Product Details
Sic Ceramic Ball
The density of Sic Ceramic Ball is 3.2g/cm3 and it’s the same as
Si3N4 ball, at 1400℃, the intension and rigidity almost couldn’t be
changed. Sic Ceramic Ball has the self-lubrication that can solve
the pollution of lubricate medium. Comparing with Si3N4, Sic
Ceramic Ball has higher rigidity, lower anti-press strength and
lower rupture toughness.
Staple Material and Manufacturing Presision |
| Ceramic Balls | Plastic balls | Glass Balls | Stainless Balls |
meterial | Zr02,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 |

Company Profile
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.
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