Ceramic NACHI Bearing 6204 Descriptions of NACHI Bearing 6204

 Ceramic bearings have excellence performance as special electrical and magnetism resistance, wear and corrosion resistance, lubrication and maintenance free when working, high and low- temperature resistance etc. So they are suitable to be used in awful environment and special condition such corrosion ,magnetism and high temperature which are used in the transmission device of hot equipment .

C2      Radial internal clearance smaller than Normal
C3  Radial internal clearance greater than Normal
C4  Radial internal clearance greater than C3
C5  Radial internal clearance greater than C4
DB  Two single row deep groove ball bearings matched for paired mounting  in a back-to-back arrangement
DF  Two single 

Features of ceramic NACHI bearing 6204

Full Ceramic Bearing have excellences as special electrical and magnetism resistance, wear and corrosion resistance, self-lubrication and maintenance free when working, especially high and low- temperature application .etc. It could be used in awful environment and specially condition.

The rings and balls made by full ceramic material:ZrO2, as a standard constructure, the cage made by PTFE, generally we also could make the cage with GRPA66-25, PEEK, PI, AISI SUS304, SUS316, Cu, etc

Applications 
auto manufacture,driving equipments and engine industrial,chemistry industrial,medical industrial and food processing equipments industrial and so on.
MA but with lubrication grooves in the guiding surfaces
MB  Machined brass cage, inner ring centred
MBS  As MB but with lubrication grooves in the guiding surfaces
N  Snap ring groove in outer ring
NR  Snap ring groove in the outer ring, with appropriate snap ring
N1  One locating slot (notch) in one outer ring sideface
RS1  Sheet steel reinforced contact seal of acrylonitrile-butadiene  rubber (NBR) on one side of the bearing
RSH  Sheet steel reinforced

Ceramic ball bearing,ceramic bearing,full ceramic bearing,all ceramic bearing especially Si3N4 have the following performance as low density, high strength, low friction coefficient, electrical and magnetism resistance, wear resistance, well rigidity, lubrication and maintenance free when working, it's the best choice for rollers (inner ring and outer ring are made by metal) of the hybrid construction which are used in high-speed, high accuracy and long life environments. Normally, GCr15 or (AISI440C,316 304) makes inner ring and outer ring; The ceramic ball can adopt ZrO2, Si3N4 or Sic. 

ceramic bearing Specifications:

1) Shield / closure: open bearing, Z, ZZ, RS, 2RS

2) Snap ring: N, NR

3) Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC-7

4) Vibration level codes: V4, V3, V2, V1

5) Internal clearance codes: C2, C3, C4, C5

6) Material: AISI52100, AISI440C, AISI304, AISI316, ceramic

7) Retainer: PTFE, nylon, PEEK or stainless steel

8) Bore size: 1 - 20mm

9) Model: 672-6709, 682-6820, 692-6920, 602-6020, 623-6220,

633-6320, 16000, MR52-MR149, R, FR, MR, MFR

Models numbers NACHI BEARING