Customization: | Available |
---|---|
Contact Angle: | 60° |
Aligning: | Aligning Bearing |
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Rock Bit S-2 Tool Steel balls are designed to work well in very extreme conditions that are common when drilling deep into the ground. The balls provide the strength and toughness that is required to withstand heavy force and the abrasion of pulverized rock. These balls also have unusually good wear characteristics due to the materials hardening capabilities.
Rock Bit S-2 Tool Steel balls are manufactured for bearings that are used in well drilling, oil field drilling and equipment and offshore drilling platforms.
Material: Rock Bit S-2 Tool Steel
Diameter:2mm - 200mm (Professional production line 4.763mm 3/16",7.938mm 5/16" ,9.525mm 3/8"and so on )
Grade: G20 / G28 / G40 / G100 / G200 / G500 / G1000 / G2000 according to ISO, DIN, or AFBMA standard
Chemical composition
A.F.B.M.A. STANDARDS(U.S.A) |
||||||||||
AFBMA GRADES |
ROUNDNESS |
LOT DIAMETER VARIATION |
BASIC DIAMETER TOLERANCE |
MAX. INCREMENTS |
SURFACE RCUGHNESS |
|||||
INCHES |
μm |
INCHES |
μm |
INCHES |
μm |
INCHES |
μm |
INCHES |
μm |
|
3 |
.000003 |
0,08 |
.000005 |
0,13 |
±.00003 |
0,76 |
.000010 |
0,25 |
.5 |
0,012 |
5 |
.000005 |
0,13 |
.000010 |
0,25 |
±.00005 |
0,27 |
.000010 |
0,25 |
.8 |
0,020 |
10 |
.000010 |
0,25 |
.000020 |
0,51 |
±.0001 |
2,54 |
.000010 |
0,25 |
1.0 |
0,025 |
16 |
.000016 |
0,38 |
.000032 |
0,76 |
±.0001 |
2,54 |
.000010 |
0,25 |
1.0 |
0,025 |
24 |
.000024 |
0,63 |
.000048 |
1,27 |
±.0001 |
2,54 |
.000010 |
0,25 |
2.0 |
0,050 |
48 |
.000048 |
1,27 |
.000096 |
2,54 |
±.0002 |
5,08 |
.000050 |
0,12 |
3.0 |
0,076 |
100 |
.0001 |
2,50 |
.0002 |
5,08 |
±.0005 |
12,70 |
.0001 |
2,54 |
5.0 |
0,120 |
200 |
.0002 |
5,08 |
.0004 |
10,20 |
±.001 |
25,40 |
.0002 |
5,08 |
8.0 |
0,203 |
500 |
.0005 |
12,70 |
.001 |
25,40 |
±.002 |
50,80 |
.0005 |
12,70 |
- |
- |
1000 |
.001 |
25,40 |
.002 |
50,80 |
±.005 |
127,00 |
.001 |
25,40 |
- |
- |
DIN5401(GERMAN STANDARDS) |
||||
DIN 5401 GRADE |
ROUNDNESS μm |
LOT DIAMETER VARIATION μm |
BASIC DIAMETER TOLERANCE μm |
GAUGE INTERVAL μm |
I |
0,25 |
0,50 |
±10,25 |
0,50 |
II |
0,50 |
1,00 |
±10,50 |
1,00 |
III |
1,00 |
2,00 |
±11,00 |
2,00 |
IV |
2,00 |
4,00 |
±14,00 |
4,00 |
V |
25,00 |
50,00 |
±75,00 |
50,00 |
VI |
- |
400,00 |
±200,00 |
- |
APPROXIMATE EQUIVALENT GRADES BETWEEN ISO 3290,AFBMA,DIN |
|||||||
GRADES |
AAAA |
AAA |
AA |
A |
B |
C |
∅mm |
ISO3290 |
5 |
10 |
16 |
28 |
40 |
100 |
up to 3 included |
10 |
16 |
28 |
40 |
100 |
from 3 to 6 included |
||
10 |
16 |
28 |
40 |
100 |
200 |
from 6 to 10 included |
|
16 |
20 |
28 |
40 |
100 |
200 |
from 10 to 20 included |
|
28 |
40 |
100 |
200 |
from 20 to 30 included |
|||
40 |
100 |
200 |
from 30 to 50 included |
||||
40 |
100 |
100 |
200 |
over 50 |
|||
AFBMA |
5 |
10 |
16 |
24 |
48 |
100 |
up to 3 included |
10 |
16 |
24 |
48 |
100 |
100 |
from 3 to 6 included |
|
10 |
16 |
24 |
48 |
100 |
200 |
from 6 to 10 included |
|
16 |
16 |
24 |
48 |
100 |
200 |
from 10 to 20 included |
|
24 |
48 |
100 |
200 |
300 |
from 20 to 30 included |
||
48 |
48 |
100 |
200 |
300 |
from 30 to 50 included |
||
48 |
100 |
100 |
200 |
300 |
over 50 |
||
DIN |
class - |
class I |
class II |
class III |
class IV |
- |
up to 3 included |
- |
I |
II |
III |
IV |
- |
from 3 to 6 included |
|
I |
II |
III |
- |
IV |
- |
from 6 to 10 included |
|
- |
III |
III |
IV |
- |
- |
from 10 to 20 included |
|
II |
- |
III |
IV |
- |
- |
from 20 to 30 included |
|
- |
- |
III |
IV |
- |
- |
from 30 to 50 included |
|
- |
- |
III |
IV |
- |
- |
over 50 |
JIANGSU WALLONG-HSIN MACHINERY ENGINEERING CORPORATION LTD has created a complete range in order to offer advanced solutions and an outstanding technical services. The application range includes:
*High quality Ball Bearings components
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*Pump balls