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Emerson Bearing Company
201 Brighton Avenue
Boston, MA 02134
Phone: (800) 225-4587 • Fax: (800) 252-1996
Email: info@emersonbearing.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 and seals.

Needle roller bearings without inner ring offer technically the best bearing arrangement solution if the shaft raceway is hardened and ground. This allows for the use of larger shafts and design alternatives.
Needle Roller Bearings RNA 4900 Series Single Row without Inner Ring
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Item #

(Fw) Diameter Under Rollers

(D) Outside Diameter

(C) Width

(C) Dynamic Load

(Co) Static Load

(Grease) Lubrication Speed

(Oil) Lubrication Speed

Weight

RNA 4900 N/A 14 mm N/A 22 mm N/A 13 mm N/A 8800 N N/A 10400 N N/A 17000 r/min N/A 26000 r/min N/A 0.02 g
RNA 4901 N/A 16 mm N/A 24 mm N/A 13 mm N/A 9900 N N/A 12200 N N/A 16000 r/min N/A 24000 r/min N/A 0.02 g
RNA 4902 N/A 20 mm N/A 28 mm N/A 13 mm N/A 11200 N N/A 15300 N N/A 13000 r/min N/A 19000 r/min N/A 0.02 g
RNA 4903 N/A 22 mm N/A 30 mm N/A 13 mm N/A 11400 N N/A 16300 N N/A 12000 r/min N/A 18000 r/min N/A 0.02 g
RNA 4904 N/A 25 mm N/A 37 mm N/A 17 mm N/A 21600 N N/A 28000 N N/A 9500 r/min N/A 15000 r/min N/A 0.05 g
RNA 49/22 N/A 28 mm N/A 39 mm N/A 17 mm N/A 23300 N N/A 32000 N N/A 9000 r/min N/A 14000 r/min N/A 0.05 g
RNA 490S N/A 30 mm N/A 42.000 mm N/A 17 mm N/A 24200 N N/A 34500 N N/A 8500 r/min N/A 13000 r/min N/A 0.06 g
RNA 49/28 N/A 32 mm N/A 45 mm N/A 17 mm N/A 25100 N N/A 36500 N N/A 8000 r/min N/A 12000 r/min N/A 0.07 g
RNA 4906 N/A 35 mm N/A 47 mm N/A 17 mm N/A 25500 N N/A 39000 N N/A 7500 r/min N/A 11000 r/min N/A 0.07 g
RNA 49/32 N/A 40 mm N/A 52.000 mm N/A 20 mm N/A 30800 N N/A 51000 N N/A 7000 r/min N/A 10000 r/min N/A 0.09 g
RNA 4907 N/A 42 mm N/A 55.000 mm N/A 20 mm N/A 31900 N N/A 54000 N N/A 6700 r/min N/A 9500 r/min N/A 0.11 g
RNA 4908 N/A 48 mm N/A 62 mm N/A 22 mm N/A 42900 N N/A 71000 N N/A 5600 r/min N/A 8000 r/min N/A 0.14 g
RNA 4909 N/A 52 mm N/A 68.000 mm N/A 22 mm N/A 45700 N N/A 78000 N N/A 5300 r/min N/A 7500 r/min N/A 0.18 g
RNA 4910 N/A 58 mm N/A 72 mm N/A 22 mm N/A 47300 N N/A 85000 N N/A 5000 r/min N/A 7000 r/min N/A 0.16 g
RNA 4911 N/A 63 mm N/A 80.000 mm N/A 25 mm N/A 57200 N N/A 106000 N N/A 4500 r/min N/A 6300 r/min N/A 0.26 g
RNA 4912 N/A 68 mm N/A 85.000 mm N/A 25 mm N/A 60500 N N/A 114000 N N/A 4300 r/min N/A 6000 r/min N/A 0.28 g
RNA 4913 N/A 72 mm N/A 90 mm N/A 25 mm N/A 61600 N N/A 120000 N N/A 4000 r/min N/A 5600 r/min N/A 0.31 g
RNA 4914 N/A 80 mm N/A 100 mm N/A 30 mm N/A 84200 N N/A 163000 N N/A 3600 r/min N/A 5000 r/min N/A 0.46 g
RNA 4915 N/A 85 mm N/A 105 mm N/A 30 mm N/A 84200 N N/A 170000 N N/A 3400 r/min N/A 4800 r/min N/A 0.60 g
RNA 4916 N/A 90 mm N/A 110.000 mm N/A 30 mm N/A 88000 N N/A 183000 N N/A 3200 r/min N/A 4500 r/min N/A 0.52 g
RNA 4917 N/A 100 mm N/A 120 mm N/A 35 mm N/A 108000 N N/A 250000 N N/A 2800 r/min N/A 4000 r/min N/A 0.66 g
RNA 4918 N/A 105 mm N/A 125.000 mm N/A 35 mm N/A 112000 N N/A 265000 N N/A 2600 r/min N/A 3800 r/min N/A 0.75 g
RNA 4919 N/A 110 mm N/A 130.000 mm N/A 35 mm N/A 114000 N N/A 270000 N N/A 2400 r/min N/A 3600 r/min N/A 0.72 g
RNA 4920 N/A 115 mm N/A 140.000 mm N/A 40 mm N/A 125000 N N/A 280000 N N/A 2200 r/min N/A 3400 r/min N/A 1.20 g
RNA 4922 N/A 125 mm N/A 150.000 mm N/A 40 mm N/A 130000 N N/A 300000 N N/A 2000 r/min N/A 3200 r/min N/A 1.25 g
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