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Ball screw NSK EM4020-4EG
- Manufacturer Part Number
- EM4020-4EG
- Brand
- NSKBrand we market
- Category
- Linear motion
- Subcategory
- Linear motion
- Series
- HMD
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Description
NSK EM4020-4EG is a ball screw reference, within Linear motion. Request a quote for EM4020-4EG via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The NSK HMD series ball screw is a linear motion component that converts rotation into axial displacement with high efficiency and repeatability. It is used in machine tools, machining centers, automation equipment and positioning systems where precision and rigidity are critical. MR Accesorios Industriales sells this line for plants and workshops in Argentina.
The HMD series designation is read from its code: for example, EM4020-4EG combines the nominal diameter, the lead, the number of circuits and the nut type. The initial numbers indicate the size, the numeric suffix the lead, and the final letters define the nut configuration and preload. Knowing this structure allows you to identify spare parts and variants without ambiguity.
In Argentine industry, HMD series ball screws are used in milling machines, CNC lathes, grinding machines, coordinate measuring machines, precision presses and automation equipment. Also in robotics, manipulators and high-accuracy transport systems. Their ability to withstand high axial loads and maintain positioning makes them suitable for intensive cycles.
To correctly select an HMD ball screw, take into account the axial load, rotation speed, length between supports and mounting type. Proper lubrication and sealing prevent contamination and extend service life. Alignment with the linear guide and nut preload are key to achieving the expected repeatability. MR Accesorios Industriales advises you on the choice.
NSK ball screws can be interchanged with those of other manufacturers, but it is essential to verify mounting dimensions, lead, diameter and load capacity. Matching the code is not enough: tolerances and rigidity must be compared. If you have the original ball screw or the code from another brand, send us the data and we will indicate the compatible alternative.
To request a quote for your NSK HMD series ball screw, send the complete code by WhatsApp to MR Accesorios Industriales. You can also inquire about other series or special sizes. We will reply promptly with the technical and commercial information you need for your equipment.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Eje o agujero
- 40 mm
Frequently Asked Questions
- What does the designation EM4020-4EG mean?
- The code EM4020-4EG identifies an NSK ball screw of the HMD series. The numbers indicate diameter and lead, while the letters and the final number define the nut type and preload. To interpret your specific code, contact us by WhatsApp.
- Is this ball screw compatible with other brands?
- Yes, it can be interchangeable with ball screws from other manufacturers, but dimensions, lead, diameter and load capacity must be verified. It is not enough for the code to be similar. Send us the data of the original part and we will advise you.
- How is a ball screw maintained?
- It requires adequate lubrication and protection against contaminants. Sealing and periodic cleaning are essential. Alignment and axial play must also be checked. For specific guidelines according to your application, consult our technical team.

