Needle Non Thrust Roller Bearings

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Needle roller bearings utilize small, cylindrical rollers, referred to as needle rollers, to reduce friction between moving components. The needle rollers are the load-carrying components of the needle roller bearing. They are located between two races, between a single race and a shaft, or between a shaft and a housing, depending on the design of the bearing. 

The rolling elements of a needle roller bearing have a large load-bearing surface, but a small diameter. Specifically, Mark's Standard Handbook for Mechanical Engineers defines needle roller bearings as, "a roller bearing with rollers whose length[s] are at least four times their diameter." The surface area of the rollers and the high number of rolling, load-bearing elements provide needle roller bearings with exceptional load capacity and stiffness.

Most radial needle roller bearings are designed to accommodate axial-oriented forces more than 5% of the radial load. Those which are used in radial applications have rollers that are parallel to the shaft. Thrust bearings, those meant for axial loads, contain rollers with axes that are perpendicular to the shaft and from which they extend radially.

Bearing Number Bore Dia Outer DIa Width Size
1 Inch | 25.4 Millimeter x 1.313 Inch | 33.35 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO BH-168 Needle Non Thrust Roller Bearings Mounted Cartridge Units 0.0 N/A 4.54
0.984 Inch | 25 Millimeter x 1.654 Inch | 42 Millimeter x 1.181 Inch | 30 Millimeter KOYO NA6905A Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 15.89
1 Inch | 25.4 Millimeter x 1.25 Inch | 31.75 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO B-168 PDL449 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 24.97
1 Inch | 25.4 Millimeter x 1.25 Inch | 31.75 Millimeter x 0.5 Inch | 12.7 Millimeter KOYO B-168-OH Needle Non Thrust Roller Bearings Take Up Units 0.0 N/A 17.252
1.125 Inch | 28.575 Millimeter x 1.375 Inch | 34.925 Millimeter x 0.75 Inch | 19.05 Millimeter KOYO B-1812 PDL125 Needle Non Thrust Roller Bearings Pillow Block 0.0 N/A 20.521
0.875 Inch | 22.225 Millimeter x 1.125 Inch | 28.575 Millimeter x 0.75 Inch | 19.05 Millimeter KOYO B-1412-OH Needle Non Thrust Roller Bearings Pillow Block 0.0 N/A 6.356
0.938 Inch | 23.825 Millimeter x 1.188 Inch | 30.175 Millimeter x 1 Inch | 25.4 Millimeter KOYO B-1516 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 101.696
0.938 Inch | 23.825 Millimeter x 1.188 Inch | 30.175 Millimeter x 1 Inch | 25.4 Millimeter KOYO B-1516-OH Needle Non Thrust Roller Bearings Take Up Units 0.0 N/A 17.252
0.875 Inch | 22.225 Millimeter x 1.125 Inch | 28.575 Millimeter x 1.125 Inch | 28.575 Millimeter KOYO B-1418 PDL125 Needle Non Thrust Roller Bearings Pillow Block 0.0 N/A 8.626
0.875 Inch | 22.225 Millimeter x 1.125 Inch | 28.575 Millimeter x 1 Inch | 25.4 Millimeter KOYO B-1416 PDL051 Needle Non Thrust Roller Bearings Pillow Block Bearings 0.0 N/A 26.63
0.813 Inch | 20.65 Millimeter x 1.063 Inch | 27 Millimeter x 0.875 Inch | 22.225 Millimeter KOYO B-1314 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 12.712
0.813 Inch | 20.65 Millimeter x 1.063 Inch | 27 Millimeter x 0.375 Inch | 9.525 Millimeter KOYO B-136 Needle Non Thrust Roller Bearings Flange Block 0.0 N/A 46.308
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