Precision bearing threads in Series PN, PL, and PT are manufactured to National Standard Class 3.
|PL||Precision Retaining Nut||Same as the PN, but with left-hand threads to resist rotational forces from the counter-clockwise direction.|
|PN||Precision Retaining Nut||Retaining nut to meet the higher precision needs that the N-AN, TN-TAN, and ABMA specifications do not provide. Assure better performance, greater accuracy, smoother operation, and longer life in all applications.|
|PT||Precision Retaining Nut||Thinner, lighter section retaining nuts for use with extra-light ball bearings in light applications such as computer equipment and instruments.|
|PW||Precision Lockwasher||Precision lockwasher for use with the PN and PL series precision retaining nuts.|
|PWT||Precision Lockwasher||Precision lockwasher for use with the PT series precision retaining nut. Keybent.|
|PWTF||Precision Lockwasher||Precision lockwasher for use with the PT series precision retaining nut. Not keybent (flat).|
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