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
0.375 Inch | 9.525 Millimeter x 0.563 Inch | 14.3 Millimeter x 0.765 Inch | 19.431 Millimeter KOYO IR-612-OH Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0.2
69.85 x 3.25 Inch | 82.55 Millimeter x 50.8 KOYO IR-445232 Needle Non Thrust Roller Bearings Pillow Block 0.0 N/A 34.958
74.613 x 3.5 Inch | 88.9 Millimeter x 50.8 KOYO IR-475632 Needle Non Thrust Roller Bearings Sleeve Bearings 0.0 N/A 0
55.563 x 2.75 Inch | 69.85 Millimeter x 44.45 KOYO IR-354428 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
57.15 x 2.75 Inch | 69.85 Millimeter x 44.45 KOYO IR-364428 Needle Non Thrust Roller Bearings Sleeve Bearings 1.0 N/A 0
50.8 x 2.5 Inch | 63.5 Millimeter x 38.1 KOYO IR-324024 Needle Non Thrust Roller Bearings Thrust Roller Bearings 0.0 N/A 34.199
49.213 x 2.5 Inch | 63.5 Millimeter x 44.45 KOYO IR-314028 Needle Non Thrust Roller Bearings Cam Followers Stud Type 0.0 N/A 17.933
1.875 Inch | 47.625 Millimeter x 2.125 Inch | 53.975 Millimeter x 1.515 Inch | 38.481 Millimeter KOYO IR-3024-OH Needle Non Thrust Roller Bearings Bearings 0.0 N/A 6.78
1.813 Inch | 46.05 Millimeter x 2.063 Inch | 52.4 Millimeter x 1.515 Inch | 38.481 Millimeter KOYO IR-2924 Needle Non Thrust Roller Bearings Single Row Ball Bearing 0.0 N/A 0
42.863 x 2 Inch | 50.8 Millimeter x 25.4 KOYO IR-273216 Needle Non Thrust Roller Bearings Sleeve Bearings 200.0 N/A 0
39.688 x 2 Inch | 50.8 Millimeter x 31.75 KOYO IR-253220 Needle Non Thrust Roller Bearings Bearings 0.0 N/A 0
36.513 x 1.75 Inch | 44.45 Millimeter x 25.4 KOYO IR-232816 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 24.97
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