
Al2O3 Ceramic Ball
Al2O3 Ceramic Ball at routine temperature has the super rigidity. At 1100℃, the rigidity and intension could not be changed, whose density is 3.7-3.99g/cm3, the rigidity is higher than ZrO2, but the anti-bend intension and rupture toughness is lower than ZrO2.
Al2O3 Ceramic Ball at routine temperature has the super rigidity. At 1100℃, the rigidity and intension could not be changed, whose density is 3.7-3.99g/cm3, the rigidity is higher than ZrO2, but the anti-bend intension and rupture toughness is lower than ZrO2.
Staple Material and Manufacturing Presision | ||||
Ceramic Balls | Plastic balls | Glass Balls | Stainless Balls | |
meterial | ZrO2,Si3N4,SiC,Al2O3 | POM,PE,PP,PA,UPE,PEEK | GLASS | 440C,304,316,316L |
grad | G5-G200 | G100-G1000 | G100-G1000 | G10-G200 |
Staple size of the balls | ||||
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 | 1-3/16" | 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 | |
Tolerance and surface roughness of the balls | |||
Grade | Variation of ball diameter | Deviation from ( △ Sph) | Surface roughness spherical from(Ra) |
not over 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 | 0.1 |
100 | 2.5 | 2.5 | 0.125 |
200 | 5 | 5 | 0.2 |
ZHEJIANG TOP BEARINGS CO., LTD.
ZHEJIANG TOP BEARINGS CO., LTD. is a manufacturer and distribution of sliding bearings. Our products have been widely applied to more than 30 industries like automobile, engineering machinery, metallurgy, water conservancy and hydroelectric power and mechanical manufacturing. Also we can design for customer's specific requirement.
We have reformed boldly, absorbed social elites through strengthening talent training, fully implemented modern management mechanism and new marketing strategy and been dedicated to long-term development of self-lubricating bearing industry. To control quality strictly, we set up a complete quality management system (ISO9001 and ISO/TS16949) in the quality policy of “Top Quality, Top Credit, Sustainable Growth”. Our quality and performance have reached advanced level.
To expand more markets, stand on the word and meet diversified requirements of customers, we are actively expanding and integrating with international markets. Now our products are available in more than 20 countries and regions in Western Europe, America and Southeast Asia. We’ll strengthen industrial horizontal integration further, create scale effect, open up emerging fields and develop industrial advantages to realize our strategic target and create a bright future with friends.