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
0.866 Inch | 22 Millimeter x 1.181 Inch | 30 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK22/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.787 Inch | 20 Millimeter x 1.102 Inch | 28 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK20/20A Needle Non Thrust Roller Bearings Sleeve Bearings 8.0 N/A 0
0.591 Inch | 15 Millimeter x 0.906 Inch | 23 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK15/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.787 Inch | 20 Millimeter x 1.102 Inch | 28 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK20/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.005
0.551 Inch | 14 Millimeter x 0.866 Inch | 22 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK14/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.004
0.63 Inch | 16 Millimeter x 0.945 Inch | 24 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK16/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.001
0.709 Inch | 18 Millimeter x 1.024 Inch | 26 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK18/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 7
0.748 Inch | 19 Millimeter x 1.063 Inch | 27 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK19/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 3.5
0.709 Inch | 18 Millimeter x 1.024 Inch | 26 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK18/20A Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 3.719
0.669 Inch | 17 Millimeter x 0.984 Inch | 25 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK17/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.01
0.669 Inch | 17 Millimeter x 0.984 Inch | 25 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK17/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 4.35
0.591 Inch | 15 Millimeter x 0.906 Inch | 23 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK15/20A Needle Non Thrust Roller Bearings Mounted Units & Inserts 0.0 N/A 41.889
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