Needle Non Thrust Roller Bearings
Needle roller bearings have relatively small diameter cylindrical rolling elements whose length is much larger than their diameter. Compared with other types of rolling bearings, needle roller bearings have a small cross-sectional height and significant load-bearing capacity and rigidity relative to their volume. Also, because the inertial forces acting on them is limited, they are an ideal choice for applications with oscillating motion. Needle roller bearings also work well in compact and lightweight machine designs and they serve as a ready replacement for sliding bearings.
A needle roller and cage assembly includes needle rollers and a cage that guides and retains the rollers. ¡These assemblies use both the shaft and housing as raceway surfaces. Consequently, the cross-sectional thickness of the assembly is small, roughly equivalent to the diameter of the needle rollers. ¡Because this bearing type has no inner or outer rings, the installation is much easier. ¡These assemblies are available in both singlerow and double-row configurations. ¡As long as the tolerance limits of the shaft and housing are satisfied, the bearing radial internal clearance can be adjusted.
![0.551 Inch | 14 Millimeter x 0.866 Inch | 22 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK14/16A Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61776-0-551-inch-14-millimeter-x-0-866-inch-22-millimeter-x-0-63-inch-16-millimeter-koyo-nk14-16a-needle-non-thrust-roller-bearings.jpg)
![0.472 Inch | 12 Millimeter x 0.748 Inch | 19 Millimeter x 0.472 Inch | 12 Millimeter KOYO NK12/12A Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61784-0-472-inch-12-millimeter-x-0-748-inch-19-millimeter-x-0-472-inch-12-millimeter-koyo-nk12-12a-needle-non-thrust-roller-bearings.jpg)
![1.181 Inch | 30 Millimeter x 1.85 Inch | 47 Millimeter x 1.181 Inch | 30 Millimeter KOYO NA6906A Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61779-1-181-inch-30-millimeter-x-1-85-inch-47-millimeter-x-1-181-inch-30-millimeter-koyo-na6906a-needle-non-thrust-roller-bearings.jpg)
![1.772 Inch | 45 Millimeter x 2.677 Inch | 68 Millimeter x 1.575 Inch | 40 Millimeter KOYO NA6909A Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61785-1-772-inch-45-millimeter-x-2-677-inch-68-millimeter-x-1-575-inch-40-millimeter-koyo-na6909a-needle-non-thrust-roller-bearings.jpg)
![0.472 Inch | 12 Millimeter x 0.945 Inch | 24 Millimeter x 0.866 Inch | 22 Millimeter KOYO NA6901A Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61785-0-472-inch-12-millimeter-x-0-945-inch-24-millimeter-x-0-866-inch-22-millimeter-koyo-na6901a-needle-non-thrust-roller-bearings.jpg)
![2.165 Inch | 55 Millimeter x 3.15 Inch | 80 Millimeter x 1.772 Inch | 45 Millimeter KOYO NA6911A Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61777-2-165-inch-55-millimeter-x-3-15-inch-80-millimeter-x-1-772-inch-45-millimeter-koyo-na6911a-needle-non-thrust-roller-bearings.jpg)
![0.669 Inch | 17 Millimeter x 1.181 Inch | 30 Millimeter x 0.906 Inch | 23 Millimeter KOYO NA6903A Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61782-0-669-inch-17-millimeter-x-1-181-inch-30-millimeter-x-0-906-inch-23-millimeter-koyo-na6903a-needle-non-thrust-roller-bearings.jpg)
![1.575 Inch | 40 Millimeter x 2.441 Inch | 62 Millimeter x 0.906 Inch | 23 Millimeter KOYO NA4908A.2RS Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61778-1-575-inch-40-millimeter-x-2-441-inch-62-millimeter-x-0-906-inch-23-millimeter-koyo-na4908a-2rs-needle-non-thrust-roller-bearings.jpg)
![1.378 Inch | 35 Millimeter x 2.165 Inch | 55 Millimeter x 0.827 Inch | 21 Millimeter KOYO NA4907A.2RS Needle Non Thrust Roller Bearings](https://m.riadzina-marrakech.com/uploaded_images/d61777-1-378-inch-35-millimeter-x-2-165-inch-55-millimeter-x-0-827-inch-21-millimeter-koyo-na4907a-2rs-needle-non-thrust-roller-bearings.jpg)