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Needle Roller Bearings have a high load carrying capacity and can operate at high speeds. They have slim design and are suited where radial space is limited. They are available with or without an inner ring.

Needle roller bearings with inner rings are used if the shaft cannot be used as a raceway.
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Needle Roller Bearings NA 4900 Single Row with Inner Ring

NA 4900 Style Standard Needle Roller Bearings
Needle Roller Bearings NA 4900 Single Row with Inner Ring

NA 4900 Style Standard Needle Roller Bearings
Needle Roller Bearings NA 4900 Single Row with Inner Ring

NA 4900 Style Standard Needle Roller Bearings
Needle Roller Bearings NA 4900 Single Row with Inner Ring

NA 4900 Style Standard Needle Roller Bearings
Needle Roller Bearings NA 4900 Single Row with Inner Ring

NA 4900 Style Standard Needle Roller Bearings
(d) Bore Diameter N/A 10 mm N/A 10 mm N/A 12 mm N/A 12 mm N/A 15 mm
(D) Outside Diameter N/A 22 mm N/A 22 mm N/A 24 mm N/A 24 mm N/A 28 mm
(B) Width N/A 13 mm
(C) Dynamic Load N/A 8800 N N/A 7370 N N/A 9900 N N/A 8090 N N/A 11200 N
(Co) Static Load N/A 10400 N N/A 8150 N N/A 12200 N N/A 9650 N N/A 15300 N
(Grease) Lubrication Speed N/A 17000 r/min N/A 13000 r/min N/A 16000 r/min N/A 12000 r/min N/A 13000 r/min
(Oil) Lubrication Speed N/A 26000 r/min N/A N/A 24000 r/min N/A N/A 19000 r/min
Weight N/A 0.02 g N/A 0.03 g N/A 0.03 g N/A 0.03 g N/A 0.03 g