| Sign In | Join Free | My benadorassociates.com |
|
| Sign In | Join Free | My benadorassociates.com |
|
| Categories | Ceramic Plain Bearings |
|---|---|
| Brand Name: | TOB Ceramic Bearings |
| Certification: | ISO 16949 |
| Place of Origin: | China |
| MOQ: | negotiated |
| Price: | negotiated |
| Payment Terms: | T/T |
| Supply Ability: | negotiated |
| Delivery Time: | negotiated |
| Packaging Details: | Cartons or Pallets |
| Material: | ZrO2 or Si3N4 etc. |
| Almost Material of Cage: | PTFE material |
| Other material of Cage: | GFRPA66-25, PEEK, PI, AISI SUS304, SUS316, Cu, etc. |
| Density: | ZrO2 is 6g/cm3, Si3N4 is 3.2g/cm3 |
| Cycle stress: | 50*10^6 |
| Application temperature: | 1000℃ |
| Company Info. |
| ZHEJIANG TOP BEARINGS CO., LTD. |
| Verified Supplier |
| View Contact Details |
| Product List |
High Precision And Mini-size Ceramic Bearings
With widely using of the ceramic bearings in all kinds of industries, they have the different requirements of frame, category, material, and precision of the ceramic bearings. During the production, the requirements need to be improved by a long experiment, but on the small type (inner diameter less than 10mm), the precision of product is hard to meet the requirement of customers by the routine processing craft.
According to above problem, we have an adjustment of the manufacturing machine and processing craft. We use a new processing craft aiming at the ceramic bearing whose inner diameter less than 10mm, and purchase the new processing machine, which insure the production of the high precision and mini-size ceramic bearing from the hardware.
| Comparison of bearing material technical data | ||||||
| Technical data | unit | GCr15 | 9Cr18 | Si3N4 | AL203 | ZrO2 |
| Density | g/cm³ | 7.8 | 7.9 | 3.2 | 3.95 | 6 |
| a Coefficient of expansion | 10^-6/℃ | 11 | 17 | 3.2 | 9.1 | 10.5 |
| E modulus of elasticity | Gpa | 208 | 200 | 320 | 380 | 210 |
| μ Poisson ratio | 0.3 | 0.3 | 0.26 | 0.27 | 0.3 | |
| HV Hardness | 800 | 700 | 1700 | 1800 | 1300 | |
| δ Flexural strength | Mpa | 2400 | 2600 | 900 | 220 | 1000 |
| δ Compressive Strength | MPa | 2000 | 1500 | 3500 | ||
| Kc Impact strength | Nm/cm² | 20 | 25 | 7 | 3.5 | 11 |
| λ Thermal conductivity | W/mk | 30-40 | 15 | 3.5 | 25 | 2.5 |
| Ω Specific resistivity | mm²/m | 1 | 0.75 | 10^18 | 10^8 | 10^5 |
| Specific heat | J/KgK | 450 | 450 | 800 | 880 | 400 |
| Application temperature | ℃ | 120 | 150 | 1000 | 1850 | 800 |
| Anti-corrossion | No | poor | Good | Good | Good | |
| Cycle stress | 10*10^6 | 10*10^6 | 50*10^6 | 30*10^6 | 50*10^6 | |
| Destroy model | peel | peel | peel | fracture | peel/fracture | |
| Anti-magnetism | Yes | Yes | No | No | No | |
| Dimension stability | bad | poor | Good | Good | Good | |
| Insulate properties | No insulation | No insulation | Good | Good | Good | |
| Basic properties of staple engineer plastic | ||||||||
| Material | HDPE | PP | POM | PA66 | PVDF | PPS | PTFE | PEEK |
| Long-time working temp. | 90 | 100 | 110 | 100 | 150 | 230 | 260 | 280 |
| Density | g/cm3 | 0.91 | 1.42 | 1.14 | 1.77 | 1.35 | 2.18 | 1.32 |
| Ball indentation hardness | 50 | 80 | 170 | 170 | 80 | 190 | 30 | |
| Tensile stress | 25 | 30 | 70 | 80 | 50 | 75 | 25 | 95 |
| Sliding friction coefficient | 0.29 | 0.3 | 0.34 | 0.35-0.42 | 0.3 | 0.08-0.1 | 0.3-0.38 | |
| Melted temperature | 130 | 165 | 175 | 260 | 172 | 280 | 327 | 343 |
| Short-time highest application temperature | 90 | 140 | 150 | 170 | 150 | 260 | 260 | 300 |
| Coet of Inear expansion (10^-5/K) | 13-15 | 17 | 10 | 8 | 13 | 5 | 12 | 5 |
| Dielectric constant at 1 Mhz(10^6HZ) | 2.4 | 2.25 | 3.7 | 3.6-5 | 8 | 2.1 | 3.2-3.3 | |
| Volume resisrivity (Ω·cm) | >10^15 | >10^24 | >10^14 | 10^13 | 10^12 | >10^13 | 10^14 | 10^13 |
| flammability UL94 | + | + | - | (+) | (+) | - | + | + |
| Anti-weathering | - | - | - | - | - | - | + | - |
| Note: + =resistant; (+) =partly resistant; - =non-resistant | ||||||||
|
ZrO2 Ceramic Plain Bearings Ball Anti-Canker No Magnetism Isolation For Electricity
Al2O3 Ceramic Plain Bearings Ceramic Ball , At 1100℃ Density Is 3.7-3.99g/cm3
Precision Glass Balls 75% SiO2 , 15% NaO2 , 8% CaO2 Density Is 2.8g/Cm3 , Intension Is 700kg/Mm2
Si3N4 Ceramic Balls For Bearings High Intension Wearing Anti-Canker, Alkali Resistance
Ceramic Plain Bearings Sic Ceramic Balls , Higher rigidity Lower Rupture Toughness
Hybrid Construction Ceramic Ball Bearings , GCr15, AISI440C, 316, 304 For Inner & Outer Ring
Full Ceramic Ball Bearings ZrO2 Full Ceramic Bearings 1300 HRC
Full Complement Balls Ceramic Plain Bearings Si3N4 For High Speed Circumgyration
Corrosion Resistance Ceramic Plain Bearings ZrO2 Material Ceramic Cage
