High Precision Bearing Steel 50mm 50.8mm Balls for Wind Power
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Product Highlights
- Wide Diameter Range: Professional production line covers 0.2mm to 250mm diameters.
- Multiple Precision Grades: Available in G5 to G2000 grades per ISO, DIN, or AFBMA standards.
- High Precision Standards: Strict tolerance control for roundness, diameter variation, and surface roughness.
- Diverse Material Options: Chrome steel options include AISI52100, GCr15, 100Cr6, and SUJ2.
- Wind Power Application: Specifically designed high precision bearing steel balls for wind power systems.
- Custom Packaging: Flexible packaging options including steel drums, cartons, and wooden cases.
- Manufacturer Reputation: Subsidiary of SINOMACH GROUP with over 25 years of export experience.
- Broad Industry Application: Suitable for bearings, linear systems, valves, and various mechanical parts.
Product Attributes
- Customization
- Available
- Material
- Bearing Steel
- Package
- Steel Drum, Carton, Wooden Case
- Model NO.
- 50mm, 50.8mm, 2\"
- Transport Package
- Carton+Plywood Case
- Specification
- 30mm
- Trademark
- NO
- Origin
- China
- HS Code
- 84829100
- Production Capacity
- 20 Tons Per Month
Product Images of High Precision Bearing Steel 50mm 50.8mm Balls for Wind Power
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Product Description
Product introduction
Material: Chrome(AISI52100/ GCr15/GCr15SiMn/ 100Cr6/ Suj2 and so on)
Diameter:0.2mm - 250mm(Professional production line 4.763mm 3/16",7.938mm 5/16" ,9.525mm 3/8"and so on )
Grade: G5 / G10 / G16 / G20 / G28 / G40 / G100 / G200 / G500 / G1000 / G2000 according to ISO, DIN, or AFBMA standard
Chemical composition
| Material |
C% | Si% | Mn% | Cr% | Cu% |
| 52100 | 0.98~1.10 | 0.15~0.35 | 0.25~0.45 | 1.30~1.60 |
|
| GCr15 | 0.95~1.05 | 0.15~0.35 | 0.25~0.45 | 1.40~1.65 |
0.25 |
| GCr15SiMn | 0.95~1.05 | 0.45~0.75 | 0.95~1.25 | 1.40~1.65 | 0.25 |
| 100Cr6 |
0.93~1.05 | 0.15~0.35 | 0.25~0.45 | 1.35~1.60 | |
| SUJ2 |
0.95 or 1.10 | 0.15 or 0.35 | 0.50 max | 1.30~1.60 |
All products
Precision table
|
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 |
|
Our Company
JIANGSU WALLONG-HSIN MACHINERY ENGINEERING CORPORATION LTD. a solely funded subsidiary of SINOMACH GROUP (the biggest machinery group in China), is the limited state-owned Corp. with registered capital of 30 million RMB, located in Wuxi city, Jiangsu Province, which is one of the best rolling elements industry area in China.Our office area is around 3000 square meters and our workshops area is around 50,000 square meters.
Founded in 1994, we own abundant manufacture and export experience, build up well business reputation and keep a long and steady trade partnership with hundreds of customers from different countries and regions. Thanks to the strong support by our parent company SINOMACH , our assets structure keeps good and the state of operation rises steadily.

Application
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
*Linear systems,Ball bearing slides
*Free Wheels and casters,rail wheels
*Ball transfer units,air cargo and conveyor
*Stainless steel and tungsten carbide ball point pens
*Various types of valves for liquids and gases,etc.
*CV Joints,hydraulic motors and oilers
*Safety belt balls,car seat guides balls
*motor bikes and bicycles ball parts
*Furniture fitting,drawer slide balls
*Coconut grinding balls, coffee milling balls
*Cosmetic balls,nail polish balls
*Pump balls
About the Supplier
Company Profile
JIANGSU WALLONG-HSIN MACHINERY ENGINEERING CORPORATION Ltd., a subsidiary of SINOMACH ( the largest machinery group in China. Ranked as No. 250th of TOP500 largest enterprise in the world in year 2018 ), solely funded by SINOMACH CAPITAL and SINOTEST ( subsidiaries of SINOMACH as well ), is the professional limited state-owned Corp, with registered capital of 30 million RMB, located in Wuxi city, Jiangsu Province. Our office area is around 5000 square meters and our workshops area is around 50.000 square meters.
Founded in 1992, we own abundant export experience, build up well business reputation and keep a long and steady trade partnership with hundreds of customers fromdifferent countries and regions. Thanks to the strong support by our parent company SINOTEST and SINOMACH CAPITAL, our assets structure keeps good and the state of operation rises steadily. With the development of China reform and opening up and global economic integration, after 25 years of development, JIANGSU WALLONG-HSIN has grown into a modern technology & manufacturing enterprise focusing on three major areas: Technology and service, engineering contracting and material testing. We undertake industrial projects and supplying, installation and commissioning of complete set equipment, agricultural machineries, industrial products, subcontractor business and OEM business.
We have set up a global market system including Europe, North America and Southeast Asia as its leading markets spreading to South America and Africa.
For more details, please browse our websites below,
In the future, JIANGSU WALLONG-HSIN will adhere to the mission of "integrating global resources, sharing human civilization" and commit itself to growing into a world-class enterprise by innovation.
About Our Factory & Business Background
- Address
- 35/F, Tower A, Times International Mansion, No. 555 East Canal Road, Wuxi, Jiangsu, China
- Average Lead Time
-
Peak Season Lead Time: 1-3 months
Off Season Lead Time: one month
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What materials are available for the bearing steel balls?
- We offer Chrome steel materials including AISI52100, GCr15, GCr15SiMn, 100Cr6, and SUJ2.
- What is the diameter range of the balls?
- The diameter ranges from 0.2mm to 250mm, with professional production lines for standard sizes like 4.763mm, 7.938mm, and 9.525mm.
- What precision grades are available?
- We provide grades G5, G10, G16, G20, G28, G40, G100, G200, G500, G1000, G2000 according to ISO, DIN, or AFBMA standards.
- What is the lead time for orders?
- Peak season lead time is 1-3 months, while off-season lead time is approximately one month.
- Can the packaging be customized?
- Yes, we offer customized packaging options including steel drums, cartons, and wooden cases.
- What are the main applications for these balls?
- Applications include ball bearings, linear systems, valves, conveyor systems, furniture fittings, and wind power equipment.
- Who is the manufacturer?
- The manufacturer is JIANGSU WALLONG-HSIN MACHINERY ENGINEERING CORPORATION LTD, a subsidiary of SINOMACH GROUP.
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