N 900

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	900.201 mm	Thread diameter
	3	Threads per inch
d1	974.725 mm	Diameter locating side face
d2	980.694 mm	Pitch diameter threaded holes for locking clip
d3	max.1 030.427 mm	Outside diameter
B	100.406 mm	Width
B5	117.45 mm	Width including locking plate
b	62.992 mm	Width locating slot
h	25.654 mm	Depth locating slot