If you want to inquiry me, please write your mail address in your inquiry. thankyou very much.

We can supply the following bearings and steel balls:

1)Deep groove ball bearings

2)Thrust ball bearings

3)Tapered roller bearings

4)Spherical roller bearings

5)Cylindrical roller bearings

6)Pillow block bearings

7)Chrome steel ball AISI52100(1/8"-1" G1000-G10)

8)Carbon steel ball AISI1015,AISI1085(1/8"-1-5/16" G1000-G40)

9)Stainless steel ball AISI304,AISI316,AISI420,AISI440,AISI201,202(0.5MM-1" G1000-G20)

Material Comparison List
                      

CHINA
    

USA
    

JAPAN
    

GERMANY
    

SWEDEN

GB
    

AISI
    

JIS
    

DIN
    

SIS

9Cr18Mo
    

440C
    

SUS440C
    

X110CrMo15
    

3230

1Cr18Ni9
    

302
    

SUS302
    

X12CrNi188
    

1.43

0Cr19Ni 9
    

304
    

SUS304
    

X5CrNi189
    

1.4301

0Cr17Ni12Mo2
    

316
    

SUS316
    

X5CrNiMn18
    

10(1.4401)

3Cr13
    

420
    

SUS420J2
    

X30Cr13
    

1.4028

Category
    

Stainless steel ball

Material
    

AISI 420 440C 304 302 316

Size
    

0.5mm--25.4mm, 1/4",3/16",5/32",1/8",7/32",5/16",7/8",1"

Grade
    

G100-G3000

Hardness ( HRC)
    

HRC58-65

Application
    

Bicycle, bearing, pulley, slide, handcraft, shelf, l age, hardware, grinding media

Standard
    

GB/T-308-2002, GB/T1148-93

Matched Standard
    

DIN, JIS, ASME

Packing
    

standard packing or according to customers' requirement

Chemical composition

MATERIAL
    

C%
    

Si%
    

Mn%
    

P%
    

S%
    

Cr%
    

Mo%
    

Ni%
    

N

AISI440C
    

0.95-1.20
    

1.00
max
    

1.00
max
    

0.03
max
    

0.03
max
    

16.0-18.0
    

0.4-0.75
    

\
    

\

AISI302
    

0.15max
    

1.01
max
    

2.00
max
    

0.045
max
    

0.03
max
    

17.0-19.0
    

\
    

8--10
    

0.1max

AISI304
    

0.08max
    

1.02
max
    

2.00
max
    

0.04
5max
    

0.03
max
    

17.0-29.0
    

\