Name: Ceramic ball bearing 6804 6804 rs bearing
Brand: ZYSL
Availability: InStock

Product Details

Product Description

ZYSL Ceramic Bearings (Full Ceramic Bearings & Hybrid Ceramic Bearings)

ZYSL is a specialized manufacturer of Ceramic Bearing. Full Complement ceramic bearings,Ceramic Balls.

A: Hybrid Ceramic Bearing:

Ceramic bearings offer a significant performance improvement from those made from traditional steel. Our ceramic bearings are manufactured from silicon nitride (Si3N4), an exceptionally hard non-metallic material rated for speeds to 2 million dN, offering a wide selection of benefits.

Hybrid Bearings have steel rings and ceramic balls. Si3N4 Ball is the most popular for the balls as it has only 40 percent of the density of bearing steel but is much harder giving greater wear resistance. Zirconia is heavier with 75 percent of the density of steel so is less suitable for hybrid bearings..

There are two types of hybrid ceramic bearings that we can produce:

1: Chrome Steel rings (or Stainless rings) with Si3N4 balls Nylon Cage

2: Chrome Steel rings (or Stainless rings) with Full Si3N4 balls no cage

Those Bearings have been tested by the Japanese machine and passed with a very good quality.

B: Full Ceramic Bearing :

Full Ceramic Bearings are made entirely of ceramic material and are superior to common steel bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM's, reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present. Applications such as cryopumps, medical devices, semiconductors, machine tools, turbine flow meters, food processing equipment, robotics and optics. Ceramic materials commonly used for bearings are Silicon Nitride (Si3N4), Zirconia Oxide (ZrO2), or Silicon Carbide (SiC.)

C: Ceramic Balls:

We are special in making Silicone Nitride Balls (Si3N4 Balls,Zicronia Balls (ZrO2 Balls),Sic Ceramic Balls , Aluminum Oxside Valve (AI203) ceramic balls.
Compared with steel, ceramic materials are noted for their better or particular characters, such as wear-resistance, corrosion resistance, high temperature resistance, electrical insulation (except SiC), non-magnetic, high strength, high rigidity, and low specific gravity. These properties qualify them for replacing steel to make bearings serve in conditions of higher speed, harsh environment and less lube, and decrease wear, noise, vibration and maintenance time of bearings, and eventually increase performance, reliability and life of bearings.

Advantages:

1.High precision bearings,P4 ,P5 and P6.

2.Rings are made of refined Chrome steel.stainless steel 440C

3.Cage:Peek & PTFE cage .(can assure constant working under 250 centigrade)and peek cage also is the ideal cage for the high speed as it can provide the lubrication during bearing working, and it has the property of self-lubrications.However for normal applications, steel cage and Nylon cage is enough.

4. Balls: we use G3,G5 high precision Si3N4 ball for the high speed.

5. Radial clearance: Normal C0,or C3.

6.Not only for the high speed, but also Hybrid bearings has the insulation functions. Hence for the small size of bore dia.40mm ,also can be used for the insulation bearing purpose.

7.Full ball hybrid also can be produce as per our production picture.

All-ceramic bearings have good to excellent corrosion resistance, are non-magnetic and, apart from silicon carbide, are electrically insulating. All-ceramic bearings can be used in high to very high temperatures if supplied without a cage (full complement).

Electrical resistance: Si3N4 best, then ZrO2, then SIC which is conductive.High temp resistance:

SiC best (1100C), then Si3N4 (1000C), then ZrO2 (400C) Corrosion resistance:

SIC (excellent), then Si3N4 (very good) and ZrO2 (good)Load capacity:

SIC highest then Si3N4, then ZrO2 Fracture toughness:

ZrO2 best, then Si3N4, then SiC

All-ceramic bearings have lower load and speed ratings than steel or hybrid bearings. The speeds are lower due to the lower precision and roundness of the rings and the loads are lower because the material is more brittle. Under heavy loads and particularly heavy shock loads, there is a risk of cracking. For the same reason, great care should be taken with interference fits. Zirconia is the least brittle so it will handle shock loads and very small interference fits better than the other ceramic materials with silicon carbide being the most brittle. Shock loads should be avoided with all-ceramic bearings. Great care should be taken when using ceramic bearings (especially silicon nitride and silicon carbide) on steel shafts at high temperature due to the difference in expansion coefficient and the relative brittleness of ceramics.

Products Show

Our Service

1.High speed, High Precision, Low Noise, Long Service Life

2.Wide Array of Applications

3.Large Inventories

4.Small order accept

5.Competitive Prices and High Quality

6.Various Brands

7.Require little maintenance

8. OEM is supported

9. Our company insists on the "quality first, credit first" business ideas and our product specification is well-founded. We have a good reputation in the international market by our perfect service and sufficient supply.

Our Company

Jinan Shenglei Bearing co.,Ltd is a product and trade integrated company specializing in bearings. We have more than twenty years' experence in technical support and service provided for bearings in industrial field. We have our own factory, which is located in China's bearing production base--Shandong province. Covering more than 3000 square meters, the factory possesses many pieces of advanced manufacturing equipment. We have about 300 staffs, 20 technicians and 20 quality controllers. So one of our biggest advantages compared others is that we can provide the best factory price based on the same good quality.

The company has passed ISO9001 Quality Management System and is managing the production in strict compliance with the international and domestic standards. "ZYSL" is the company's registered trademark. The main products include tapered roller bearings, self-aligning roller bearings, cylindrical roller bearings, deep groove ball bearings, self-aligning ball beairngs, angular contact ball bearings, thrust ball bearings, pillow block bearings, joint bearings, needle bearings, linear bearings, auto bearings,etc. Our bearing are mainly used in industry, machinery, rolling mill, textile, railway, metal lurgy, mining and other major manufacturers and facilitate the dealers in supporting and assistance service at any time. In addition,our technical team has also developed ceramic bearings, plastic bearings and stainless steel bearings etc. Our products are mainly exported to Middle East, Southeast Asia, South America, India, Pakistan, Canada, Singapore, Korea and other countries and areas.

We have been serving every customer by virtue of our superior pre-sale technological support and after-sale tracking service since the company was established. We dedicate to the proposition of "Quality assurance, great variety of goods, favorable price and punctual supply" and comply with the management idea of "Integrity,pragmatic and win-win "so that the most superior service and goods can be provided for our customers. We will also offer customers the most perfect service in terms of the selection of imported bearings, application direction, performance testing, and technology communication to grant every customer faith in all aspects of our products. We are sincerely looking forward to cooperating with more customers as well as friends and pushing forward prosperity of business. Warmly welcome people of vision from all walks of life in bearing industry to visit us for discussion and cooperation.

Packing & Delivery

Package:

A.tube package + outer carton + pallets
B.single box + outer carton + pallets
C.tube package + middle box + outer carton + pallets
D.According to your request.

Payment Terms:
A.100%T/T

B.30%T/T in advance,70% aganist copy of B/L(For large order)
C.Western Union

Our Certifications

Customer Photo

FAQ

Q: Are you trading company or manufacturer ?

A: We are the manufacture of bearings for more than 20 years, "Quality is our culture".

Q: How long is your delivery time?

A: Generally it is 1-3 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: What causes bearing noise?

A: Bearing noise is a function of both the bearing and the way it is used. Some external factors that affect bearing noise include lubricant type, excessive bearing load, and improper installation. Once the abnormal noise occurred, you can contact our engineers, we will help you find the reasons and provide the appropriate solutions.