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604ceramic bearing 4*12*4

604ceramic Bearing 4*12*4

Min. Order:
1 Piece
Payment term:
T/T Payment in advance
Delivery time:
according to quantity
Technical Parameters:
Product Designations:
604
Structure:
ball bearing
Inside Diameter:
4 mm
Outside Diameter:
12 mm
Thickness:
4 mm
Weight:
0.0017g ( Zro2) 0.0009( sI3N4) 0.00034 (plastic) KG
Brand:
KMK
Precision Rating:
po-p6
Bearing Material:
stainless steel ,plastic , ceramic , chrome steel
Seals Type:
open
604ceramic Bearing 4*12*4

 604 ceramic bearing have excellence performance as special electrical and magnetism resistance , could be used in awful environment andspecially condition.

Comparison of bearing material technical data:

 
 

Performance

Unit

GCr15

9Cr18

Si3N4

ZrO2

 

 

Density

g/cm3

7.8

7.9

3.2

6

 

 

Thermal expansion α

10-6/

11

17

3.2

10.5

 

 

Elastic modulus E

GPa

208

200

320

210

 

 

Poisson's ratioμ

0.3

0.3

0.26

0.3

 

 

HardnessHV

800

700

1700

1300

 

 

Flexural strength δ

Mpa

2400

2600

900

1000

 

 

Compressive strength δ

MPa

2000

3500

 

 

Toughness Kc

Nm/cm2

20

25

7

11

 

 

Thermal conductivity λ

W/mk

30-40

15

3.5

2.5

 

 

Electric resistance Ω

mm2/m

1

0.75

1018

1015

 

 

Specific heat

J/KgK

450

450

800

400

 

 

Temperature

.

120

150

1000

800

 

 

Corrosion-resistant

No

Weak

Strong

Strong

 

 

Stress cycles (50% failure probability)

10*106

10*106

50*106

50*106

 

 

Contact fatigue failure modes

Flake

Flake

Flake

Flake/Break

 

 

Magnetic

Exist

Exist

Not Exist

Not Exist

 

 

Dimensional stability

Poor

Poor

Good

Good

 

 

Insulating

Not insulated

Not insulated

Good

Good

 

 


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How can you buy 604ceramic Bearing 4*12*4 on the Internet?
High quality 604 ( 0.0017g ( Zro2) 0.0009( sI3N4) 0.00034 (plastic) kg Mass, ID: 4 mm OD: 12 mm WD: 4 mm , po-p6 Accuracy Class , stainless steel ,plastic , ceramic , chrome steel Material ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 604. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.
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