Changzhou Liangze Bearing Factory
Main products:needle bearing,bearing roller,bearing pin
Products
Contact Us
  • Contact Person : Ms. Iris
  • Company Name : Changzhou Liangze Bearing Factory
  • Tel : 86-519-86398986
  • Fax : 86-519-86390991
  • Address : Jiangsu,changzhou,NO.13 Zhenbei West Road, Niutang Town ,Wujin area.
  • Country/Region : China
  • Zip : 213163

4*19.8 mm NRA needle pin using in bearing

4*19.8 mm NRA needle pin using in bearing
Product Detailed
1.High precision 2.Smooth surface 3.Can meet customer's requirements 4.Good quality and reasonable price 5.Good service

We are manufacturer of cylindrical roller ,needle roller and shaft  in Changzhou,China.

 1.The details of NRA 4*9.8mm needle pin

Material standard:GCr 15

Diameter :4mm/Length: 19.8mm/Tolerance:0/-0.003mm Hardness:HRC60~65/Surface finish:within0.1μm

Chamfer:0.2/Roundness:within 1.0μm

 picture of 4*19.8mm needle pin:

2.The details of our products:

Table1   Details of our products

Material

  GCr15,Stainless steel,20crmo,40crmo,45#

Our main products

  Needle roller,roller,shaft,needle roller  bearing

Needle roller length tolerance

  0~0.2mm

Roller length tolerance

  0~0.03mm

Diameter tolerance

  0~0.001mm

Surface finish

  Within 0.0001mm

Diameter

  0.7mm to 80mm

Length

  2mm to 150mm

Hardness standard

 HRC58—65

Grade

 G1,G2,G3,

Chamfer

0.1 ,0.2,0.3

Roundness

within 0.001mm

USE

Widely be used in machinery

Certificate

ISO 9001:2008 

(1)Needle roller

 

 

Table2 Dimension Tolerance and Geometrical Precision

Quality  grade

Deviation

(μm)

Tolerance of each sort (μm)

Group of sort Deviation  (μm)

Roundness Tolerance(Max)

Length Tolerance

G2

0-10

2

0/-2,-1/-3,-2/-4

1

h13

-3/-5,-4/-6,-5/-7

-6/-8,-7/-9,-8/-10

G3

0/-10

3

0/-3,-1.5/-4.5,-3/-6

1.5

-4.5/-7.5,-6/-9,-7/-10

G5

0/-10

5

0/-5,-3/-8,-5/-10

2.5

needle roller&cylindrical roller

 

 

(2)Shaft

3.About material-----GCr15 

 (1)What's GCr15?

 GCr15 is the mostly widely used high-carbon  chromium  bearing steel  with  less  alloy content and good performance.It has high and uniform hardness, good 

abrasion resistance and high contact fatigue performance after heat-treatment 

and tempring.

(2)The details of GCr15

Elment

C

Si

Mn

P

S

Cr

Content

0.95-1.05

0.15-0.35

0.20-0.40

≤0.027

≤0.020

1.30-1.65

 (3)GCr15 in other country

 executive standard:

China GB/T18254-2002

Japan JIS G4805:1991 

USA ASTM A295:1998 

Unified digital code :B00150

Country

China

US

Janpan

Germany

France

ISO

Grade

GB

AST

JIS

DIN,DINEN

NP,NPEN

ISO630

Bearing steel

Chrome steel

GCr9

51100

SUJ1

   

GCr15

52100

SUJ2

100Cr6

100Cr6

1

9Cr18Mo

440C

SUS440C

Z100C

D17

  

5.Show you part of our process flow:

  

6.Package

7.This is our Plant:

8.Quality control:You should believe the quality of our products,because we have these machines to control our quality.

9.Certification

We supply a vast array of needle roller,cylindrical roller and shafts,.Whatever your needs, we're here to help!

We manufacture both standard and custom needle roller.

 For more informations,please contact with me!

4*19.8 mm NRA needle pin using in bearing



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