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
0.236 Inch | 6 Millimeter x 0.472 Inch | 12 Millimeter x 0.394 Inch | 10 Millimeter KOYO NK6/10TN Needle Non Thrust Roller Bearings Sleeve Bearings 52.0 N/A 0
2.165 Inch | 55 Millimeter x 2.677 Inch | 68 Millimeter x 0.984 Inch | 25 Millimeter KOYO NK55/25A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
1.969 Inch | 50 Millimeter x 2.441 Inch | 62 Millimeter x 1.378 Inch | 35 Millimeter KOYO NK50/35A Needle Non Thrust Roller Bearings Sleeve Bearings 1.0 N/A 0
1.772 Inch | 45 Millimeter x 2.165 Inch | 55 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK45/20A Needle Non Thrust Roller Bearings Sleeve Bearings 5.0 N/A 0
1.772 Inch | 45 Millimeter x 2.165 Inch | 55 Millimeter x 1.181 Inch | 30 Millimeter KOYO NK45/30A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
1.457 Inch | 37 Millimeter x 1.85 Inch | 47 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK37/20A Needle Non Thrust Roller Bearings Sleeve Bearings 2.0 N/A 0
1.378 Inch | 35 Millimeter x 1.772 Inch | 45 Millimeter x 1.181 Inch | 30 Millimeter KOYO NK35/30A Needle Non Thrust Roller Bearings Sleeve Bearings 2.0 N/A 0
1.654 Inch | 42 Millimeter x 2.047 Inch | 52 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK42/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
1.654 Inch | 42 Millimeter x 2.047 Inch | 52 Millimeter x 1.181 Inch | 30 Millimeter KOYO NK42/30A Needle Non Thrust Roller Bearings Sleeve Bearings 108.0 N/A 0
1.575 Inch | 40 Millimeter x 1.969 Inch | 50 Millimeter x 1.181 Inch | 30 Millimeter KOYO NK40/30A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.005
1.575 Inch | 40 Millimeter x 1.969 Inch | 50 Millimeter x 0.787 Inch | 20 Millimeter KOYO NK40/20A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
1.181 Inch | 30 Millimeter x 1.575 Inch | 40 Millimeter x 1.181 Inch | 30 Millimeter KOYO NK30/30A Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
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