S689-2RS stainless steel 689-2RS hybrid ceramic bearing 9x17x5mm

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..

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.)

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.

Product

Related models

Our Main Product

Our compamy information

Jinan Maolei Bearing co.,Ltd is a manufacturer and trader specialized in the research, development and production of bearings. is located in the "Spring City" Jinan, with convenient transportation.

The core products of Jinan Maolei bearing Co,.Ltd have a variety of bearings ranging from deep groove ball bearings, self-aligning ball bearings, self-aligning roller bearings, wheel hub bearings, linear bearings, pillow block bearing, ceramic bearings, plastic bearings, cylindrical roller bearings, angular contact ball bearings, tapered roller bearings, thrust ball bearings, thrust roller bearings and needle roller bearings to spherical plain bearings and other products. All of our products comply with international quality standards ISO 9001 and are greatly appreciated in a variety of different markets throughout the world.

We insist on the philosophies of "integrity" and "pragmatic & win-win business". We also adhere to the "people-oriented" and "advancing" enterprise spirit . "Quality first and customers utmost" is honored as our enterprise concept.

Our Services

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.

Packing&Delivery

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

Certification

FAQ

1. How long is your delivery term?
Our standard product delivery term is normally 30 days. A new product development cycle is 60 days in normal. Under normal circumstances, there are standing stock for regular types. You can email us to learn more details.
2. Where is your port of shipment located?
Our main port of shipment is Guangzhou port, and we may operate at other ports if required by the customer.
3. I couldn’t find a design to fit my application in your catalog. Can you help me design a bearing?
Yes, technical expertise is available to assist you with engineering design for custom products. Available options include, but are not limited to, custom rings, retainers, balls, shields, lubricants, and packaging. We look forward to working with you to satisfy your rotary motion requirements.

If you have any questions,pls contact me