Precision Steel Balls 6.35mm 7mm 8mm AISI 52100 Chrome Steel Ball G10 Roller Steel Ball for Silent Bearing
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Product Attributes
- Customization
- Available
- Customized
- Customized
- Certification
- ISO
- Model NO.
- AISI 52100
- Standard Parts
- Yes
- Universal
- Yes
- Type
- Chrome Steel Ball
- Material
- Chrome Steel
- Size
- 6.35mm 7mm 8mm
- Grade
- G10-G1000
- Model Number
- Chrome Steel Ball
- Surface
- High Polished
- Feature
- Corrosion Resistance
- Hardness
- 58-62
- Shape
- Spherical
- Application
- Precision Bearing or Screw Ball or Slide Rail
- Transport Package
- Bags/Boxes/Barrels
- Specification
- 20kg/25kg 1 box/1 bag
- Trademark
- OPQ
- Origin
- Shandong, China
- Package Size
- 10.00cm * 5.00cm * 5.00cm
- Package Gross Weight
- 0.500kg
- Lead Time
-
20 days (1 - 1000 kg)
30 days (1001 - 2000 kg)
To be negotiated ( > 2000 kg)
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Precision Steel Balls 6.35mm 7mm 8mm AISI 52100 Chrome Steel Ball G10 Roller Steel Ball for Silent Bearing
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Product Description



Grade | Sphere diameter variation | Spherical error | Surface roughness |
G10 | 0.25 | 0.25 | 0.020 |
G20 | 0.5 | 0.5 | 0.032 |
G40 | 1 | 1 | 0.060 |
G60 | 1.5 | 1.5 | 0.080 |
G100 | 2.5 | 2.5 | 0.100 |
G200 | 5 | 5 | 0.150 |




OPQ mainly produces bearing steel balls and stainless steel balls with a diameter of 3.175mm-38.1mm.The precision grade of bearing steel balls is G10-G1000,and the precision grade of stainless steel balls is G20-G1000. It has ISO9001 qualitysystem certificate and TS16949 automotive parts certificate, suitable for bearings, stainless steel bearings, hardware, wheels, instruments, guides, polishing, chemicals and solid crushing, etc. It is a backbone enterprise specializing in the production of stainless steel balls and bearing steel balls, and a member unit of the Steel Ball Branch of the China Rolling Body Association. It mainly produces bearings, stainless steel bearings, hardware, wheels instruments, guides, polishing, chemicals and solid crushing, etc.
We also produce electroplated steel balls and hollow steel balls according to customer requirements






We are based in Shandong, China, start from 2021,sell to Eastern Asia(30.00%),Northern Europe(20.00%),South America(20.00%),North America(15.00%),Africa(10.00%),Western Europe(5.00%). There are total about 51-100 people in our office.
1) Strict detection during production.
2) Strict sampling inspection on products before shipment and intact product packaging ensured.
Before we received the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.
We have do the chemicals plant for about 20years. A 80-employee team devotes their whole efforts to producing and supplying high quality with competitive-price products to our customers globally.
Yes. We can print your Logo on both the products and the packages if you can meet our MOQ.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI2551924". Items marked "" are certified.
Company Profile
Welcome to OPQ Group!
The OPQ Group consists of two companies: OPQ Chemical and OPQ Steel Ball.
OPQ Chemical is located in Jinan, the capital city of Shandong Province, and is mainly engaged in the development and production of phenolic and quinones, additives, dyestuffs, and also involves other fine chemicals, cosmetic raw materials, etc. OPQ Chemical Co., Ltd have a history of over twenty years in Chemical area.
While there are many chemical factories in China, Shandong stands out as a hub for the chemical industry. OPQ is located in the most prominent region of Shandong, which can gives customers direct access to the source of chemicals. As a result, we can provide high-quality products and ensure safe delivery. Additionally, we have an efficient environmental protection system in place to guarantee stable production.
OPQ Steel Ball was established in Ningyang, Tai'an City, the hometown of steel balls in China. It is known as "Ningyang Steel Balls, Famous All Over the World".
OPQ mainly produces bearing steel balls and stainless steel balls with a diameter of 3.175mm-38.1mm. The precision grade of bearing steel balls is G10-G1000, and the precision grade of stainless steel balls is G20-G1000. It has ISO9001 quality system certificate and TS16949 automotive parts certificate, suitable for bearings, stainless steel bearings, hardware, wheels, instruments, guides, polishing, chemicals and solid crushing, etc. It is a backbone enterprise specializing in the production of stainless steel steel balls and bearing steel balls, and a member unit of the Steel Ball Branch of the China Rolling Body Association. It mainly produces bearings, stainless steel bearings, hardware, wheels, instruments, guides, polishing, chemicals and solid crushing, etc. We also produce electroplated steel balls and hollow steel balls according to customer requirements.
In order to further expand the global sales market, the company established OPQ Steel Ball Co., Ltd., which focuses on foreign trade business. From Customers to Factory, just need one step, not need the trading company. So that global customers can reduce communication and procurement costs in the shortest procurement process.
Since the establishment of the company, we have always adhered to the policy of quality assurance and user experience, put product quality in the most important position, and established a complete management system, especially the inspection and tracing system of each process from raw materials entering the factory to finished product packaging, to ensure that the products meet the quality requirements of users...
It is mainly engaged in the development and production of stainless steel balls, bearing steel balls and carbon steel balls. Our steel balls are available in a wide range of diameters and can also be customized to meet specific customer requirements. They also cover an extensive surface precision range, from G10 to G2000.
Our products, including chemical raw materials and steel balls, are exported to many countries and regions in Europe, the Americas, Asia and Africa.
We firmly believe that customer's success is our success, and devote ourselves to building long-term relationships with all friends globally.
Welcome to visit OPQ Group!
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- No. 2201, Building 6, North Area, Xianwen Shijia Garden, No. 3911 Aoti Zhonglu, Shunhua Road Subdistrict, High-Tech District, Jinan, Shandong, China
-
Plant Area
- 60 square meters
-
Number of Employees
- 5
-
Registered Capital
- 3,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
- Peak Season Lead Time, within 15 workdays, Off Season Lead Time, one month
-
Nearest Port
- Qingdao Port
-
Minimum Order Quantity
- 1 kg
-
Supply Chain Partners
- 3
Our Production Capability & Technical Expertise
-
Main Products
- Organic intermediate, Agricultural Chemicals, Chemical Auxiliary & Catalyst, Essential Oil, Balsam & Fine Chemicals, Biochemical
-
Inspection Type for Finished Products
- Random inspection Visual inspection Function inspection
-
Inspection Method for Finished Products
- Finished product checked by packing staff
-
Customization Options
- Minor Customization
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2021-09-27
-
Export Year
- 4 years
-
Main Markets
- North America, South America, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea)
-
Repeat Buyers Choice
- 30%~50%
-
Number of Foreign Trading Staff
- 4
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
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