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

1R300X330X80 N/A 11.8110 in300.000 mm N/A 12.9921 in330.000 mm N/A 3.1496 in80.000 mm N/A 0.0827 in2.100 mm
1R300X340X118 N/A 11.8110 in300.000 mm N/A 13.3858 in340.000 mm N/A 4.6457 in118.000 mm N/A 0.1181 in3.000 mm
1R30X35X12.5 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.4921 in12.500 mm N/A 0.0118 in0.300 mm
1R30X35X13 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.5118 in13.000 mm N/A 0.0118 in0.300 mm
1R30X35X16 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.6299 in16.000 mm N/A 0.0118 in0.300 mm
1R30X35X16.5 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.6496 in16.500 mm N/A 0.0118 in0.300 mm
1R30X35X17 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.6693 in17.000 mm N/A 0.0118 in0.300 mm
1R30X35X18D N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.7087 in18.000 mm N/A 0.0118 in0.300 mm
1R30X35X20 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.7874 in20.000 mm N/A 0.0118 in0.300 mm
1R30X35X20.5 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.8071 in20.500 mm N/A 0.0118 in0.300 mm
1R30X35X23 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 0.9055 in23.000 mm N/A 0.0118 in0.300 mm
1R30X35X26 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 1.0236 in26.000 mm N/A 0.0118 in0.300 mm
1R30X35X30 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 1.1811 in30.000 mm N/A 0.0118 in0.300 mm
1R30X35X32 N/A 1.1811 in30.000 mm N/A 1.3780 in35.000 mm N/A 1.2598 in32.000 mm N/A 0.0118 in0.300 mm
1R30X37X18 N/A 1.1811 in30.000 mm N/A 1.4567 in37.000 mm N/A 0.7087 in18.000 mm N/A 0.0118 in0.300 mm
1R30X37X22 N/A 1.1811 in30.000 mm N/A 1.4567 in37.000 mm N/A 0.8661 in22.000 mm N/A 0.0236 in0.600 mm
1R30X38X20 N/A 1.1811 in30.000 mm N/A 1.4961 in38.000 mm N/A 0.7874 in20.000 mm N/A 0.0236 in0.600 mm
1R320X350X80 N/A 12.5984 in320.000 mm N/A 13.7795 in350.000 mm N/A 3.1496 in80.000 mm N/A 0.0827 in2.100 mm
1R320X360X118 N/A 12.5984 in320.000 mm N/A 14.1732 in360.000 mm N/A 4.6457 in118.000 mm N/A 0.1181 in3.000 mm
1R32X37X20 N/A 1.2598 in32.000 mm N/A 1.4567 in37.000 mm N/A 0.7874 in20.000 mm N/A 0.0118 in0.300 mm
1R32X37X30 N/A 1.2598 in32.000 mm N/A 1.4567 in37.000 mm N/A 1.1811 in30.000 mm N/A 0.0118 in0.300 mm
1R32X38X32 N/A 1.2598 in32.000 mm N/A 1.4961 in38.000 mm N/A 1.2598 in32.000 mm N/A 0.0118 in0.300 mm
1R32X40X20 N/A 1.2598 in32.000 mm N/A 1.5748 in40.000 mm N/A 0.7874 in20.000 mm N/A 0.0236 in0.600 mm
1R32X40X27 N/A 1.2598 in32.000 mm N/A 1.5748 in40.000 mm N/A 1.0630 in27.000 mm N/A 0.0236 in0.600 mm
1R32X40X36 N/A 1.2598 in32.000 mm N/A 1.5748 in40.000 mm N/A 1.4173 in36.000 mm N/A 0.0236 in0.600 mm
Unit of Measure
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