Tapered bore NN30 series of cylindrical roller bearings are radial support for machine tool spindle.
NNU49 series belongs to double cylindrical roller bearings. N19, N10 Single are single row...
taper bore from 1008 to 7060 .
and QD bore from small one type SH to big one type P .
2\ sprockets ,gears , racks ,bevel gears ,worms
3\ weld-on hubs , bolt-on hubs
4\ Bi-lock pulleys with steel...
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