SKF NK 28/20 needle bearing without inner ring

Product detailed description

SKF NK 28/20 is a needle roller bearing without an inner ring, designed for applications requiring high precision and reliability. This bearing is made of high-quality steel, which ensures its long life and resistance to wear. Thanks to its design without an inner ring, it is ideal for applications where internal space is limited and where it is possible to use the shaft as a raceway.

The dimensions of the bearing are: inner diameter (d) 28 mm, outer diameter (D) 37 mm and width (B) 20 mm. The bearing is single-row, which means that it contains one row of needles, which are placed in a pressed steel cage. This cage ensures an even distribution of the needles and minimizes friction, contributing to the smooth running of the bearing.

The SKF NK 28/20 is designed for operation in a temperature range from -20 °C to +100 °C, making it suitable for a wide range of industrial applications. The bearing is unsealed, which means it is uncovered and requires regular maintenance and lubrication. For this purpose, it is equipped with a circumferential groove with lubrication holes that allow for easy and effective lubrication.

The running accuracy of the bearing is in class P0/PN, which corresponds to normal accuracy according to the ABEC 1 standard. The internal radial clearance is also normal, which ensures optimal operation under standard conditions. The total weight of the bearing is 0.052 kg, which contributes to its easy handling and installation.

The SKF NK 28/20 is an ideal choice for applications where high load capacity and compact dimensions are required, such as gearboxes, compressors and various mechanical equipment. Its robust construction and use of quality materials guarantee reliable and long-lasting performance.