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
0.787 Inch | 20 Millimeter x 0.984 Inch | 25 Millimeter x 1.024 Inch | 26 Millimeter KOYO JR20X25X26 Needle Non Thrust Roller Bearings Precision Ball Bearings 0.0 N/A 2.33
0.787 Inch | 20 Millimeter x 0.984 Inch | 25 Millimeter x 0.787 Inch | 20 Millimeter KOYO JR20X25X20 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 42.867
0.787 Inch | 20 Millimeter x 0.984 Inch | 25 Millimeter x 0.669 Inch | 17 Millimeter KOYO JR20X25X17 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 0.544
0.591 Inch | 15 Millimeter x 0.787 Inch | 20 Millimeter x 0.512 Inch | 13 Millimeter KOYO JR15X20X13 Needle Non Thrust Roller Bearings Pillow Block 0.0 N/A 33.596
0.787 Inch | 20 Millimeter x 0.984 Inch | 25 Millimeter x 0.63 Inch | 16 Millimeter KOYO JR20X25X16 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 2.8
0.591 Inch | 15 Millimeter x 0.709 Inch | 18 Millimeter x 0.65 Inch | 16.5 Millimeter KOYO JR15X18X16,5 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.551 Inch | 14 Millimeter x 0.669 Inch | 17 Millimeter x 0.669 Inch | 17 Millimeter KOYO JR14X17X17 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.472 Inch | 12 Millimeter x 0.63 Inch | 16 Millimeter x 0.512 Inch | 13 Millimeter KOYO JR12X16X13 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 54.2
0.472 Inch | 12 Millimeter x 0.591 Inch | 15 Millimeter x 0.886 Inch | 22.5 Millimeter KOYO JR12X15X22,5 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.472 Inch | 12 Millimeter x 0.591 Inch | 15 Millimeter x 0.65 Inch | 16.5 Millimeter KOYO JR12X15X16,5 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.005
0.394 Inch | 10 Millimeter x 0.551 Inch | 14 Millimeter x 0.512 Inch | 13 Millimeter KOYO JR10X14X13 Needle Non Thrust Roller Bearings Sleeve Bearings 1.0 N/A 0
0.394 Inch | 10 Millimeter x 0.512 Inch | 13 Millimeter x 0.492 Inch | 12.5 Millimeter KOYO JR10X13X12,5 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
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