Precision Locknut (Flank Locking)

The setscrews of locknut intersect a 30° angle with radius.

Precision Locknut (Radial Locking)

The setscrews of locknut intersect a 90° angle with axis

Precision Locknut (Axial Locking)

The socket head screws/setscrews of locknut intersect a 0° angle with axis

NIKKI precision locknuts are designed to provide adjustment, preload and secure machine components to spindle/ball-screw and other rotating machine elements. Our locknuts allow accurate setting of preload on bearings and are capable of supporting axial loads with very high rigidity without loosening.

All of our NIKKI precision locknuts are produced under "High Locking", "High Precision", "High Stability" and having following advantages

 No thrust washer or keyway needed.

 Easy to assemble and disassemble.

 Can be re-used if handled properly.

 ISO 4H criterion to minimize axial run-out. (Maximum run-out: 0.002 mm for grinding products; 0.005mm for turning products)

Wrench For NIKKI Precision Locknuts