SFU1204 Nut for Ball Screw Replacement and Assembly
DLY SFU1204 nut is a compact recirculating ball nut designed for SFU1204 ball screws with 12 mm screw diameter and 4 mm lead. It is suitable for small CNC machines, automation modules, 3D printers, laser equipment and precision positioning systems that require smooth motion and low-friction transmission.
If you are looking for an sfu1204 ball nut for replacement, repair, assembly or spare parts stocking, DLY can help confirm the correct matching details before quotation.
What Is an SFU1204 Ball Nut?
An SFU1204 ball nut is the matching nut used with an SFU1204 ball screw shaft. The model name usually means a 12 mm nominal screw diameter and 4 mm lead. When the screw rotates, the steel balls inside the nut circulate between the screw groove and the nut raceway, converting rotary motion into smooth linear movement.
Compared with ordinary sliding screw nuts, an sfu1204 ball screw nut offers lower friction, higher transmission efficiency and smoother movement. It is often selected for compact equipment where space is limited but stable positioning is still required.
For replacement buyers, the most important point is matching. A ball screw nut sfu1204 must match the existing screw shaft diameter, lead, thread direction, flange size and mounting hole position.
When Should You Buy SFU1204 Nut Separately?
Many buyers do not always need to replace the complete ball screw. If the screw shaft is still smooth and usable, buying only the sfu1204 ballscrew nut can be a practical choice for maintenance, repair and spare parts supply.
Replacement and Repair
When the old nut has increased clearance, abnormal noise or poor smoothness, replacing the SFU1204 nut may help restore linear motion performance.
Spare Parts Stock
Distributors and repair companies can keep common SFU1204 ball nuts in stock for quick replacement and repeated customer demand.
Small Machine Assembly
OEM buyers may purchase SFU1204 nuts separately for compact linear modules, small CNC axes, 3D printer upgrades and automation fixtures.
SFU1204 Nut Basic Specifications
The SFU1204 ball screw nut is mainly selected according to screw diameter, lead, ball diameter, nut body size, flange size and mounting dimensions. Before ordering, please confirm whether your existing screw is a standard SFU1204 model or a customized version.
| Item | SFU1204 Nut Reference | What Buyers Should Check |
|---|---|---|
| Matched Screw | SFU1204 ball screw | Confirm the shaft is 12 mm diameter and 4 mm lead. |
| Nut Type | Flange ball nut | Check flange shape, mounting hole quantity and hole spacing. |
| Application | Compact linear motion | Suitable for small CNC, automation modules, 3D printers and positioning systems. |
| Ordering Method | Nut only or ball screw with nut | Choose nut only when the screw shaft is still in good condition. |
How to Confirm the Right Ball Screw Nut SFU1204
If you are replacing an old nut, please do not choose only by product name. Some machines use customized nuts or special mounting dimensions. The following details help DLY check the correct ball screw nut sfu1204 faster.
Model Marking
Send the model printed or marked on the old nut, such as SFU1204 or other related markings.
Screw Size
Confirm the screw shaft diameter and lead. For SFU1204, the common specification is 12 mm diameter and 4 mm lead.
Mounting Dimensions
Check flange size, hole spacing, hole diameter, nut body length and available installation space.
Photos or Drawing
Clear photos from the front, side and mounting surface can help us identify the nut type and avoid mismatch.
Applications of SFU1204 Ball Screw Nut
The sfu1204 ball screw nut is often used in compact motion systems where space, smoothness and repeatable movement matter more than heavy load capacity.
Small CNC Machines
Used for compact feed axes, engraving machines and light-duty CNC motion systems.
3D Printers
Suitable for Z-axis upgrades and small positioning structures requiring smoother motion than lead screws.
Automation Modules
Used in compact linear actuators, testing fixtures, feeding units and precision adjustment modules.
Spare Parts Supply
Suitable for distributors who need common SFU1204 nuts for replacement and maintenance demand.
Why Buy SFU1204 Ball Nut from DLY?
- DLY supplies SFU1204 nuts for replacement, assembly and spare parts stocking.
- Support for nut-only orders and complete SFU1204 ball screw with nut assemblies.
- Model checking based on screw diameter, lead, flange dimensions, photos or drawings.
- Suitable for overseas distributors, OEM buyers, machine builders and repair service companies.
- Factory-direct communication for stable quality, batch supply and faster quotation confirmation.
FAQ About SFU1204 Nut
Q1: What is an SFU1204 nut?
An SFU1204 nut is a recirculating ball nut designed for SFU1204 ball screws, commonly with 12 mm diameter and 4 mm lead. It helps convert rotary motion into smooth linear movement.
Q2: Can I buy only the SFU1204 ball nut without the screw shaft?
Yes. DLY can supply the SFU1204 ball nut separately. However, the nut must match your existing screw shaft diameter, lead and mounting dimensions.
Q3: What is the difference between an SFU1204 ball screw nut and a lead screw nut?
An SFU1204 ball screw nut uses circulating balls to reduce friction, while a lead screw nut usually works through sliding contact. The ball nut provides smoother motion and higher efficiency.
Q4: How can I confirm whether my old ball screw nut is SFU1204?
You can check the model marking, measure the screw diameter and lead, and compare the flange size and mounting holes. You can also send photos to DLY for checking.
Q5: When should I replace the whole ball screw instead of only the nut?
If the screw shaft has rust, scratches, dents or serious raceway wear, replacing only the nut may not restore smooth motion. A complete SFU1204 ball screw with nut is recommended.
Q6: What information should I send for quotation?
Please send the required quantity, model, screw size, application, photos or drawing. For replacement use, photos of the old nut and screw shaft are helpful.
Get SFU1204 Ball Nut Price from DLY
Looking for an sfu1204 ball nut, ball screw nut sfu1204, sfu1204 ball screw nut or sfu1204 ballscrew nut? Send us your model, quantity, photos or drawing. DLY will help check whether you need only the replacement nut or a complete SFU1204 ball screw with nut assembly.
Email: dlyexport2@dlybearing.com
WhatsApp: +86 16605788856
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