6908 Full ceramic bearing 40X62X12mm

Model: 6908
Place of Origin: Zhejiang,China (Mainland)
Brand Name: RNB OR NATURAL
Number of row: Single row
Type: Ball bearings
Material of race: ZrO2
Material of ball: ZrO2
Precision: P5

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Product Description

Payment & Shipping Terms Supply Capacity
Payment Terms:L/C, T/T, WUProduction Capacity:200000 Piece/Pieces...
Min. Order:100 Piece/PiecesPacking:RNB OR NATURAL
Means of Transport:Ocean, AirDelivery Date:30 days

Full ceramic bearing made with Si3N4 have some better performance than ZrO2, the rings and balls made by 

full ceramic material: Si3N4,

Full ceramic ball bearings 6908

Demension:40X62X12mm

Full ceramic (All -ceramic) ball bearing of ZrO2 material

Full ceramic bearing have excellence performance as special electrical and magnetism resistance, wear and corrosion resistance, lubrication and maintenance free when working, especially high and low-temperature application,etc.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.

Full ceramic (All -ceramic) bearing of Si3N4 material

Full ceramic bearing made with Si3N4 have some better performance than ZrO2, the rings and balls made by 

full ceramic material: Si3N4, as a standard constructure, the cage made by PTFE,generally we also could make 

the cage with GFRPA66-25, PEEK, PI, phonemic textiles tube, etc. Compares than the material of ZrO2. The 

SiN4 ceramics bearings could endure heavier load and could be used in higher temperature environment. Also 

we could offer precision ceramic bearing which generally used in high-speed and high-rigidity spindle, the 

manufactured clearance could be P4 to up grade.

Full ceramic (All-ceramic) ball bearings fo full complement balls

Full ceramic bearing of full complement balls has an add-ball gap on its side. Because using no cage design, 

the bearing able to install more ceramic balls than the standard construction, so the heavier radial load 

ability increased more.resistance and high temperature application. This series of bearing is not for high 

speed choice, it should be to install on the unforced.

Full ceramic (All-ceramic) bearing of ceramic cage

Ceramic ball bearings 6908

Ceramic cage has excellence performance as wear and corrosion resistance, high strength, lubrication and 

maintenance free when working. Adopting the ceramic cage, ceramic bearing can be used in the most inclemency

environments as corrosive,low temperature, high vacuum. The normal used ceramic materials with ZrO2.

Hybrid construction ceramic ball bearing

Ceramic ball 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 is the best choice for rollers(inner ring and outer ring are made by 

metal) of the hybird construction ceramic ball bearing which are used in high-speed,high accuracy and long 

life environments. Normally, GCr15 or AISI44C, 316 ,304 makes inner ring and outer ring; The ceramic ball

can adopt ZrO2, Si3N4 or Sic.

BearingNo.BoundaryDimensionsMass
(kg)                 (refer)
dDBr(min)ZrO2Si3N4PLASTIC440C
6833720.100.000240.000130.000050.00032
693830.150.00050.000250.00010.00061
603930.150.00070.00040.00020.00087
6231040.150.00130.00070.00030.00165
6331350.150.00250.00140.00060.0034
684492.50.100.00050.00030.00010.0006
6941140.150.00130.00070.00030.0017
6041240.200.00170.00090.00040.0023
6241350.200.00230.00130.00060.003
6341650.300.0040.00220.0010.0052
68551130.150.00090.00050.00020.0012
6951340.200.00190.0010.00050.0025
6051450.200.00270.00150.00070.0035
6251650.300.00380.00210.0010.005
6351960.300.00660.00360.00160.0086
6866133.50.150.00150.00080.00040.0019
6961550.200.0030.00160.00070.0039
6061760.300.00460.00250.00110.006
6261960.300.00630.00340.00160.0086
6362270.300.01080.00580.00270.014
6877143.50.150.00170.00090.00040.0022
6971750.300.0040.00220.0010.0053
6071960.300.00590.00320.00150.0077
6272270.300.00980.00530.00240.0127
6372690.300.01850.010.00460.024
68881640.200.00250.00140.00060.0072
6981960.300.00560.0030.00140.0072
6082270.300.00930.0050.00230.012
6282480.300.0130.00720.00330.017
6382890.300.0220.0120.00540.028
68991740.200.00270.00150.00070.0035
6992060.300.00650.00350.00160.0085
6092470.300.0110.00660.00280.015
6292680.300.0150.00810.00380.02
63930100.600.0280.0150.0070.037
6800101950.300.0040.00210.0010.005
69002260.300.0070.00380.00170.009
60002680.300.0140.00750.00350.018



Full ceramic ball bearings

Category: Ceramic Bearing