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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 with inner rings are used if the shaft cannot be used as a raceway.
Needle Roller Bearings NKI Single Row with Inner Ring
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Item #

(d) Bore Diameter

(D) Outside Diameter

(C) Width

(C) Dynamic Load

(Co) Static Load

Weight

NKI 30/30 N/A 30 mm N/A 45 mm N/A 30 mm N/A 35800 N N/A 72000 N N/A 0.17 g
NKI 32/20 N/A 32.000 mm N/A 47 mm N/A 20 mm N/A 25100 N N/A 46500 N N/A 0.12 g
NKI 32/30 N/A 32.000 mm N/A 47 mm N/A 30 mm N/A 36900 N N/A 76500 N N/A 0.18 g
NKI 35/20 N/A 35 mm N/A 50 mm N/A 20 mm N/A 26400 N N/A 51000 N N/A 0.13 g
NKI 35/30 N/A 35 mm N/A 50 mm N/A 30 mm N/A 38000 N N/A 83000 N N/A 0.19 g
NKI 38/20 N/A 38.000 mm N/A 53 mm N/A 20 mm N/A 27500 N N/A 55000 N N/A 0.14 g
NKI 38/30 N/A 38.000 mm N/A 53 mm N/A 30 mm N/A 40200 N N/A 90000 N N/A 0.21 g
NKI 40/20 N/A 40 mm N/A 55.000 mm N/A 20 mm N/A 27500 N N/A 57000 N N/A 0.14 g
NKI 40/30 N/A 40 mm N/A 55.000 mm N/A 30 mm N/A 40200 N N/A 93000 N N/A 0.22 g
NKI 42/20 N/A 42 mm N/A 57 mm N/A 20 mm N/A 29200 N N/A 61000 N N/A 0.15 g
NKI 42/30 N/A 42 mm N/A 57 mm N/A 30 mm N/A 41800 N N/A 98000 N N/A 0.22 g
NKI 45/25 N/A 45 mm N/A 62 mm N/A 25 mm N/A 38000 N N/A 78000 N N/A 0.23 g
NKI 45/35 N/A 45 mm N/A 62 mm N/A 35 mm N/A 49500 N N/A 110000 N N/A 0.32 g
NKI 50/25 N/A 50 mm N/A 68.000 mm N/A 25 mm N/A 40200 N N/A 88000 N N/A 0.27 g
NKI 50/35 N/A 50 mm N/A 68.000 mm N/A 35 mm N/A 52300 N N/A 122000 N N/A 0.38 g
NKI 55/25 N/A 55 mm N/A 72 mm N/A 25 mm N/A 41800 N N/A 96500 N N/A 0.27 g
NKI 55/35 N/A 55 mm N/A 72 mm N/A 35 mm N/A 55000 N N/A 134000 N N/A 0.38 g
NKI 60/25 N/A 60 mm N/A 82 mm N/A 25 mm N/A 44000 N N/A 95000 N N/A 0.40 g
NKI 60/35 N/A 60 mm N/A 82 mm N/A 35 mm N/A 60500 N N/A 146000 N N/A 0.55 g
NKI 65/25 N/A 65.000 mm N/A 90 mm N/A 25 mm N/A 52800 N N/A 106000 N N/A 0.47 g
NKI 65/35 N/A 65.000 mm N/A 90 mm N/A 35 mm N/A 73700 N N/A 163000 N N/A 0.66 g
NKI 70/25 N/A 70.000 mm N/A 95.000 mm N/A 25 mm N/A 56100 N N/A 127000 N N/A 0.52 g
NKI 70/35 N/A 70.000 mm N/A 95.000 mm N/A 35 mm N/A 76500 N N/A 190000 N N/A 0.74 g
NKI 75/25 N/A 75.000 mm N/A 105 mm N/A 25 mm N/A 69300 N N/A 132000 N N/A 0.64 g
NKI 75/35 N/A 75.000 mm N/A 105 mm N/A 35 mm N/A 96800 N N/A 200000 N N/A 0.91 g
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