Needle roller bearing NTN HK4012V2

NTN HK4012V2 is a needle roller bearing reference, within Bearings. Request a quote for HK4012V2 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN HK series needle roller bearing is a single-row radial bearing with a steel outer ring and cage-guided needles, without an inner ring. It is used in tight radial spaces where high load capacity and rigidity are required, with shafts that are already hardened and ground to serve as the raceway. It is a common solution in transmissions, pumps, power tools and automation equipment operating in Argentine plants.

The HK series designation is read in blocks: the letters HK identify the design type, a needle roller bearing with a stamped outer ring; the first digits indicate the bore diameter and the following ones the width of the part. In HK4012V2, for example, 40 corresponds to the bore diameter, 12 to the width and the V2 suffix refers to a cage or internal execution variant defined by the manufacturer. With this criterion you can locate the size you need within the series.

These bearings appear in applications where radial space is critical: gearboxes, hydraulic pumps, compressors, electric motors, machine tools, packaging equipment and conveyor drives. In the Argentine market they are found in production line maintenance, food, metallurgical, plastics and automotive industries. Their compact format allows replacing bushings or larger-section bearings when the design requires reducing the outer diameter.

To select correctly, take into account the shaft diameter and its hardness: the needle needs a ground and hardened raceway, with adequate hardness and roughness, because the shaft acts as the inner ring. Also check the radial clearance, lubrication (grease or oil depending on the assembly) and alignment between shaft and housing, since these bearings are sensitive to misalignment. Sealing the assembly protects against contaminants and extends service life.

As for equivalents, each manufacturer uses its own nomenclature for needle roller bearings with an outer ring. If you bring the code from another brand, at MR Accesorios Industriales we cross-reference it with the NTN HK series and tell you the compatible reference. Interchangeability depends on the bore, outer and width dimensions, and on the cage type, so it is best to request a quote with the complete size or with the part in hand.

If you need a needle roller bearing from the HK series, send us the code or the dimensions of your application via WhatsApp. At MR Accesorios Industriales we quote the exact reference and advise you on assembly and lubrication. You can also ask us about other needle roller bearing series and about the mounting accessories you need for your equipment.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.