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
2.283 Inch \| 58 Millimeter x 2.835 Inch \| 72 Millimeter x 1.575 Inch \| 40 Millimeter KOYO RNA6910A Needle Non Thrust Roller Bearings	70.000 mm	150.0000 mm	66.70 mm	2.00 mm
1.89 Inch \| 48 Millimeter x 2.441 Inch \| 62 Millimeter x 0.866 Inch \| 22 Millimeter KOYO RNA4908A.2RS Needle Non Thrust Roller Bearings	750 mm	1000 mm	360 mm	250 mm
2.283 Inch \| 58 Millimeter x 2.835 Inch \| 72 Millimeter x 0.866 Inch \| 22 Millimeter KOYO RNA4910A.2RS Needle Non Thrust Roller Bearings	630 mm	920 mm	310 mm	212 mm
1.181 Inch \| 30 Millimeter x 1.654 Inch \| 42 Millimeter x 0.669 Inch \| 17 Millimeter KOYO RNA4905ARS Needle Non Thrust Roller Bearings	110 mm	200 mm	53 mm	2.1 mm
0.984 Inch \| 25 Millimeter x 1.181 Inch \| 30 Millimeter x 0.669 Inch \| 17 Millimeter KOYO JR25X30X17 Needle Non Thrust Roller Bearings	800 mm	1150 mm	490 mm	325 mm
2.047 Inch \| 52 Millimeter x 2.677 Inch \| 68 Millimeter x 0.866 Inch \| 22 Millimeter KOYO RNA4909A.2RS Needle Non Thrust Roller Bearings	KOYO	RNA4909A.2RS	1 pcs	Negotiable
0.984 Inch \| 25 Millimeter x 1.181 Inch \| 30 Millimeter x 0.807 Inch \| 20.5 Millimeter KOYO JR25X30X20,5 Needle Non Thrust Roller Bearings	320 mm	580 mm	208 mm	5 mm
1.378 Inch \| 35 Millimeter x 1.85 Inch \| 47 Millimeter x 0.669 Inch \| 17 Millimeter KOYO RNA4906A.2RS Needle Non Thrust Roller Bearings	75.000 mm	160.0000 mm	71.40 mm	2.00 mm
0.866 Inch \| 22 Millimeter x 1.181 Inch \| 30 Millimeter x 0.512 Inch \| 13 Millimeter KOYO RNA4903A.2RS Needle Non Thrust Roller Bearings	850 mm	1180 mm	331 mm	206 mm
0.866 Inch \| 22 Millimeter x 1.102 Inch \| 28 Millimeter x 1.181 Inch \| 30 Millimeter KOYO JR22X28X30 Needle Non Thrust Roller Bearings	35.000 mm	72.0000 mm	27.00 mm	1.00 mm
0.787 Inch \| 20 Millimeter x 0.945 Inch \| 24 Millimeter x 0.787 Inch \| 20 Millimeter KOYO JR20X24X20 Needle Non Thrust Roller Bearings	1 3/16 in	1.6250 in	4.3750 in	2.7500 in
0.787 Inch \| 20 Millimeter x 0.984 Inch \| 25 Millimeter x 0.807 Inch \| 20.5 Millimeter KOYO JR20X25X20,5 Needle Non Thrust Roller Bearings	300.000 mm	380.0000 mm	38.00 mm	2.00 mm