CNB Clampnut

CNB.GIF

This series of CLAMP NUTS has the bearing threads specified to the AFBMA/ANSI standards, fits, and tolerances thus are fully interchangeable with the retaining devices generally used in bearing and other power transmission assemblies. These threads are in accordance with the American National Form of the National Standard Class 3 with thread length based on a 45 chamfer as specified in the Screw Thread Standards as set forth in the Federal Services Handbook H-28-1957.

The bearing face - the side with the clearance relief above the face diameter - is machined square to the axis of the pitch diameter of the threads whereby the runout for one revolution has a total indicator reading variance no greater than: .002 for sizes 00 to 14, .004 for sizes 15 to 40.

As with all precision retaining devices, care must be taken during assembly to assure premium performance. Please open and review our installation instructions for proper technique and best results.



Identification Thread
Outside Dia
(inches)
Face Dia
(inches)
Width
(inches)
Axial Load
(lbs)
Lockscrew
CAD
CNB-00 .391-32 1.125 0.620 0.385 7200 M4 CAD
CNB-01 .469-32 1.125 0.710 0.385 8100 M4 CAD
CNB-02 .586-32 1.312 0.810 0.385 9800 M4 CAD
CNB-03 .664-32 1.500 0.930 0.510 14900 M6 CAD
CNB-04 .781-32 1.750 1.120 0.510 17400 M6 CAD
CNB-05 .969-32 1.875 1.280 0.510 19800 M6 CAD
CNB-06 1.173-18 2.062 1.500 0.510 22100 M6 CAD
CNB-065 1.312-18 2.375 1.810 0.510 25500 M6 CAD
CNB-07 1.376-18 2.375 1.810 0.510 25500 M6 CAD
CNB-08 1.563-18 2.500 2.000 0.510 26600 M6 CAD
CNB-09 1.767-18 2.688 2.280 0.510 27800 M6 CAD
CNB-10 1.967-18 3.000 2.430 0.510 31300 M6 CAD
CNB-11 2.157-18 3.375 2.650 0.635 44500 M8 CAD
CNB-12 2.360-18 3.625 2.840 0.635 47400 M8 CAD
CNB-13 2.548-18 3.875 3.060 0.635 50400 M8 CAD
CNB-14 2.751-18 4.125 3.310 0.635 53300 M8 CAD
CNB-15 2.933-12 4.250 3.560 0.708 59000 M8 CAD
CNB-16 3.137-12 4.500 3.840 0.708 61900 M8 CAD
CNB-17 3.340-12 4.750 4.030 0.708 63800 M8 CAD
CNB-18 3.527-12 4.875 4.280 0.708 64600 M8 CAD
CNB-19 3.730-12 5.313 4.560 0.832 85800 M10 CAD
CNB-20 3.918-12 5.500 4.810 0.832 87600 M10 CAD
CNB-21 4.122-12 5.750 5.000 0.832 90900 M10 CAD
CNB-22 4.325-12 6.000 5.280 0.832 94300 M10 CAD
CNB-24 4.716-12 6.375 5.690 0.832 96900 M10 CAD
CNB-26 5.106-12 6.875 6.180 0.956 119800 M12 CAD
CNB-28 5.497-12 7.250 6.530 0.956 122400 M12 CAD
CNB-30 5.888-12 7.750 7.060 0.956 125800 M12 CAD
CNB-32 6.284-8 8.000 7.430 0.956 126700 M12 CAD
CNB-34 6.659-8 8.500 8.030 0.956 134700 M12 CAD
CNB-36 7.066-8 9.000 8.375 1.000 151300 M12 CAD
CNB-38 7.472-8 9.500 8.781 1.000 153100 M12 CAD
CNB-40 7.847-8 9.750 9.156 1.000 154300 M12 CAD

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