Needle Non Thrust Roller Bearings

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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.

Bearing Number Bore Dia Outer DIa Width Size
2.5 Inch | 63.5 Millimeter x 2.882 Inch | 73.2 Millimeter x 1.125 Inch | 28.575 Millimeter KOYO NB-4018 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
2.5 Inch | 63.5 Millimeter x 2.882 Inch | 73.2 Millimeter x 0.75 Inch | 19.05 Millimeter KOYO NB-4012 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.188 Inch | 4.775 Millimeter x 0.344 Inch | 8.738 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO NB-38 Needle Non Thrust Roller Bearings Tapered Roller Bearings 0.0 N/A 31171529
2.953 Inch | 75 Millimeter x 4.134 Inch | 105 Millimeter x 2.126 Inch | 54 Millimeter KOYO NA6915A.R200.250.S3 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
2.756 Inch | 70 Millimeter x 3.937 Inch | 100 Millimeter x 2.126 Inch | 54 Millimeter KOYO NA6914A Needle Non Thrust Roller Bearings Mounted Units & Inserts 0.0 N/A 0.935
2.559 Inch | 65 Millimeter x 3.543 Inch | 90 Millimeter x 1.772 Inch | 45 Millimeter KOYO NA6913A Needle Non Thrust Roller Bearings Mounted Units & Inserts 0.0 N/A 1.407
1.575 Inch | 40 Millimeter x 2.441 Inch | 62 Millimeter x 1.575 Inch | 40 Millimeter KOYO NA6908A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.01
2.362 Inch | 60 Millimeter x 3.346 Inch | 85 Millimeter x 1.772 Inch | 45 Millimeter KOYO NA6912A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 13.821
1.378 Inch | 35 Millimeter x 2.165 Inch | 55 Millimeter x 1.417 Inch | 36 Millimeter KOYO NA6907A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
1.969 Inch | 50 Millimeter x 2.835 Inch | 72 Millimeter x 1.575 Inch | 40 Millimeter KOYO NA6910A.R200.250.S3 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 0.14
1.969 Inch | 50 Millimeter x 2.835 Inch | 72 Millimeter x 1.575 Inch | 40 Millimeter KOYO NA6910A Needle Non Thrust Roller Bearings Roller Bearings 0.0 N/A 25.85
0.591 Inch | 15 Millimeter x 1.102 Inch | 28 Millimeter x 0.906 Inch | 23 Millimeter KOYO NA6902A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
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