Round nuts

The round nut is often used with a stop washer for the round nut, and the inner tongue of the washer is inserted into the groove on the shaft during assembly, and the outer tongue of the washer is embedded in the groove of the round nut, and the nut is locked; Or adopt double nut anti-loosening. It is often used as an axial fixation for rolling bearings. Round nut with thread specification M10×1~M200×3.

Thread specification D=M16×1.5, material is 45 steel, groove or all heat treatment hardness HRC35~45, surface oxidized round nut marking: nut GB/T 812-88 M16×1.5.

Advantages and disadvantages of round nuts for fixing parts on the shaft

Advantages: (1) It can withstand large axial force and is easy to disassemble and assemble; (2) Used for parts and bearings far away, can avoid the use of long sleeves, conducive to the fixing of parts;

Disadvantages: The load of the threaded tooth on the bearing and the retract groove weaken the strength of the bearing and cause stress concentration.