Needle Non Thrust Roller Bearings
Needle rollers come in several end configurations. Controlled contours have also been developed to reduce roller-end stress concentrations from misalignment or deflection of one or both raceways under load. Controlled contour refinement brings more uniform stress distribution and optimum bearing performance.
The most economical type of needle roller bearing is a full-complement of loose needle rollers assembled directly between a hardened and ground shaft and housing. Generally, hardened end washers provide axial location. This type appears in many applications such as those where a hardened and ground gear bore serves as the outer raceway.
When application requirements are met and assembly is not difficult, a full complement of rollers forms a bearing of small cross section and high load capacity. It is the lowest-cost rolling bearing per pound of capacity, and is of particular advantage where production rates justify automated assembly equipment.
![2.756 Inch | 70 Millimeter x 3.15 Inch | 80 Millimeter x 0.984 Inch | 25 Millimeter KOYO JR70X80X25 Needle Non Thrust Roller Bearings](https://m.mezcalbrothers.com/uploaded_images/d63339-2-756-inch-70-millimeter-x-3-15-inch-80-millimeter-x-0-984-inch-25-millimeter-koyo-jr70x80x25-needle-non-thrust-roller-bearings.jpg)
![0.669 Inch | 17 Millimeter x 0.787 Inch | 20 Millimeter x 0.807 Inch | 20.5 Millimeter KOYO JR17X20X20,5 Needle Non Thrust Roller Bearings](https://m.mezcalbrothers.com/uploaded_images/d63333-0-669-inch-17-millimeter-x-0-787-inch-20-millimeter-x-0-807-inch-20-5-millimeter-koyo-jr17x20x20-5-needle-non-thrust-roller-bearings.jpg)
![0.669 Inch | 17 Millimeter x 0.787 Inch | 20 Millimeter x 1.201 Inch | 30.5 Millimeter KOYO JR17X20X30,5 Needle Non Thrust Roller Bearings](https://m.mezcalbrothers.com/uploaded_images/d63337-0-669-inch-17-millimeter-x-0-787-inch-20-millimeter-x-1-201-inch-30-5-millimeter-koyo-jr17x20x30-5-needle-non-thrust-roller-bearings.jpg)
![0.591 Inch | 15 Millimeter x 0.787 Inch | 20 Millimeter x 1.024 Inch | 26 Millimeter KOYO JR15X20X26 Needle Non Thrust Roller Bearings](https://m.mezcalbrothers.com/uploaded_images/d63334-0-591-inch-15-millimeter-x-0-787-inch-20-millimeter-x-1-024-inch-26-millimeter-koyo-jr15x20x26-needle-non-thrust-roller-bearings.jpg)
![0.591 Inch | 15 Millimeter x 0.787 Inch | 20 Millimeter x 0.63 Inch | 16 Millimeter KOYO JR15X20X16 Needle Non Thrust Roller Bearings](https://m.mezcalbrothers.com/uploaded_images/d63335-0-591-inch-15-millimeter-x-0-787-inch-20-millimeter-x-0-63-inch-16-millimeter-koyo-jr15x20x16-needle-non-thrust-roller-bearings.jpg)
![0.472 Inch | 12 Millimeter x 0.63 Inch | 16 Millimeter x 0.63 Inch | 16 Millimeter KOYO JR12X16X16 Needle Non Thrust Roller Bearings](https://m.mezcalbrothers.com/uploaded_images/d63333-0-472-inch-12-millimeter-x-0-63-inch-16-millimeter-x-0-63-inch-16-millimeter-koyo-jr12x16x16-needle-non-thrust-roller-bearings.jpg)
![0.5 Inch | 12.7 Millimeter x 0.688 Inch | 17.475 Millimeter x 0.875 Inch | 22.225 Millimeter KOYO JTT-814-OH Needle Non Thrust Roller Bearings](https://m.mezcalbrothers.com/uploaded_images/d63332-0-5-inch-12-7-millimeter-x-0-688-inch-17-475-millimeter-x-0-875-inch-22-225-millimeter-koyo-jtt-814-oh-needle-non-thrust-roller-bearings.jpg)