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Action Bearing Company
201 Brighton Avenue
Boston, MA 02134
Phone: (800) 225-4587 • Fax: (800) 252-1996
Email: info@actionbearing.com
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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.
Needle Roller Bearings NA 4900 Single Row with Inner Ring
Items Needle Roller Bearings NA 4900 Single Row with Inner Ring
NA4900
NA 4900 Style Standard Needle Roller Bearings 		Needle Roller Bearings NA 4900 Single Row with Inner Ring
NA4900 2RS
NA 4900 Style Standard Needle Roller Bearings 		Needle Roller Bearings NA 4900 Single Row with Inner Ring
NA4901
NA 4900 Style Standard Needle Roller Bearings 		Needle Roller Bearings NA 4900 Single Row with Inner Ring
NA4901 2RS
NA 4900 Style Standard Needle Roller Bearings 		Needle Roller Bearings NA 4900 Single Row with Inner Ring
NA4902
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