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
0.25 Inch | 6.35 Millimeter x 0.438 Inch | 11.125 Millimeter x 0.438 Inch | 11.125 Millimeter KOYO J-47 PDL125 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.03
0.375 Inch | 9.525 Millimeter x 0.563 Inch | 14.3 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO J-68-OH Needle Non Thrust Roller Bearings Pillow Block 0.0 N/A 8.63
0.25 Inch | 6.35 Millimeter x 0.438 Inch | 11.125 Millimeter x 0.312 Inch | 7.925 Millimeter KOYO J-45 PDL125 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 34.95
2.75 Inch | 69.85 Millimeter x 3.125 Inch | 79.375 Millimeter x 0.75 Inch | 19.05 Millimeter KOYO J-4412-OH Needle Non Thrust Roller Bearings Precision Ball Bearings 0.0 N/A 0.018
0.25 Inch | 6.35 Millimeter x 0.438 Inch | 11.125 Millimeter x 0.312 Inch | 7.925 Millimeter KOYO J-45;PDL051 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.047
2.25 Inch | 57.15 Millimeter x 2.625 Inch | 66.675 Millimeter x 1 Inch | 25.4 Millimeter KOYO J-3616;PDL052 Needle Non Thrust Roller Bearings Mounted Units & Inserts 0.0 N/A 0.9
1.25 Inch | 31.75 Millimeter x 1.5 Inch | 38.1 Millimeter x 0.75 Inch | 19.05 Millimeter KOYO J-2012 PDL125 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 42.676
0.75 Inch | 19.05 Millimeter x 1 Inch | 25.4 Millimeter x 0.625 Inch | 15.875 Millimeter KOYO J-1210;PDL125 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.75 Inch | 19.05 Millimeter x 1 Inch | 25.4 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO J-128-OH Needle Non Thrust Roller Bearings Precision Ball Bearings 0.0 N/A 0.75
0.625 Inch | 15.875 Millimeter x 0.813 Inch | 20.65 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO J-108 PDL125 Needle Non Thrust Roller Bearings Sleeve Bearings 2.0 N/A 0
0.438 Inch | 11.125 Millimeter x 0.625 Inch | 15.875 Millimeter x 0.786 Inch | 19.964 Millimeter KOYO IRA-7 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 39.28
1.25 Inch | 31.75 Millimeter x 1.5 Inch | 38.1 Millimeter x 1.286 Inch | 32.664 Millimeter KOYO IRA-20-OH Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.2
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