News

What's The Ring ,Rolling Element And Seal Materials?
 

What's The Ring ,Rolling Element And Seal Materials?

Rings Materials

Steel 45#,50Mn(carbon structural steel),42CrMo(alloy structural steel).50Mn and 42CrMo are usually used.Their chemical component and mechanics capability are showed in the form 1 below.

Material

Chemic component %

Mechanic Capability

C

Si

Mn

Cr

Mo

b

Tensile strength

s

Yield strength

5

Elongation

 

Reduction of are

AKU Impact value

Standard

Mpa

%

J

42CrMo

0.38-

0.40

0.17-

0.37

0.50-

0.80

0.90-

1.20

0.10-

0.25

1080

930

12

45

63

GB/T3077

50Mn

0.48-

0.56

0.17-

0.37

0.70-

1.00

-

-

645

390

13

40

31

GB/T699


Rolling element Materials

It is made of chrome steel GCr15 or GCr15SiMn.

?Steel ball should accord with the standard of GB/T308-2002,
Roller should accord with the standard of GB/4661-2002.

? Rolling element tolerance should be chosen based on slewing bearing tolerance grade which should accord with form 2.

Bearing’s Tolercane Grade

Steel Ball

Cylindrical Roller

a

Dw

Exceed

-

30

50

To

30

50

-

0.6

G40

G20

G60

G100

?

5

G40

G60

?


Seal Materials

It is usually made of NBR,iron,felt,or other things which meet the capability.

Steel number comparison between China & other countries, follow form 3.

Type

ChinaGB

(YB)

USSR

TO

CT

USA

AISI SAE

U.K

BS

Japan

JIS

France

NF

Germany

DIN

Carbon structural

Steel

45

45

1045

 

S45C

C45

C45,

CK45

50Mn

50T

C1050,

1052

En43C

 

XC48

 

Alloy sturctural

steel

40CrMo

 

4140

En19A

 

42CD4

42CrMo


Please click here to contact our experts to get more information and FREE QUOTE.

Previous   [Return Home] [Print] [Go Back]   Next

Categories

Contact Us

Hi, how can I help you?debbie