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ZrO2 ceramic bearing 689 618/9  

Product Description

Product Description

689 618/9  ZrO2 ceramic Ball Bearing

 A part of our products:

Full ceramic bearing introduction:

     Full Ceramic Bearings have the characteristics of anti-magnetic insulation, abrasion resistant,

oil-free self-lubricating and enduring extreme high or low temperature, so they can be used for

harsh environment and even under some special condition. The material of rings and rollers is jar

gonia(ZrO2) and the holder uses poly back fluoride(PTFE) as standard configuration. Generally,

we can use the reinforced nylon made of glass fiber 66(GRPA66-25), special engineering plastics

(PEEK, PI), nonrust steel(AISI SUS316 SUS304), brass(Cu) and so on. Ceramic deep groove ball

bearings are made entirely of ceramic material and are superior to common Steel Angular Contact

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. 

The advantages of ceramic Deep Groove Ball Bearing:

1) The ceramic bearing has the feature of corrosion resistance, the ceramic rolling bearing suitable

for operation under harsh conditions covered corrosion media. 

2) Since the ceramic ball rolling has lower density than steel, so which is much lighter, so when you

rotate the outer ring centrifugal effect can be reduced by 40% , thus greatly extended service


3) The expansion and contraction of the ceramic affected smaller than steel, and therefore the

gap of the bearing is constant, the bearing allows the temperature changes more severe environment.

4) As the ceramic has higher modulus of elasticity than steel, when the force is not easy deformation,

and therefore help to improve the operating speed and achieve high accuracy.


1)  Power Tools

2)  Fans

3)  Washing Machines

4)  Pumps

5)  Electric Motors

6)  Sport Apparaus

7)  Textile Machined

8)  Skateboard Skate

689 618/9  ZrO2 ceramic ball bearing pictures show


Related models and specifications of 689 618/9  ZrO2 ceramic ball bearing




O.D Width Chamfer Load Rating Maximuum Seed Weight


mm mm mm











11 3 0.15





686 6 13 3.5 0.15 1.08 0.44 33000 42000 0.0019
687 7 14 3.5 0.15 1.17 0.505 31000 40000 0.0021
688 8 16 4 0.2 1.61 0.715 29000 38000 0.0031
689 9 17 4 0.2 1.72 0.82 28000 36000 0.0032
6800 10 19 5 0.3 1.83 0.925 26000 34000 0.005
6801 12 21 5 0.3 1.92 1.04 22000 30000 0.006
6802 15 24 5 0.3 2.08 1.26 20000 28000 0.007
6803 17 26 5 0.3 2.23 1.46 19000 26000 0.008
6804 20 32 7 0.3 4 2.47 17000 22000 0.019
6805 25 37 7 0.3 4.3 2.95 15000 19000 0.022
6806 30 42 7 0.3 4.7 3.65 13000 17000 0.026
6807 35 47 7 0.3 4.9 4.05 11000 15000 0.029

Introduction of Deep Groove Ball Bearings:

Deep groove ball bearing mainly take radial load as well as take moderate axial load. With less coefficient of friction, high limiting speed, large size range and varations of structure, they are suitable for precision instruments, low noise motors, automobiles,motorcycles,and other common machinery, as a widely used type of bearings in machinery industry.

Sealed deep groove Ball Bearings
Deep groove ball bearings with sealing disks (contacting gaskets) or covering disks (non-contacting gaskets) allow simple designs. Bearings are offered both with one and two sealing or covering disks. Bearings with two-side gaskets are filled with top quality grease. Sealed bearings can be used in a temperature range from – 30 °C to max. 110 °C (short term) for contacting and up to max. 120 °C for non-contacting gaskets. One should note here, that the period of grease use will reduce at a permanent temperature of > 70 °C. Special greases are offered for such cases.
Deep groove ball bearings with annular groove in outer ring
Deep groove ball bearings with annular groove in the outer ring simplify the design in many cases because they can be fixed simply by a snap ring and axially in the housing to save space. These bearings with or without snap ring are available only on request.
Deep groove ball bearings tested for noise
As standard, deep groove ball bearings are subjected to noise tests up to bore parameter 12. In addition, a 100 % rolling test is carried out. These bearings can also be subjected to a noise test if required by the customer (on request only).
Deep groove ball bearings without cage suffix are provided with a steel sheet cage. Differing cage designs are indicated at the bearing type as bearing symbol (suffix). Deep groove ball bearings with cages of fiber-glass reinforced polyamide 66 are suitable for temperatures of maximum 120 °C for longer periods of time. When using oil lubrication (for non-sealed bearings), the additives contained in the oil may affect the period of use of the cage if the temperature exceeds 100 °C for a longer period of time. In addition, deep groove ball bearings with brass cage and current-insulated designs are available on request.


Single-row deep groove ball bearings accept radial and axial forces and can thus be used in a wide range of applications. They have a simple design, are self-retaining, suitable for high up to very high speeds and resistant in operation and during maintenance and they are offered at a very favorable price. Due to these characteristics, self-aligning deep groove ball bearings are the anti-friction bearings which are used most. The standard version of SLF deep groove ball bearings is provided with a recess for inserting sealing and/or covering disks. The only exception is series 160... . Here, only a version without sealing and/or covering disk can be supplied. (Exception 16006.2ZR)

Company Information

Company Introdurction

Jinan Sheng Lei bearing Co., Ltd. is located in the "Spring City" Jinan. We Insist the integrity and pragmatic, win-win business philosophy, adhere to the people-oriented, advancing enterprise spirit and regard "quality first, customers utmost" as enterprise concept. Our company has established a professional sales network to help customers get products information at the first time. Our products are exported to many countries now, we have won good reputation and feedbacks from our customer. We offer high quality products with reasonable price and short delivery time.

Company Show



Certificate: ISO 9001:2008

The production process:

Trade Shows


Participate in the exhibition: 

Customer visition:

Packaging & Shipping

Package package + outer carton + pallets
B.single box + outer carton + pallets package + middle box + outer carton + pallets
D.According to your request.


A: 30% T/T in advance .70% against copy of B/L

B.30% T/T in advance .70% against L/C at sight

C.Western union


F:50% in advance,the balance should be paid after seeing the picture of total goods.

Our Services

Why us

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.




1. 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


2. What causes bearing noise?

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.

3 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.



4.  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.



Contact person:

Any questions, please don't hesitate to contact us!


Welcome your cooperation !

Contact us if you need more details on Ceramic Bearing 618/9. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Ceramic Bearing 618/9、Ceramic Bearing 618/9. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Ceramic Bearings

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