Ball Screw Nut Seat Bearing Seat Coupling Assembly Module
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Product Highlights
- High Precision C7 Standard: Accuracy up to C3(0.008/300mm), ensuring high performance for automation.
- Low MOQ for Customization: Accepts orders starting from just one piece, ideal for prototyping and small batches.
- Durable GCR15 Material: Made from GCR15 steel with HRC58-62 hardness for long-lasting wear resistance.
- Fast Quotation Service: Quotes provided within 1 hour for standard inquiries, ensuring quick project initiation.
- CE Certified Quality: Products meet CE certification standards, backed by 20 years of manufacturing experience.
- Custom Drawing Support: Fully supports OEM/ODM with custom nut styles, leads, and diameters based on drawings.
- High Load Capacity: Bear capacity up to 370 tons, suitable for heavy-duty linear motion applications.
- Flexible Payment Terms: Supports T/T, LC, PayPal, and Western Union with negotiable percentages for large orders.
Product Attributes
- Customization
- Available
- Flange
- With Flange
- Nut Number
- According to Customer's Drawing
- Model NO.
- 3205 3210 4005 4010 5010 6310 6320 8010 8020
- Nut Type
- Circulator
- Precision
- C7
- Type
- Inner Loop
- OEM
- Yes
- Minimum Order Quantity
- One
- Material
- Gcr15
- Custom
- Yes
- Transport Package
- Non-Fumigating Wooden Cases
- Trademark
- shuntai
- Origin
- Nanjing
- Production Capacity
- 10000pieces/Year
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 Ball Screw Nut Seat Bearing Seat Coupling Assembly Module
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Product Description
Ball screw is generally produced with the world's highest level of mechanical equipment, especially in the grinding, assembly, inspection of the factory environment of each process, the temperature and humidity are strictly controlled, and the accuracy is fully guaranteed due to the perfect quality management system.
Ball screws with large leads usually rotate very fast and have high requirements for fluency
| Product name | Ball Screw |
| Model | Custom parts |
| Dia | 16,20,25,32,40,50mm |
| Lead | 16,20,25,32,40,50mm |
| Accuracy | C7(0.05/300mm),C5(0.018/300mm),C3(0.008/300mm) |
| Nut style | Single or double |
| Precompression | 3%,8%or as needed |
| Bear | The maximum capacity is 370 tons |
| Material | GCR15,440C,S55C |
| Material handling | Quench |
| Hardness | HRC58-62 |
| End processing | according to customer's drawing |
| Delivery time | 15-30days |
The screw module is usually composed of ball screw, nut holder, coupling, and support seat (bearing seat), which is an important part of the linear module and can be used in many automation equipment.
We can also customize some special shape nut non-standard parts, if you need to contact us



The main products of the factory are ball screw, lead screw, linear guide rail and other accessories, accumulated 20 years of rich production experience, and technology, equipment, scale, brand advantages continue to expand.
Now the factory covers an area of 15000 square meters, more than 50 employees, the products have passed the CE certification.
Enterprise production line has 4 meters of high-precision German Reshi rotary milling machine, several precision internal and external thread grinding machines, 6 meters lathes, 8 machining centers, 4 meters CNC guideway grinding machine, 4 meters CNC surface grinding machine, many CNC high-precision slider grinding machine, automatic lead screw running-in instrument, coordinate measuring instrument, projector and other advanced testing equipment.



1. Why choose Suntai?
With more than 20 years of production experience, it is China's high-quality ball screw manufacturing base
2. Do you have a minimum order quantity requirement?
No, just one. More is better
3. What are your main products?
Ball screw, linear guide, ball spline and parts processing
4. How to customize (OEM/ODM)?
Send drawings or custom requirements to us
5. When can I get the quotation?
We usually make a quotation within one hour of receiving your inquiry. If it is a complex process, it may take a little longer, but our quotations usually do not exceed 12 hours
6. Can I have a sample?
Yes, but you need to pay for the sample
7. What are your terms of payment?
If the total price is less than $1000, 100% before production; If the total value exceeds $1000, 50% of the total value before production and 50% of the total value before delivery (specific percentages can be negotiated)
About the Supplier
This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASI2441591". Items marked "" are certified.
Company Profile
The main products of the factory are ball screw, lead screw, linear guide rail, CNC parts, casting parts, forging parts and other accessories, accumulated 20 years of rich production experience, and technology, equipment, scale, brand advantages continue to expand.
Now the factory covers an area of more than 1500 square meters, more than 30 employees, the products have passed the CE certification.
Enterprise production line has 4 meters of high-precision German Reshi rotary milling machine, several precision internal and external thread grinding machines, 6 meters lathes, 8 machining centers, 4 meters CNC guideway grinding machine, 4 meters CNC surface grinding machine, many CNC high-precision slider grinding machine, automatic lead screw running-in instrument, coordinate measuring instrument, projector and other advanced testing equipment.
In 2024, in order to provide customers with better products, the factory has also added more than 10 more advanced machine tools.
Companies adhering to the market as the basis, details to win the business philosophy, customer first service purpose, continuous innovation, development, improve the technical level, intended to provide new and old customers with better quality products and services.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 655, Tianlu Road, Lukou Street, Jiangning District, Nanjing (Jiangning Development Zone), Jiangsu, China
-
Plant Area
- 1500 square meters
-
Number of Employees
- 30
-
Registered Capital
- 5,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1 Set
-
Supply Chain Partners
- 4
Our Production Capability & Technical Expertise
-
Main Products
- Ball Screw, Lead Screw, Linear Guide, Roller Guide, Circular Guide, Sliding Block, KK Module
-
Production Lines
- 2
-
Production Machines
- CNC Lathe, Saw Bench, Engine Lathe, Cylindrical Grinder, Internal Thread Grinding Machine, Leadscrew Grinding Machine, Vertical Drilling Machine, CNC Machining Center, Whirlwind Milling Machine, Horizontal Surface Grinding Machine, Alignment Running Machine
-
QA/QC inspectors
- 1 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization
-
ODM Service Available
- Yes
-
R&D Engineers
- 2 people
-
Traceability of Raw Materials
- Yes
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2005-04-19
-
Export Year
- 19 Years
-
Main Markets
- Europe, Domestic
-
Repeat Buyers Choice
- 80%~100%
-
Number of Foreign Trading Staff
- 3
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE
-
Cooperated with Fortune 500
- No
FAQ
- What is the minimum order quantity?
- The minimum order quantity is just one piece. We welcome small orders and prototypes.
- What precision levels are available?
- We offer C7 (0.05/300mm), C5 (0.018/300mm), and C3 (0.008/300mm) precision levels.
- How can I customize the product?
- You can send us your drawings or specific custom requirements, and we will manufacture accordingly.
- What is the delivery time?
- The standard delivery time is 15-30 days, depending on the complexity and quantity of the order.
- What are the payment terms?
- For orders under $1000, 100% payment before production. For orders over $1000, 50% deposit and 50% before delivery.
- Can I get a sample before bulk order?
- Yes, samples are available, but you need to pay for the sample cost.
- What materials are used for the ball screw?
- We primarily use GCR15, 440C, and S55C materials, with hardness ranging from HRC58-62.
- What is the maximum load capacity?
- The bearing seat can support a maximum capacity of 370 tons.
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