Ball Screw Manufacturer and Supplier
DLY supplies cold rolled ball screws, precision ground ball screws, ball screw nuts and machined ball screw assemblies for CNC machines, automation equipment, linear modules, woodworking machinery and industrial motion systems.
As a ball screw manufacturer in China, DLY supports standard models, customized length, end machining according to drawings, nut matching and batch supply for overseas distributors, wholesalers, machine builders and automation project buyers.
DLY Ball Screw Product Catalog
Below you can find DLY ball screw products by model, size, accuracy grade, lead and application. If you cannot find the exact ball screw you need, please send us your drawing, sample photo or basic specifications for confirmation.
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DFU Ball ScrewDLY DFU Ball Screw is a double-nut flanged ball screw designed for CNC machines, automation equipment, packaging machinery and heavy-duty linear motion systems.Shaft material: S55C; nut material:
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SFU Ball ScrewSFU Series Ball Screw Wholesale – High Quality from China | High Precision, Low Backlash, Long Life for CNC & Automation1. Smooth operation with stable performance2. High rigidity and strong load
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High Speed Ball ScrewHigh Speed Ball Screws feature low noise, compact lightweight design, high Dm-N rating (>220,000), high acceleration/deceleration capability, and precision accuracy (LJB/T17587-1, C5–C10). Ideal for
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High Load Ball ScrewHigh load ball screw is a precision transmission device designed specifically for heavy-duty, high torque, and high thrust working conditions. Its core function is to efficiently achieve the mutual
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Nut Rotary Type Ball Screw SetNut Rotary Type Ball Screw Set uses a fixed screw shaft and a rotating nut unit to achieve linear motion. It is suitable for long-stroke and high-speed equipment where a traditional rotating screw
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SFE 2525 Ball ScrewSFE 2525 High-Speed Large Lead Ball Screw1.Model Identification: SFE series stands for Large Lead design, specifically engineered for high-speed linear motion.2.Technical Specifications: 2525 denotes
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32mm Ball ScrewDLY 32mm Rolled Ball Screws - Thread Diameter 321.Models: SFU32 / SFI32 / DFI32 / SCI32 / SCM32 / SFE32 / SFA322.Leads: 4, 5, 6, 10, 32, 64mm3.High precision & smooth motion4.Long-lasting, low-noise
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SCI Ball ScrewSCI Series Flangeless Internal Circulation Ball Screw1.Flangeless design2.Internal circulation type3.Screw shaft material: S55C4.Nut material: 20CrMo5.Hardness: 58–62 HRC6.Accuracy classes: C5, C7,
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SFK Ball ScrewSFK Miniature Ball Screw – High Precision Internal Recirculation Ball Screw for Compact Automation1.Internal Recirculation Design2.Direct Replacement Compatibility3.Lead Options:1mm, 2mm, 2.5mm, and
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SFY Ball ScrewCNC SFY Series, Y Type Nut BallRolled Ball ScrewEnd-Caps Circulation Type, Flange TypeLength CustomizeSingle NutTypically used for large lead screwsScrew Shaft Material:S55C Ball Nut Material:20CrMo
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DFI Ball ScrewDLY DFI double nuts with flange ball screw1. Space saving nternal circulate design2. Low friction force with 1/3 over acme screw3. Ensure for high accuracies4. Micro feed with tolerance within in
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SFI Ball ScrewDLY SFI Ball Screw1.Internal Circulation, Flange Type2.High rigidity and high durability3.Strong Dust-proof4.Suitable for Contaminative Environments5.Ball Screw Shaft:S55C;Nut Body:20CrMo6.Accuracy
How to Identify DLY Ball Screw Specifications
DLY ball screw model codes include information such as nut type, thread direction, shaft diameter, lead, ball circulation structure, flange type, production process, accuracy grade, shaft length and preload or clearance requirement. Understanding these codes helps buyers confirm the correct ball screw before quotation, production and installation.

What This Code Helps Buyers Confirm
A complete ball screw code can help confirm the main product structure before quotation. If your current model code is incomplete, DLY can also check the specification according to your drawing, sample photo or basic dimensions.
| No. | Code Item | Meaning | Explanation for Buyers |
|---|---|---|---|
| 1 | Nut Type Codes | SFS, DFS, SFI, DFT, SFT, SFV, DFV, SFE, SFK, SBH, SCI S: Single nut D: Double nut F: With flange C: Without flange U: DIN nut T: T type nut I: I type nut V: V type nut E: E type nut K: K type nut |
The nut type affects installation structure, flange shape, mounting space, rigidity and replacement compatibility. Buyers should confirm the nut code before ordering or replacing an existing ball screw. |
| 2 | Direction of Helix | R: Right L: Left |
R means right-hand thread and L means left-hand thread. Right-hand ball screws are more common, while left-hand ball screws should be clearly marked when required. |
| 3 | Shaft Diameter | Shaft dia. (mm) | Shaft diameter is shown in millimeters. It affects load capacity, rigidity, installation size and matching support units. |
| 4 | Lead | Lead (mm) | Lead means the linear travel distance of the nut when the screw rotates one revolution. It affects speed, torque and positioning performance. |
| 5 | Number of Turns / Circuits / Rows | No. of Turn / Circuits of Turn × Row | This code shows the ball circulation structure inside the nut. It is related to load capacity, nut length, rigidity and service performance. |
| 6 | Flange Type | N: Not cutting S: Single cutting D(U): Double cutting |
Flange type should match the machine mounting direction, installation space and nut fixing method. |
| 7 | Production Code | G(P): Grinding F(T): Rolled |
Grinding is usually used for higher precision requirements. Rolled ball screws are suitable for general automation, regular models and batch purchasing. |
| 8 | Accuracy Grade Code | C0, C1, C2, C3, C5, C7, C10 | The accuracy grade should be selected according to positioning accuracy, repeatability requirement, machine type and budget. |
| 9 | Overall Length of Shaft | Overall length of shaft (mm) | Overall shaft length should be confirmed together with effective stroke, end machining length and support unit distance. |
| 10 | Axial Clearance and Preload Code | P0, P1, P2, P3, P4 | This code is related to axial clearance and preload. Buyers should confirm it according to backlash control, rigidity, running smoothness and application requirements. |
Faster Quotation Tip
If you are not sure how to read the ball screw model, please send DLY the model number, product photo, drawing or basic dimensions. Our team can help confirm the suitable ball screw specification before quotation.
Contact DLY for Ball Screw Specification SupportHow to Choose the Right Ball Screw
Choosing a suitable ball screw is not only about selecting a diameter or comparing price. For CNC machines, automation equipment, linear modules, woodworking machinery and industrial motion systems, buyers usually need to confirm the screw diameter, lead, total length, nut type, accuracy grade, end machining, load, speed and installation space.
If you are replacing an existing ball screw, the model number, sample photo or drawing is very helpful. If you are designing a new machine, DLY can help check the basic selection details according to your application and motion requirements.
1. Confirm the Screw Diameter
The screw diameter affects load capacity, rigidity, installation size and matching support units. Common ball screw diameters include 12 mm, 16 mm, 20 mm, 25 mm, 32 mm, 40 mm and larger sizes.
2. Select the Proper Lead
Lead means the linear travel distance when the screw rotates one revolution. A smaller lead is often used for better control, while a larger lead is suitable for higher speed movement.
3. Check the Total Length
Total length should be confirmed together with effective stroke, end machining length and installation distance. For customized ball screws, a drawing is recommended before production.
4. Choose the Nut Type
Nut type should match the installation space, flange direction, load requirement and machine structure. Common options include single nut, double nut, flanged nut and compact nut structures.
5. Select the Accuracy Grade
C5, C7 and C10 ball screws can be selected according to positioning accuracy, repeatability, machine type and budget. Ground ball screws are used for higher precision requirements, while rolled ball screws are suitable for many general automation applications.
6. Confirm End Machining
End machining should match the support unit, bearing seat, coupling, motor connection and installation drawing. DLY can support cutting, thread processing, keyway, bearing seat and other end machining requirements.
7. Consider Load and Speed
Load, speed and working direction affect ball screw selection. Vertical installation, heavy load, high speed or long stroke applications may require more careful confirmation.
8. Match Related Components
Ball screws are often used with support units, couplings, nut seats, linear guideways and motors. Matching related components correctly helps reduce installation problems.
Information Needed for Ball Screw Selection
To help DLY recommend or quote the correct ball screw faster, please provide the following information when available:
Custom Ball Screw Machining Support
DLY can supply standard ball screws and customized ball screw assemblies according to buyer drawings, samples or machine requirements. If the product you need is not a regular model, our team can help confirm the ball screw size, nut type, total length, end machining details and matching components before production.
For non-standard ball screw processing, DLY supports customized length, machined ends, bearing seats, threads, keyways, flat milling, nut flange hole confirmation and nut matching. This is useful for CNC machines, automation equipment, linear modules, machine tool repair and replacement projects.

Ball Screw Lead and End Machining Options
Ball screw lead and end machining can be customized according to machine design. Lead selection affects linear speed, positioning performance and driving torque, while end machining determines whether the screw can be correctly installed with support units, bearings, couplings and motors.
DLY can process ball screw ends according to buyer drawings, including flat milling, ring groove, internal thread lathing, hexagonal milling, two-end machining and keyseat milling. If you already have a support unit model or installation drawing, please send it together for confirmation.
One-Stop Procurement for Ball Screw Components
DLY does not only supply ball screws. For buyers who need complete linear motion purchasing support, DLY can also provide related ball screw components such as support units, nut seats, couplings and motor bases according to machine design and order requirements.
One-stop procurement helps reduce model mismatch, repeated communication and purchasing time, especially for distributors, wholesalers, machine builders and automation equipment buyers who need ball screws and related parts together.
Need Ball Screws and Related Components Together?
Send DLY your ball screw model, support unit model, motor size, drawing or sample photo. Our team can help check the matching details before quotation.
Get Ball Screw Component QuotationBall Screw Use and Maintenance Notes
Ball screws are precision transmission components. Correct handling, lubrication, dust protection and installation alignment can help reduce abnormal wear, noise and early failure.
The following notes are a short maintenance guide for buyers, machine builders and equipment users. For detailed installation, lubrication interval and troubleshooting instructions, DLY can provide further technical communication according to the machine condition.
Lubrication
Adequate lubrication is necessary during ball screw operation. Insufficient lubrication may increase friction, wear, heat and service-life risk.
Lubricating oil or grease should be selected according to speed, load, working environment and maintenance plan. The lubrication condition should be checked regularly during equipment use.
Quick Maintenance Reminder
During regular maintenance, check lubrication condition, contamination, abnormal noise, rough running feel and protection cover condition. Replenish or replace lubricant according to the machine working condition, speed, load and operating environment.
Ball Screw Applications
Ball screws are widely used in equipment that requires linear motion, smooth transmission and repeatable positioning. For different machines, buyers should choose the ball screw diameter, lead, accuracy grade, nut type and end machining structure according to load, speed, stroke and installation space.
DLY ball screws are commonly used in CNC machines, automation equipment, woodworking machinery, linear modules, packaging machines, 3D printers and laser equipment. For special applications, DLY can also support model selection and custom machining according to drawings.
CNC Machine Tools
Ball screws are used for feed axes, positioning systems and machining movement in CNC lathes, milling machines, engraving machines and machining centers.
Automation Equipment
In automation systems, ball screws support repeated linear movement, lifting, pushing, positioning and transfer mechanisms.
Woodworking Machinery
Ball screws can be used in woodworking machines for cutting, engraving, feeding, lifting and adjustable motion structures.
Linear Modules
Ball screws are often combined with linear guideways, supports, couplings and motors to build compact linear modules and motion units.
Packaging Machinery
In packaging machines, ball screws can be used for positioning, pushing, lifting, feeding and repeated adjustment mechanisms.
3D Printers and Laser Equipment
Ball screws can be used for Z-axis lifting, precision adjustment and stable linear travel in 3D printers, laser cutting machines and laser engraving equipment.
Need Ball Screws for Your Equipment?
Send DLY your machine type, load, speed, stroke, installation drawing or existing ball screw model. Our team can help confirm a suitable ball screw model and machining requirement.
Get Ball Screw Application SupportWhy Choose DLY as Your Ball Screw Manufacturer?
DLY focuses on ball screws, ball screw nuts, linear guideways, linear shafts and related linear motion components. For overseas buyers, we support standard ball screw supply, custom machining, drawing confirmation, product matching and export packaging.
As a factory-based supplier, DLY combines ball screw manufacturing experience, production equipment, inspection support and export service. This page mainly helps buyers choose and purchase ball screws. For more company information, you can visit the related DLY pages below.
Manufacturing Experience
DLY has long-term experience in linear motion component manufacturing and supply.
Custom Machining Support
Ball screw length, end machining and nut matching can be confirmed according to drawings.
Product Matching
DLY can support ball screws, ball screw nuts, supports, couplings and related components together.
Export Service
Packaging and delivery can be arranged according to product length, order quantity and transport method.
Learn More About DLY
To avoid repeating too much company information on this ball screw category page, you can visit the following pages for more details about DLY’s factory, history, patents, exhibitions and service team.
Step-by-Step Ball Screw Ordering Guide
To help DLY confirm your ball screw quotation faster, please provide the model number, drawing, sample photo or basic specifications. For custom machined ball screw assemblies, end machining drawings are especially helpful before production.
Send Model or Drawing
Send the ball screw model number, drawing, sample photo or machine requirement for initial checking.
Confirm Key Specifications
Confirm screw diameter, lead, total length, nut type, accuracy grade, preload or clearance requirement.
Review Custom Details
Check end machining, support unit matching, nut direction, installation space and related component requirements.
Receive Quotation and Lead Time
DLY provides quotation, lead time and packaging suggestion after the main specifications are confirmed.
Production, Inspection and Delivery
Ball screws are produced, inspected, packed and shipped according to confirmed order requirements.
FAQ About DLY Ball Screws
What ball screw models does DLY supply?
DLY supplies different ball screw models including SFU, SFE, SFI, DFU, DFI, SCI, SCM and customized ball screw assemblies according to buyer requirements.
Can DLY customize ball screws according to drawings?
Yes. DLY can support custom length, end machining, bearing seat processing, thread machining, keyway processing, nut matching and drawing confirmation for ball screw assemblies.
How should I choose between rolled and ground ball screws?
Rolled ball screws are suitable for general automation and cost-sensitive batch purchasing. Ground ball screws are more suitable for precision machines requiring higher accuracy and smoother motion.
What information should I send for a quotation?
Please send the model number, screw diameter, lead, total length, nut type, accuracy grade, end machining drawing, quantity and application if available.
Can I order ball screw nuts or related components together?
Yes. DLY can supply ball screw nuts, support units, nut seats, couplings, motor bases and related linear motion components together according to your order needs.
Does DLY support sample orders and batch purchasing?
Yes. DLY supports sample orders, regular model purchasing and batch supply for distributors, wholesalers, machine builders and automation equipment buyers.
How does DLY pack ball screws for export?
DLY uses suitable packaging according to product length, order quantity and transport method to reduce bending, surface scratches and transport damage during export delivery.
Can DLY help confirm the ball screw model if I only have a sample photo?
Yes. You can send a sample photo, model number, machine information or basic dimensions. DLY can help check the possible ball screw specification before quotation.
Need Ball Screw Price or Custom Machining Support?
Contact DLY for ball screw model selection, quotation, end machining confirmation and batch supply support.
Zhejiang DLY Automation Manufacturing Co., Ltd. is well-known as one of the leading ball screw manufacturers and suppliers in China. Please feel free to buy high quality ball screw made in China here and get pricelist from our factory. For customized service and OEM/ODM service, contact us now.
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