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
Inner Ring - Dimensions
Unit of Measure
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Item #

d

F

B

r

M1-364424 N/A 2.2500 in57.150 mm N/A 2.7500 in69.850 mm N/A 1.5098 in38.350 mm N/A 0.0787 in2.000 mm
M1-364428 N/A 2.2500 in57.150 mm N/A 2.7500 in69.850 mm N/A 1.7598 in44.700 mm N/A 0.0787 in2.000 mm
M1-404824 N/A 2.5000 in63.500 mm N/A 3.0000 in76.200 mm N/A 1.5098 in38.350 mm N/A 0.0787 in2.000 mm
M1-404828 N/A 2.5000 in63.500 mm N/A 3.0000 in76.200 mm N/A 1.7598 in44.700 mm N/A 0.0787 in2.000 mm
M1-425228 N/A 2.6250 in66.675 mm N/A 3.2500 in82.550 mm N/A 1.7598 in44.700 mm N/A 0.0787 in2.000 mm
M1-425232 N/A 2.6250 in66.675 mm N/A 3.2500 in82.550 mm N/A 2.0098 in51.050 mm N/A 0.0787 in2.000 mm
M1-445228 N/A 2.7500 in69.850 mm N/A 3.2500 in82.550 mm N/A 1.7598 in44.700 mm N/A 0.0787 in2.000 mm
M1-485628 N/A 3.0000 in76.200 mm N/A 3.5000 in88.900 mm N/A 1.7598 in44.700 mm N/A 0.0787 in2.000 mm
M1-485632 N/A 3.0000 in76.200 mm N/A 3.5000 in88.900 mm N/A 2.0098 in51.050 mm N/A 0.0787 in2.000 mm
M1-506032 N/A 3.1250 in79.375 mm N/A 3.7500 in95.250 mm N/A 2.0098 in51.050 mm N/A 0.0984 in2.500 mm
M1-546432 N/A 3.3750 in85.725 mm N/A 4.0000 in101.600 mm N/A 2.0098 in51.050 mm N/A 0.0984 in2.500 mm
M1-586832 N/A 3.6250 in92.075 mm N/A 4.2500 in107.950 mm N/A 2.0098 in51.050 mm N/A 0.0984 in2.500 mm
M1-607236 N/A 3.7500 in95.250 mm N/A 4.5000 in114.300 mm N/A 2.2598 in57.400 mm N/A 0.0984 in2.500 mm
M1-627236 N/A 3.8750 in98.425 mm N/A 4.5000 in114.300 mm N/A 2.2598 in57.400 mm N/A 0.0984 in2.500 mm
M1-627240 N/A 3.8750 in98.425 mm N/A 4.5000 in114.300 mm N/A 2.5150 in63.880 mm N/A 0.0984 in2.500 mm
M1-648032 N/A 4.0000 in101.600 mm N/A 5.0000 in127.000 mm N/A 2.0098 in51.050 mm N/A 0.0984 in2.500 mm
M1-648036 N/A 4.0000 in101.600 mm N/A 5.0000 in127.000 mm N/A 2.2598 in57.400 mm N/A 0.0984 in2.500 mm
M1-648040 N/A 4.0000 in101.600 mm N/A 5.0000 in127.000 mm N/A 2.5150 in63.880 mm N/A 0.0984 in2.500 mm
M1-728840 N/A 4.5000 in114.300 mm N/A 5.5000 in139.700 mm N/A 2.5150 in63.880 mm N/A 0.0984 in2.500 mm
M1-728848 N/A 4.5000 in114.300 mm N/A 5.5000 in139.700 mm N/A 3.0150 in76.580 mm N/A 0.0984 in2.500 mm
M1-769248 N/A 4.7500 in120.650 mm N/A 5.7500 in146.050 mm N/A 3.0150 in76.580 mm N/A 0.1181 in3.000 mm
M1-809640 N/A 5.0000 in127.000 mm N/A 6.0000 in152.400 mm N/A 2.5150 in63.880 mm N/A 0.1181 in3.000 mm
M1-809648 N/A 5.0000 in127.000 mm N/A 6.0000 in152.400 mm N/A 3.0150 in76.580 mm N/A 0.1181 in3.000 mm
M1-8810440 N/A 5.5000 in139.700 mm N/A 6.5000 in165.100 mm N/A 2.5150 in63.880 mm N/A 0.1181 in3.000 mm
M1-8810448 N/A 5.5000 in139.700 mm N/A 6.5000 in165.100 mm N/A 3.0150 in76.580 mm N/A 0.1181 in3.000 mm
Unit of Measure
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