Needle roller bearing NTN HK3012CT

NTN HK3012CT is a needle roller bearing reference, within Bearings. Request a quote for HK3012CT 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 needle roller bearing with a drawn steel outer ring and steel cage, housing small-diameter cylindrical needles. It is used when radial space is limited and high load capacity is required. It has no inner ring: the inner raceway is provided directly by the shaft, which must be hardened and ground. It is a compact solution for power transmission, machine tools and motion equipment.

The HK series designation reads as a size code: the letters identify the design type and the numbers that follow indicate the bore diameter and the width. For example, HK2816CT corresponds to a bearing with a 28 mm bore diameter and 16 mm width; HK3012CT has a 30 mm bore and 12 mm width; HK3516CT, a 35 mm bore and 16 mm width; and HK4016CT, a 40 mm bore and 16 mm width. The CT suffix defines design characteristics specific to this variant. To select, always start from the shaft diameter and the available width.

These bearings are used in industries in Argentina such as metalworking, food, textile and logistics. They are found in pulleys, rollers, pumps, compressors, conveyor belts and machine tools. Their low profile allows them to be mounted in spaces where a deep groove ball bearing will not fit. They are also used in packaging equipment, elevators and belt drives. Because they have no inner ring, the shaft acts as the raceway, which simplifies the design and reduces the weight of the assembly.

For correct mounting, verify that the shaft has adequate hardness and roughness, since the needle rolls directly on it. The alignment between shaft and housing must be precise: misalignment accelerates wear. Lubrication can be grease or oil, depending on the speed and working temperature. Sealing the assembly is key to retaining the lubricant and excluding contaminants. If the environment has dust or moisture, add radial shaft seals or covers. The steel cage guides the needles and allows high speeds with low friction.

As for equivalents, HK series needle roller bearings from different manufacturers share standardized dimensions, so they can be interchanged between brands if the bore diameter, outer diameter and width match. The same applies to equivalent series in other catalogs. To replace a worn bearing, note the complete code on the outer ring or measure the shaft and the housing. With that data, at MR Accesorios Industriales we quote the exact reference or the compatible alternative.

If you need advice on the selection, mounting or lubrication of needle roller bearings, write to us on WhatsApp. At MR Accesorios Industriales we reply promptly with a quote for the code or size you indicate. We can also help you identify the part if you send us the shaft and housing dimensions. We have more than 80 years of experience in the field, since 1945, supporting Argentine industry.

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