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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Inner Ring for Cylindrical Roller Bearings
Inner Ring for Cylindrical Roller Bearings - Dimensions
Unit of Measure
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Item #

B

W

R

MA1017 N/A 3.3465 in85.000 mm N/A 0.8661 in22.000 mm N/A 0.0799 in2.030 mm
MA1205 N/A 0.9843 in25.000 mm N/A 0.5906 in15.000 mm N/A 0.0402 in1.020 mm
MA1206 N/A 1.1811 in30.000 mm N/A 0.6299 in16.000 mm N/A 0.0402 in1.020 mm
MA1207 N/A 1.3780 in35.000 mm N/A 0.6693 in17.000 mm N/A 0.0402 in1.020 mm
MA1208 N/A 1.5748 in40.000 mm N/A 0.7087 in18.000 mm N/A 0.0591 in1.502 mm
MA1209 N/A 1.7717 in45.000 mm N/A 0.7480 in19.000 mm N/A 0.0591 in1.502 mm
MA1210 N/A 1.9685 in50.000 mm N/A 0.7874 in20.000 mm N/A 0.0591 in1.502 mm
MA1211 N/A 2.1654 in55.000 mm N/A 0.8268 in21.000 mm N/A 0.0799 in2.030 mm
MA1212 N/A 2.3622 in60.000 mm N/A 0.8661 in22.000 mm N/A 0.0799 in2.030 mm
MA1213 N/A 2.5591 in65.000 mm N/A 0.9055 in23.000 mm N/A 0.1000 in2.540 mm
MA1214 N/A 2.7559 in70.000 mm N/A 0.9449 in24.000 mm N/A 0.1000 in2.540 mm
MA1215 N/A 2.9528 in75.000 mm N/A 0.9843 in25.000 mm N/A 0.1000 in2.540 mm
MA1216 N/A 3.1496 in80.000 mm N/A 1.0236 in26.000 mm N/A 0.1000 in2.540 mm
MA1217 N/A 3.3465 in85.000 mm N/A 1.1024 in28.000 mm N/A 0.1252 in3.180 mm
MA1218 N/A 3.5433 in90.000 mm N/A 1.1811 in30.000 mm N/A 0.1252 in3.180 mm
MA1220 N/A 3.9370 in100.000 mm N/A 1.3386 in34.000 mm N/A 0.1559 in3.960 mm
MA1222 N/A 4.3307 in110.000 mm N/A 1.4961 in38.000 mm N/A 0.1559 in3.960 mm
MA1228 N/A 5.5118 in140.000 mm N/A 1.6535 in42.000 mm N/A 0.1870 in4.750 mm
MA1304 N/A 0.7874 in20.000 mm N/A 0.5906 in15.000 mm N/A 0.0402 in1.020 mm
MA1305 N/A 0.9843 in25.000 mm N/A 0.6693 in17.000 mm N/A 0.0402 in1.020 mm
MA1306 N/A 1.1811 in30.000 mm N/A 0.7480 in19.000 mm N/A 0.0598 in1.520 mm
MA1307 N/A 1.3780 in35.000 mm N/A 0.8268 in21.000 mm N/A 0.0598 in1.520 mm
MA1308 N/A 1.5748 in40.000 mm N/A 0.9055 in23.000 mm N/A 0.0598 in1.520 mm
MA1309 N/A 1.7717 in45.000 mm N/A 0.9843 in25.000 mm N/A 0.0799 in2.030 mm
MA1310 N/A 1.9685 in50.000 mm N/A 1.0630 in27.000 mm N/A 0.0799 in2.030 mm
Unit of Measure
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