NTN BEARING CORPORATION OF AMERICA
NTN BEARING CORPORATION OF AMERICA
Head Office
1600 E. Bishop Court, P.O. Box 7604
Mount Prospect, IL 60056-7604, U.S.A.
Phone: 847-298-7500
Fax: 847-699-9744
Toll Free: 800-323-2358
Email: mkt@ntnamerica.com
Website: www.ntnamericas.com
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Spherical Roller Bearings w/ Standard Bore
Unit of Measure
Items Spherical Roller Bearings w/ Standard Bore
21305V
Spherical Roller Bearing w/ Standard Bore, 213 Series 		Spherical Roller Bearings w/ Standard Bore
21306VC3
Spherical Roller Bearing w/ Standard Bore, 213 Series 		Spherical Roller Bearings w/ Standard Bore
21307VC3
Spherical Roller Bearing w/ Standard Bore, 213 Series 		Spherical Roller Bearings w/ Standard Bore
21308CW33
Spherical Roller Bearing w/ Standard Bore & Oil Groove, 213 Series 		Spherical Roller Bearings w/ Standard Bore
21308CW33C3
Spherical Roller Bearing w/ Standard Bore & Oil Groove, 213 Series
Type N/A Spherical Roller Bearing
Bore Type N/A Round
Material N/A Through Hardened Steel
Cage Type N/A Pressed
Cage Material N/A Steel
Limiting Speed - Oil N/A N/A N/A N/A 6400 RPM N/A 6400 RPM
Limiting Speed - Grease N/A N/A N/A N/A 4900 RPM N/A 4900 RPM
d N/A 0.9843 in25.000 mm N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 1.5748 in40.000 mm N/A 1.5748 in40.000 mm
D N/A 2.4409 in62.000 mm N/A 2.8346 in72.000 mm N/A 3.1496 in80.000 mm N/A 3.5433 in90.000 mm N/A 3.5433 in90.000 mm
B N/A 0.6693 in17.000 mm N/A 0.7480 in19.000 mm N/A 0.8661 in22.000 mm N/A 0.9055 in23.000 mm N/A 0.9055 in23.000 mm
d1 N/A 1.3386 in34.000 mm N/A 1.5748 in40.000 mm N/A 1.8110 in46.000 mm N/A 2.0472 in52.000 mm N/A 2.0472 in52.000 mm
D1 N/A 2.0472 in52.000 mm N/A 2.3622 in60.000 mm N/A 2.6772 in68.000 mm N/A 2.9882 in75.900 mm N/A 2.9921 in76.000 mm
r N/A 0.0433 in1.100 mm N/A 0.0433 in1.100 mm N/A 0.0591 in1.500 mm N/A 0.0591 in1.500 mm N/A 0.0591 in1.500 mm
W0 N/A N/A N/A N/A 0.1378 in3.500 mm N/A 0.2362 in6.000 mm
d0 N/A N/A N/A N/A 0.1181 in3.000 mm N/A 0.1181 in3.000 mm
da min N/A 1.2598 in32.000 mm N/A 1.4567 in37.000 mm N/A 1.7323 in44.000 mm N/A 1.9094 in48.500 mm N/A 1.9094 in48.500 mm
Da max N/A 2.1654 in55.000 mm N/A 1.3780 in35.000 mm N/A 2.7953 in71.000 mm N/A 3.2087 in81.500 mm N/A 3.2087 in81.500 mm
ras max N/A 0.0394 in1.000 mm N/A 0.0394 in1.000 mm N/A 0.0591 in1.500 mm N/A 0.0591 in1.500 mm N/A 0.0591 in1.500 mm
e N/A 0.29 N/A 0.28 N/A 0.27 N/A 0.26 N/A 0.26
Y1 N/A 2.33 N/A 2.45 N/A 2.48 N/A 2.55 N/A 2.55
Y2 N/A 3.47 N/A 3.64 N/A 3.69 N/A 3.80 N/A 3.80
Y0 N/A 2.28 N/A 2.39 N/A 2.42 N/A 2.50 N/A 2.50
Series N/A 213
Radial Internal Clearance N/A CN N/A C3 N/A C3 N/A CN N/A C3
Radial Internal Clearance Specification N/A
Ring Modification N/A Plain N/A Plain N/A Plain N/A Relube N/A Relube
Tolerance N/A JIS-0 RBEC-1
Static Load Rating N/A 8450 lbf37500 N37.50 kN N/A 11200 lbf50000 N50.00 kN N/A 14800 lbf66000 N66.00 kN N/A 20200 lbf90000 N90.00 kN N/A 20200 lbf90000 N90.00 kN
Dynamic Load Rating N/A 10900 lbf48500 N48.50 kN N/A 14200 lbf63000 N63.00 kN N/A 17800 lbf79000 N79.00 kN N/A 19800 lbf88000 N88.00 kN N/A 19800 lbf88000 N88.00 kN
Enclosure N/A Open
Weight N/A 0.567 lb0.257 kg N/A 0.869 lb0.394 kg N/A 1.131 lb0.513 kg N/A 1.554 lb0.705 kg N/A 1.554 lb0.705 kg
Operating Temperature Range N/A -40 to 250 ºF-40 to 120 ºC