it is with a bore diameter 3.175mm,a outer diameter 6.35mm and a width 2.78mm. And it is with shield in one side that is easy for user to reduce the temperature of the dental drill with water .The material of cage is Torlon which can support the high speed 350000~400000 rpm.The material of ball is ceramic ball Si3N4.

Handpiece Bearings are called dental bearings,dental handpiece bearing,dental drill bearing or dental turbine bearings in difference places, they are referred high speed miniature bearings used in dental turbine. Compared with common miniature bearings, dental handpiece bearings need to be made with refined material and with high precision,for the rotation speed of dental bearings can be from 350000~400000rpm under the air pressure of  200-250kpa,so the dental bearings need to have the following characteristics of high precision, high speed, low noise, low vibration, high temperature resistance, corrosion resistance, long life and environmental protection, which are deeply loved and recognized by users.



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