N 500

N lock nuts are used to locate bearings onto a shaft.

They have inch threads and four, equally spaced slots around their circumference to accommodate a spanner. They should be locked by a lock washer or locking plate to prevent unintentional loosening. N lock nuts can be reused, provided they are not damaged.

• Simple, stable and reliable fastening element
• Easy to install and remove
• Reusable with a new locking device
• Require a keyway in the shaft or adapter sleeve

Dimensions

G	499.923 mm	Thread diameter
	5	Threads per inch
d1	550.875 mm	Diameter locating side face
d2	548.894 mm	Pitch diameter threaded holes for locking clip
d3	max.579.577 mm	Outside diameter
B	68.656 mm	Width
B5	82.55 mm	Width including locking plate
b	37.592 mm	Width locating slot
h	15.342 mm	Depth locating slot