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Ball screw NSK RNFCL 1212A3
- Manufacturer Part Number
- RNFCL 1212A3
- Brand
- NSKBrand we market
- Category
- Linear motion
- Subcategory
- Linear motion
- Series
- RNFCL
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Request your quote via WhatsApp or email, with the quantity and time frame you need.
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Description
NSK RNFCL 1212A3 is a ball screw reference, within Linear motion. Request a quote for RNFCL 1212A3 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The NSK RNFCL series ball screw is a linear transmission component that converts rotation into axial displacement with high efficiency and repeatability. It is used in CNC machine axes, machining centers, measuring equipment and automation where precision and rigidity are critical. MR Accesorios Industriales sells this line for plants and workshops in Buenos Aires, Argentina and throughout the country.
The RNFCL series designation is read in blocks: the letters identify the family and the type of assembly, and the numbers that follow indicate nominal diameter and lead. In the example RNFCL 1212A3, the first digits correspond to the screw diameter and the following ones to the thread lead. The A3 suffix indicates precision or mounting variants within the same series. To choose the correct part number, have the drawing or the equipment identification on hand and send us the complete part number.
These screws are used in machine tools, turning and milling centers, grinding machines, laser and plasma cutting equipment, pick and place systems, and coordinate tables. In Argentina they are found in the metalworking, automotive, food and packaging industries, where repeatability in positioning and low friction are sought. They are also used in retrofits of old machines to improve productivity without changing the structure.
To select a ball screw, take into account the axial load, rotation speed, length between supports and permissible axial play. Mounting requires aligning the supports with the nut axis, lubricating with suitable grease or oil, and protecting the assembly with bellows or wipers to prevent chips from entering. Preload and play are adjusted according to the application; poor alignment accelerates raceway wear and reduces service life.
NSK ball screws can be interchanged with those of other brands if diameter, lead, length, nut type and precision match. It is not enough for the part number to be similar: you must verify the mounting, the thread and the axial play. If you have another brand's part number or an unidentified part, send us the data and we'll indicate the compatible alternative or quote the NSK screw you need.
To request a quote for your NSK RNFCL series ball screw, write to us on WhatsApp with the complete part number or the main dimensions: diameter, lead, total length and nut type. At MR Accesorios Industriales we reply promptly with the quote and the technical information you need for your machine.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- How do I identify the exact part number of an NSK RNFCL screw?
- The part number combines series letters and numbers that indicate diameter and lead. In RNFCL 1212A3, the first digits are the diameter and the following ones the lead; the A3 suffix defines the variant. Send us the complete part number or the screw dimensions and we'll quote it.
- What should I consider when replacing a ball screw?
- Check diameter, lead, total length, nut type and precision. Also the mounting at the ends and the axial play. If the screw is from another brand, send us that data and we'll indicate the compatible alternative or quote the equivalent NSK one.
- How are NSK ball screws lubricated and maintained?
- They are lubricated with grease or oil recommended by the manufacturer according to the application. It is key to keep the screw clean, check the sealing and monitor alignment. A periodic maintenance plan extends service life and preserves precision. For technical questions, ask us on WhatsApp.

