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
0.236 Inch | 6 Millimeter x 0.394 Inch | 10 Millimeter x 0.354 Inch | 9 Millimeter KOYO BK0609B Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.38
2 Inch | 50.8 Millimeter x 2.375 Inch | 60.325 Millimeter x 1.25 Inch | 31.75 Millimeter KOYO B-3220 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
1.875 Inch | 47.625 Millimeter x 2.25 Inch | 57.15 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO B-308 Needle Non Thrust Roller Bearings Single Row Ball Bearing 0.0 N/A 0.061
2.75 Inch | 69.85 Millimeter x 3.125 Inch | 79.375 Millimeter x 1.25 Inch | 31.75 Millimeter KOYO B-4420-D Needle Non Thrust Roller Bearings Mounted Units & Inserts 0.0 N/A 0.708
0.688 Inch | 17.475 Millimeter x 0.938 Inch | 23.825 Millimeter x 0.75 Inch | 19.05 Millimeter KOYO BH-1112 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 4.2
1.5 Inch | 38.1 Millimeter x 1.875 Inch | 47.625 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO B-248 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 2.41
0.813 Inch | 20.65 Millimeter x 1.063 Inch | 27 Millimeter x 1 Inch | 25.4 Millimeter KOYO B-1316 Needle Non Thrust Roller Bearings Tapered Roller Bearings Assembly 0.0 N/A 1.23
0.591 Inch | 15 Millimeter x 0.827 Inch | 21 Millimeter x 0.551 Inch | 14 Millimeter INA BK1514-RS Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
0.157 Inch | 4 Millimeter x 0.315 Inch | 8 Millimeter x 0.315 Inch | 8 Millimeter INA BK0408B Needle Non Thrust Roller Bearings Tapered Roller Bearings 2.0 N/A 0.335
2 Inch | 50.8 Millimeter x 2.375 Inch | 60.325 Millimeter x 0.75 Inch | 19.05 Millimeter KOYO WJ-323812 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.001
1.75 Inch | 44.45 Millimeter x 2.125 Inch | 53.975 Millimeter x 1.5 Inch | 38.1 Millimeter KOYO WJ-283424 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
1.5 Inch | 38.1 Millimeter x 1.875 Inch | 47.625 Millimeter x 1.5 Inch | 38.1 Millimeter KOYO WJ-243024 Needle Non Thrust Roller Bearings Single Row Ball Bearing 0.0 N/A 0
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