Needle roller bearing NTN HMK4040ZWD

NTN HMK4040ZWD is a needle roller bearing reference, within Bearings. Request a quote for HMK4040ZWD via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN HMK series needle roller bearing is a caged radial needle roller bearing designed to withstand high radial loads in very tight spaces. It is used in applications where the available outer diameter is limited and high load capacity is required, such as transmissions, pumps, compressors and textile machinery. MR Accesorios Industriales sells the HMK series in Buenos Aires, Argentina, with more than 80 years of experience in bearings and power transmission.

The HMK series designation reads as a size code: the letters HMK identify the caged needle roller bearing series, and the numbers that follow indicate dimensions in millimeters. For example, HMK3845ZWD corresponds to a bearing with a 38 mm bore and a 45 mm outer diameter; HMK4040ZWD, 40 mm bore and 40 mm outer diameter; and HMK4540ZWD, 45 mm bore and 40 mm outer diameter. The ZWD suffix indicates a configuration with a double sealing lip, which protects against the ingress of contaminants and retains lubrication.

These bearings are used in Argentine industries such as automotive, metallurgical, food and textile. They are found in gearboxes, water and oil pumps, compressors, machine tools and transmission equipment. Their compact design makes it possible to replace ball bearings in spaces where greater radial capacity is needed. In the local market, they are a common solution for heavy machinery maintenance and continuous production equipment.

To correctly select an HMK bearing, take into account the shaft diameter, the available outer diameter and the width. Check that the ZWD seal is compatible with the working environment: in the presence of dust or moisture, the double lip helps extend service life. Mounting requires a suitable press or puller, avoiding direct blows on the needles. Alignment between shaft and housing must be precise to avoid parasitic axial loads. Lubrication can be grease or oil, depending on speed and operating temperature.

NTN HMK series needle roller bearings can be interchanged with equivalent products from other brands that follow the same dimensional nomenclature. When looking for a replacement, always compare the bore, outer diameter and width dimensions, as well as the seal type. If you have another brand's part number or an unidentified part, at MR Accesorios Industriales we can tell you the compatible equivalent. Interchangeability between manufacturers is possible when the dimensions and required load capacity match.

To request a quote for your NTN HMK series needle roller bearing, write to us on WhatsApp with the complete part number or the dimensions you need. At MR Accesorios Industriales we reply promptly with the quote and available alternatives. We can also advise you on mounting and the right lubrication for your application.

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