white ceramic beads
- 描述:
Due to the features of high fracture toughness
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- 常见问题
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tem
Test Condition
Unit&Symbol
Zirconia Ceramics
The main chemical ingredient
ZrO2:95%
Y2O3:5%
Bulk Density
g/cm3
6
Maximum Use Temperature
1300°C
Water absorption
%
0
ROHS Hardness
HRA
≥83
Compressive Strength
20°C
Kgf/cm2
25000
Fracture Toughness
Map.m3/2
6-8
Coefficient of thermal expansion
/°C
9.5*10-6
Thermal Shock Resistance
Tc
°C
360
Volume Resistivity
20°C
Ωcm20°C
≥10 12
white ceramic beads description
Due to the features of high fracture toughness,high bending strength,high wear resistance,excellent heat insulating property and proper thermal expansion coefficient that closes to steel's, Zirconia(zro2)ceramic balls are widely employed in ceramic bearing fields.Furthermore,the cost is much lower than silicon nitride.
Grade
Vdws
( △ Sph)
(Ra)
less than， μ m
3
0.08
0.08
0.012
5
0.13
0.13
0.02
10
0.25
0.25
0.025
16
0.4
0.4
0.032
20
0.5
0.5
0.04
28
0.7
0.7
0.05
40
1
1
0.08
60
1.5
1.5
0.10
100
2.5
2.5
0.125
200
5
5
0.2
Their characterisitics are shown as follows:
1.Corrosion resistance,which can also be used in acid and alkali situation.
2.High temperature resistance,whice remain the same strength and hardness when the temperature nearly comes to 550 ℃
3.Nonmagnetic,Electrical insulation.which can be used in magnetic field
4.Zro2 ceramic balls have a low density of 6.05g/cm3.it is approximately 20% lighter than steel ball,whice decrease the centrifugal force on the deep groove,in order to reduce the wear and tear.
5.Excellent resistance to oxidation and metal erosion,Zro2 ceramic balls also can be used without lubricate environment
6.Low friction coefficient and high surface finish.
Application fields:high precise ceramic bearing,high temperature bearing,vacuum bearing,nonmagnetic bearing,chemical pump,high temperature pump,ceramic valve ball,measure ball,etc.
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bearing balls size
Size (inch) Size (mm) Size (inch) Size (mm) 1.5 1/16 " 1.588 2 3/32 2.381 1/8 " 3.175 5/32 " 3.969 3/16 " 4.763 7/32 " 5.556 1/4 " 6.35 17/64 " 6.747 7 9/32 " 7.144 5/16 " 7.938 11/32 " 8.731 3/8 " 9.525 13/32 " 10.319 7/16 " 11.112 29/64 " 11.509 15/32 " 11.906 12 31/64 " 12.303 1/2 " 12.7 17/32 " 13.494 14 9/16 " 14.288 19/32 " 15.081 5/8 " 15.875 21/32 " 16.669 11/16 " 17.463 23/32 " 18.256 3/4 " 19.05 25/32 " 19.844 20 13/16 " 20.638 7/8 " 22.225 15/16 " 23.812 1 " 25.4 1-1/16 " 26.988 1-1/8 " 28.575 2001/3/16 30.163 1-1/4 " 31.75 1-3/8 " 34.925 35 1-1/2 " 38.1 1-5/8 " 41.275 1-11/16 " 42.863 1-7/8 " 47.625 2 " 50.8 -
Our Services
1. Full technical support from concept design to final product delivery
2. On-time delivery with no compromise on quality
3. High-quality product making with advanced equipment and techniques
4. Large-scale of proudction availabl
5. Lower cost (medium-size factory, 3000 square meters), but high-end quality only(the
same quality control system as per big factory)6. Any questions to be sent will get response within 24 hours FAQ
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FAQ
a) How to prolong service life of bearings?
Accurate installation and using,alignment,timely monitor,re lubrication etc.
b) Reason for bearings failure?
Usually is incorrect using method,pollution,improper use of lubricant,damage happened
in installation and handing,also including installation error.according to the traces can
know the reason why is failure.c) How to choose bearings?
Analyse mechanical device and use conditions.clear the requiremment of
bearings.select type of bearings,select distribution way of bearings.selet dimensions of
bearings,select installation method of bearings.d) When select bearings specifications,what you need to consider?
The precision of the bearings(rotating precision,dimensional tolerances)internal
clearance and preload bearing material and heat treatment.structure of cage and material.e) Payment method,packing way,transport method,time of delivery? T/T,PAYPAL,WESTERN UNION,L/C
Tube,box,carton,pallet, By sea,by air 3-15days after receipt of payment.
