Needle Non Thrust Roller Bearings

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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.

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.

Bearing Number	Bore Dia	Outer DIa	Width	Size
2.165 Inch \| 55 Millimeter x 2.559 Inch \| 65 Millimeter x 1.181 Inch \| 30 Millimeter KOYO JR55X65X30 Needle Non Thrust Roller Bearings	200 mm	340 mm	140 mm	3 mm
1.772 Inch \| 45 Millimeter x 1.969 Inch \| 50 Millimeter x 1.378 Inch \| 35 Millimeter KOYO JR45X50X35 Needle Non Thrust Roller Bearings	200 mm	340 mm	112 mm	3 mm
1.969 Inch \| 50 Millimeter x 2.362 Inch \| 60 Millimeter x 0.984 Inch \| 25 Millimeter KOYO JR50X60X25 Needle Non Thrust Roller Bearings	180 mm	320 mm	112 mm	4 mm
2.165 Inch \| 55 Millimeter x 2.362 Inch \| 60 Millimeter x 1.378 Inch \| 35 Millimeter KOYO JR55X60X35 Needle Non Thrust Roller Bearings	Mounted Bearing	22226	4-7/16 in	Imperial
1.969 Inch \| 50 Millimeter x 2.165 Inch \| 55 Millimeter x 0.787 Inch \| 20 Millimeter KOYO JR50X55X20 Needle Non Thrust Roller Bearings	140 mm	210 mm	69 mm	2 mm
1.969 Inch \| 50 Millimeter x 2.165 Inch \| 55 Millimeter x 0.984 Inch \| 25 Millimeter KOYO JR50X55X25 Needle Non Thrust Roller Bearings	150 mm	270 mm	73 mm	3 mm
1.969 Inch \| 50 Millimeter x 2.165 Inch \| 55 Millimeter x 1.378 Inch \| 35 Millimeter KOYO JR50X55X35 Needle Non Thrust Roller Bearings	160 mm	340 mm	114 mm	4 mm
1.969 Inch \| 50 Millimeter x 2.283 Inch \| 58 Millimeter x 1.575 Inch \| 40 Millimeter KOYO JR50X58X40 Needle Non Thrust Roller Bearings	40 mm	47.6 mm	104.8 mm	88.9 mm
1.772 Inch \| 45 Millimeter x 2.165 Inch \| 55 Millimeter x 0.787 Inch \| 20 Millimeter KOYO JR45X55X20 Needle Non Thrust Roller Bearings	190 mm	340 mm	92 mm	4 mm
1.772 Inch \| 45 Millimeter x 1.969 Inch \| 50 Millimeter x 1.004 Inch \| 25.5 Millimeter KOYO JR45X50X25,5 Needle Non Thrust Roller Bearings	190 mm	340 mm	120 mm	4 mm
1.575 Inch \| 40 Millimeter x 1.89 Inch \| 48 Millimeter x 1.575 Inch \| 40 Millimeter KOYO JR40X48X40 Needle Non Thrust Roller Bearings	200 mm	310 mm	109 mm	2.1 mm
1.378 Inch \| 35 Millimeter x 1.575 Inch \| 40 Millimeter x 0.669 Inch \| 17 Millimeter KOYO JR35X40X17 Needle Non Thrust Roller Bearings	670 mm	1090 mm	336 mm	7.5 mm