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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.

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 NK 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

Weight

NK 20/16 N/A 20 mm N/A 28 mm N/A 16 mm N/A 13200 N N/A 19300 N N/A 0.03 g
NK 20/20 N/A 20 mm N/A 28 mm N/A 20 mm N/A 16500 N N/A 25500 N N/A 0.03 g
NK 21/16 N/A 21 mm N/A 29 mm N/A 16 mm N/A 13800 N N/A 20400 N N/A 0.03 g
NK 21/20 N/A 21 mm N/A 29 mm N/A 20 mm N/A 17200 N N/A 27000 N N/A 0.04 g
NK 22/16 N/A 22 mm N/A 30 mm N/A 16 mm N/A 14200 N N/A 21600 N N/A 0.03 g
NK 22/20 N/A 22 mm N/A 30 mm N/A 20 mm N/A 17900 N N/A 29000 N N/A 0.04 g
NK 24/16 N/A 24 mm N/A 32 mm N/A 16 mm N/A 15400 N N/A 24500 N N/A 0.03 g
NK 24/20 N/A 24 mm N/A 32 mm N/A 20 mm N/A 19000 N N/A 32500 N N/A 0.04 g
NK 25/16 N/A 25 mm N/A 33 mm N/A 16 mm N/A 15100 N N/A 24500 N N/A 0.03 g
NK 25/20 N/A 25 mm N/A 33 mm N/A 20 mm N/A 19000 N N/A 32500 N N/A 0.04 g
NK 26/16 N/A 26 mm N/A 34 mm N/A 16 mm N/A 15700 N N/A 26000 N N/A 0.03 g
NK 26/20 N/A 26 mm N/A 34 mm N/A 20 mm N/A 19400 N N/A 34500 N N/A 0.04 g
NK 28/20 N/A 28 mm N/A 37 mm N/A 20 mm N/A 22000 N N/A 36500 N N/A 0.05 g
NK 28/30 N/A 28 mm N/A 37 mm N/A 30 mm N/A 31900 N N/A 60000 N N/A 0.08 g
NK 29/20 N/A 29 mm N/A 38 mm N/A 20 mm N/A 22000 N N/A 36500 N N/A 0.05 g
NK 29/30 N/A 29 mm N/A 38 mm N/A 30 mm N/A 31900 N N/A 60000 N N/A 0.08 g
NK 30/20 N/A 30 mm N/A 40.000 mm N/A 20 mm N/A 22000 N N/A 38000 N N/A 0.07 g
NK 30/30 N/A 30 mm N/A 40.000 mm N/A 30 mm N/A 33000 N N/A 63000 N N/A 0.10 g
NK 32/20 N/A 32 mm N/A 42.000 mm N/A 20 mm N/A 23300 N N/A 40500 N N/A 0.07 g
NK 32/30 N/A 32 mm N/A 42.000 mm N/A 30 mm N/A 34100 N N/A 65500 N N/A 0.10 g
NK 35/20 N/A 35 mm N/A 45 mm N/A 20 mm N/A 24600 N N/A 45000 N N/A 0.07 g
NK 35/30 N/A 35 mm N/A 45 mm N/A 30 mm N/A 35800 N N/A 72000 N N/A 0.11 g
NK 37/20 N/A 37 mm N/A 47 mm N/A 20 mm N/A 25100 N N/A 46500 N N/A 0.08 g
NK 37/30 N/A 37 mm N/A 47 mm N/A 30 mm N/A 36900 N N/A 76500 N N/A 0.11 g
NK 38/20 N/A 38 mm N/A 48 mm N/A 20 mm N/A 25500 N N/A 49000 N N/A 0.08 g
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