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

MA1311 N/A 2.1654 in55.000 mm N/A 1.1417 in29.000 mm N/A 0.0799 in2.030 mm
MA1312 N/A 2.3622 in60.000 mm N/A 1.2205 in31.000 mm N/A 0.1000 in2.540 mm
MA1313 N/A 2.5591 in65.000 mm N/A 1.2992 in33.000 mm N/A 0.1000 in2.540 mm
MA1314 N/A 2.7559 in70.000 mm N/A 1.3780 in35.000 mm N/A 0.1220 in3.100 mm
MA1315 N/A 2.9528 in75.000 mm N/A 1.4567 in37.000 mm N/A 0.1252 in3.180 mm
MA1316 N/A 3.1496 in80.000 mm N/A 1.5354 in39.000 mm N/A 0.1252 in3.180 mm
MA1318 N/A 3.5433 in90.000 mm N/A 1.6929 in43.000 mm N/A 0.1559 in3.960 mm
MA5205 N/A 0.9843 in25.000 mm N/A 0.8125 in20.638 mm N/A 0.0402 in1.020 mm
MA5206 N/A 1.1811 in30.000 mm N/A 0.9375 in23.812 mm N/A 0.0402 in1.020 mm
MA5207 N/A 1.3780 in35.000 mm N/A 1.0625 in26.988 mm N/A 0.0402 in1.020 mm
MA5208 N/A 1.5748 in40.000 mm N/A 1.1875 in30.162 mm N/A 0.0598 in1.520 mm
MA5209 N/A 1.7717 in45.000 mm N/A 1.1875 in30.162 mm N/A 0.0598 in1.520 mm
MA5210 N/A 1.9685 in50.000 mm N/A 1.1875 in30.162 mm N/A 0.0598 in1.520 mm
MA5211 N/A 2.1654 in55.000 mm N/A 1.3125 in33.338 mm N/A 0.0799 in2.030 mm
MA5212 N/A 2.3622 in60.000 mm N/A 1.4375 in36.512 mm N/A 0.0799 in2.030 mm
MA5213 N/A 2.5591 in65.000 mm N/A 1.5000 in38.100 mm N/A 0.1000 in2.540 mm
MA5214 N/A 2.7559 in70.000 mm N/A 1.5625 in39.688 mm N/A 0.1000 in2.540 mm
MA5215 N/A 2.9528 in75.000 mm N/A 1.6250 in41.275 mm N/A 0.1000 in2.540 mm
MA5216 N/A 3.1496 in80.000 mm N/A 1.7500 in44.450 mm N/A 0.1000 in2.540 mm
MA5217 N/A 3.3465 in85.000 mm N/A 1.9375 in49.212 mm N/A 0.1252 in3.180 mm
MA5218 N/A 3.5433 in90.000 mm N/A 2.0625 in52.388 mm N/A 0.1252 in3.180 mm
MA5219 N/A 3.7402 in95.000 mm N/A 2.1875 in55.562 mm N/A 0.1252 in3.180 mm
MA5220 N/A 3.9370 in100.000 mm N/A 2.3750 in60.325 mm N/A 0.1559 in3.960 mm
MA5224 N/A 4.7244 in120.000 mm N/A 3.0000 in76.200 mm N/A 0.1870 in4.750 mm
MA5226 N/A 5.1181 in130.000 mm N/A 3.1250 in79.375 mm N/A 0.1870 in4.750 mm
Unit of Measure
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