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
1.26 Inch | 32 Millimeter x 1.654 Inch | 42 Millimeter x 1.181 Inch | 30 Millimeter KOYO NK32/30A Needle Non Thrust Roller Bearings Sleeve Bearings 9.0 N/A 0
1.181 Inch | 30 Millimeter x 1.575 Inch | 40 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK30/20A Needle Non Thrust Roller Bearings Pillow Block 0.0 N/A 20.43
1.378 Inch | 35 Millimeter x 1.772 Inch | 45 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK35/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.064
1.26 Inch | 32 Millimeter x 1.654 Inch | 42 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK32/20A Needle Non Thrust Roller Bearings Single Row Ball Bearing 0.0 N/A 0.016
1.102 Inch | 28 Millimeter x 1.457 Inch | 37 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK28/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 28.147
1.102 Inch | 28 Millimeter x 1.457 Inch | 37 Millimeter x 1.181 Inch | 30 Millimeter KOYO NK28/30ASR1 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.004
1.142 Inch | 29 Millimeter x 1.496 Inch | 38 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK29/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 31.5
1.024 Inch | 26 Millimeter x 1.339 Inch | 34 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK26/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.945 Inch | 24 Millimeter x 1.26 Inch | 32 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK24/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.44
0.945 Inch | 24 Millimeter x 1.26 Inch | 32 Millimeter x 0.63 Inch | 16 Millimeter KOYO NK24/16A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.984 Inch | 25 Millimeter x 1.299 Inch | 33 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK25/20A Needle Non Thrust Roller Bearings Sleeve Bearings 2.0 N/A 0
0.866 Inch | 22 Millimeter x 1.181 Inch | 30 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK22/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.34
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