Model NO.: 689
Materical: ZrO2 Si3N4
Tolerance Codes: ABEC-1, ABEC-3, ABEC-5
Stock: Large
Trademark: OEM
Transport Package: Carton
Specification: ZrO2 Si3N4
Origin: China
HS Code: 69091100
ZrO2 689 Full Ceramic BearingCeramic Bearings Compared with Steel Bearings:
1. Self-weight is 30% to 40% of steel bearings:It can reduce the centrifugal force during operation, and it can operate at 1.5 times the speed of steel bearings. The hardness is equivalent to steel, and wear resistance and pressure resistance are 5-7 times that of steel. The thermal expansion coefficient is less than 20% of bearing steel..The friction coefficient is less than 30% of bearing steel, heat resistant, tensile and bending strength are equivalent to metal.
2. Maximum service life is five times longer than steel bearings:Under load, the centrifugal force decreases, the roller load reduces, the friction coefficient is small, which reduces the temperature rise during operation, minimizes friction, and extends the raceway's lifespan..
3. High-speed ceramic bearing:It has advantages such as low elasticity, light weight, low friction coefficient, high pressure resistance, and cold tolerance. It can be used in high-speed spindles and precision equipment operating between 12,000 RPM/min to 75,000 RPM.
4. High-temperature ceramic bearing:It can withstand temperatures up to 1200°C and has good self-lubrication. There is no expansion due to temperature differences between 100°C and 800°C..It can be used in high-temperature equipment such as kilns, steelmaking, and smelting.
5. Non-magnetic:Ceramics are non-magnetic, so magnetic foreign objects and dust are not attracted. They also have low noise, reducing wear and tear. They are suitable for demagnetization, precision instruments, and other equipment.
6. Corrosion Resistance:Ceramics have excellent corrosion resistance. They are suitable for chemical machinery, marine vessels, marine equipment, electroplating devices, and electronic equipment.
7. Electrical Insulation:It can be used in insulation equipment..
8. Oil-Free Self-Lubrication:Â The ceramic material has oil-free self-lubrication properties, which prevents oil and grease lubrication and overcomes the problem that ordinary bearings cannot achieve self-lubrication. Therefore, it can be used in high-vacuum environments.



Our Factory Workshop:

Why choose us?
1. FREE SAMPLES: We will send free samples according to your request.
2. World-Class Bearings: We provide our customers with a wide range of indigenous bearings with world-class quality.
3. OEM or Non-Standard Bearings: Any requirement for non-standard bearings is easily fulfilled by us due to our extensive industry knowledge and connections.
4. Genuine Products with Excellent Quality: Our company has always proven its commitment to delivering 100% quality products with genuine intent.
5. After-Sales Service and Technical Assistance: We provide after-sales service and technical support based on customer requirements and needs.
6. Quick Delivery: Our streamlined supply chain ensures just-in-time delivery.
7. Cost Savings: We offer long-life, shock-resistant, and highly reliable bearings with excellent quality and performance, resulting in increased cost savings.
8. Prompt Response to Customer Queries: We believe that customer satisfaction proves our value well.
Company Information:
Company Name:Hangzhou Yizhou Mechanical and Electrical Equipment Co., Ltd.
Established: Year 2009.
Location: Jianggan District, Hangzhou City, Zhejiang Province.
Main Products: Automotive bearings, industrial bearings, electric bearings, toy bearings, brake discs, etc.
Scale: 256 employees, nearly 80 senior professionals.
Service: OEM, customized products, provide solutions
We have advanced automation equipment, perfect testing equipment, standardized process technology, and a superb technical development team and staff.
Yizhou has established more than 10 domestic and international sales and distribution networks, and our solutions are accepted by many Fortune 500 enterprises. Customer demand and product innovation are our continuous pursuit. Customer expectations and social responsibility drive the development of Yizhou.
FAQ:
1. Can the size and color be customized?
Yes, we can customize the size and color as per your preference.
2. What about the quality of the bearings?
Quality emphasis in all production processes, combined with 100% inspection for critical performance characteristics, ensures consistent product quality.
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3. Do you offer samples? And is it free or not?
Yes, we will provide free samples.
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How long is your delivery time?
We will deliver the goods within 15 days after your payment.

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