Needle Roller Bearing Inner Rings

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Inner rings are made from hardened rolling bearing steel and have precision ground or machined raceways. Ideal applications for using inner rings include:

When in order to allow larger axial displacements of the shaft in relation to the housing, needle roller bearings must be combined with wider inner rings.
Where the shaft cannot be used as a raceway (such as for drawn cup needle roller bearings with open ends; drawn cup needle roller bearings with closed end; needle roller and cage assemblies; and needle roller bearings).
When optimal running surfaces are necessary in order to seal lips.

Needle roller bearings increase the capacity of the standard Pitchlign® SJ series from 10% to 40% while maintaining the standard SJ envelope dimensions. The TJ design gives the heavy duty needle roller bearing 37% to 200% greater life over a standard single pocket bearing. These bearings are also available in sealed and unsealed configurations.

Heavy duty needle roller bearings present a wide variety of designs. The TJ and SJ roller bearings can also be matched with an inner ring or run directly on a shaft.  inner rings can be used separately or as an inner race for complimentary SJ or TJ roller bearings. The inner rings range are through hardened and precision ground.

Koyo NRB JR80X90X35 Needle Roller Bearing Inner Rings

49.3 mm 33.4 mm
F212N- 22 Nm

Koyo NRB JR75X85X30 Needle Roller Bearing Inner Rings

Roller Follower Pin 12
7 Days None

Koyo NRB JR28X32X20 Needle Roller Bearing Inner Rings

9 mm 200 °C
11 mm US202G2T20

Koyo NRB JR10X14X20 Needle Roller Bearing Inner Rings

Available 6
[Aluminum Alloy] 201 Flange Type

Koyo NRB JR65X72X25 Needle Roller Bearing Inner Rings

100 °C 2.27 kg
19 mm 22 mm

Koyo NRB JR60X68X35 Needle Roller Bearing Inner Rings

253000 Square flange shape
No J7

Koyo NRB JR6X9X16 Needle Roller Bearing Inner Rings

Metric System Self-aligning roller
Radial 240

Koyo NRB JR30X35X20,5 Needle Roller Bearing Inner Rings

76500 Single Row
9 Days or more Open Type
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