NTN RNAO-20X28X13 needle bearing without inner ring

Product detailed description

NTN RNAO-20X28X13 is a needle roller bearing without an inner ring, designed for applications requiring high precision and reliability. This bearing is manufactured by the Japanese manufacturer NTN, known for its quality and innovative solutions in the field of bearings.

The bearing has an outer diameter of 28 mm, an inner diameter of 20 mm and a width of 13 mm. Its design includes a pressed steel cage, which ensures optimal load distribution and reduces friction between the needles. The bearing is without seals, which means that it is not protected from external dirt and moisture, and is therefore suitable for applications where a clean environment is ensured.

The operating temperature range of the bearing is from -20 °C to +120 °C, which allows it to be used in various industrial conditions. The bearing has normal radial clearance and meets the accuracy class P0/PN, which corresponds to ABEC 1, which is the basic accuracy level for common applications.

Due to the absence of an inner ring, the bearing is designed for applications where the inner surface of the shaft is sufficiently hardened and ground to serve as a raceway. This solution allows to reduce the overall dimensions and weight of the assembly, with the total weight of the bearing being only 0.03 kg.

NTN RNAO-20X28X13 is ideal for applications where high load capacity is required in a minimum space, such as gearboxes, compressors and various industrial machines. Its robust design and reliability make it suitable for use in harsh conditions where long-term service life is required.