Needle roller bearing NSK RNAF 709030

NSK RNAF 709030 is a reference of needle roller bearing, within Bearings. Request a quote for RNAF 709030 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NSK RNAF series needle roller bearing is a radial bearing without an inner ring: the needles run directly on the hardened and ground shaft. Its very reduced section design allows it to be mounted in spaces where a ball bearing does not fit, with high radial load capacity and good rigidity. It is used in machine tools, transmission equipment, pumps, compressors and lifting mechanisms, among other industrial applications.

The RNAF series designation is read by dimensions: the digits that follow the letters indicate the bore diameter, the outer diameter and the width, in millimeters. For example, RNAF 101710 corresponds to a 10 mm bore, 17 mm outer diameter and 10 mm width; RNAF 162812, to a 16 mm bore, 28 mm outer diameter and 12 mm width. Any suffixes that may appear after the designation add sealing, tolerance or lubrication characteristics as applicable.

In Argentine industry, these bearings are found in machine tool spindles, gear reducer boxes, gear pumps, screw compressors, packaging equipment and lifting mechanisms. They are also used in applications where radial space is critical, such as electric motor transmissions, textile machines and material handling equipment. Their ability to withstand high radial loads with a low profile makes them common in production line maintenance.

To select an RNAF needle roller bearing, take into account the shaft diameter and hardness: the raceway must be hardened and ground, with the appropriate hardness and roughness. Check the alignment between the shaft and the housing, because the needles are sensitive to misalignment. Lubrication can be grease or oil; in applications with contamination, evaluate additional sealing. Mounting is done with suitable tools, without striking directly on the needles.

Needle roller bearings are identified by their designation and dimensions, and different brands may offer equivalent products. If you have the part number from another brand or an unidentified part, we can tell you the compatible alternative. Interchangeability depends on the dimensions, load capacity and type of sealing, so it is advisable to verify this data before replacing.

If you need an NSK RNAF series needle roller bearing, write to us on WhatsApp with the part number or the dimensions. At MR Accesorios Industriales we will quote it for you promptly. We can also advise you if you are looking for a variant with sealing, higher capacity or special dimensions.