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
0.5 Inch \| 12.7 Millimeter x 0.688 Inch \| 17.475 Millimeter x 0.438 Inch \| 11.125 Millimeter KOYO JTT-87-OH Needle Non Thrust Roller Bearings	220 mm	460 mm	145 mm	5 mm
0.75 Inch \| 19.05 Millimeter x 1 Inch \| 25.4 Millimeter x 0.75 Inch \| 19.05 Millimeter KOYO JTT-1212-OH Needle Non Thrust Roller Bearings	14000	14137AS	14276D	Imperial
0.354 Inch \| 9 Millimeter x 0.472 Inch \| 12 Millimeter x 0.472 Inch \| 12 Millimeter KOYO JR9X12X12 Needle Non Thrust Roller Bearings	93000	93708	J93129A	Imperial
3.543 Inch \| 90 Millimeter x 3.937 Inch \| 100 Millimeter x 1.417 Inch \| 36 Millimeter KOYO JR90X100X36 Needle Non Thrust Roller Bearings	655	Imperial	1.47	6.0000 in
3.15 Inch \| 80 Millimeter x 3.543 Inch \| 90 Millimeter x 2.126 Inch \| 54 Millimeter KOYO JR80X90X54 Needle Non Thrust Roller Bearings	80 mm	140 mm	26 mm	22 mm
3.15 Inch \| 80 Millimeter x 3.543 Inch \| 90 Millimeter x 1.378 Inch \| 35 Millimeter KOYO JR80X90X35 Needle Non Thrust Roller Bearings	100 mm	150 mm	16 mm	1 mm
0.591 Inch \| 15 Millimeter x 0.787 Inch \| 20 Millimeter x 0.906 Inch \| 23 Millimeter KOYO JR15X20X23 Needle Non Thrust Roller Bearings	180 mm	280 mm	46 mm	2.1 mm
2.756 Inch \| 70 Millimeter x 3.15 Inch \| 80 Millimeter x 2.362 Inch \| 60 Millimeter KOYO JR70X80X60 Needle Non Thrust Roller Bearings	40.000 mm	80.0000 mm	23.00 mm	1.00 mm
0.276 Inch \| 7 Millimeter x 0.394 Inch \| 10 Millimeter x 0.413 Inch \| 10.5 Millimeter KOYO JR7X10X10,5 Needle Non Thrust Roller Bearings	35.000 mm	80.0000 mm	34.90 mm	1.50 mm
2.756 Inch \| 70 Millimeter x 3.15 Inch \| 80 Millimeter x 1.378 Inch \| 35 Millimeter KOYO JR70X80X35 Needle Non Thrust Roller Bearings	440 mm	720 mm	226 mm	6 mm
2.756 Inch \| 70 Millimeter x 3.15 Inch \| 80 Millimeter x 0.984 Inch \| 25 Millimeter KOYO JR70X80X25 Needle Non Thrust Roller Bearings	170 mm	310 mm	110 mm	4 mm
0.669 Inch \| 17 Millimeter x 0.787 Inch \| 20 Millimeter x 0.787 Inch \| 20 Millimeter KOYO JR17X20X20 Needle Non Thrust Roller Bearings	100 mm	180 mm	46 mm	2.1 mm