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.
| G |
530.022 mm
|
Thread size |
|---|---|---|
|
4
|
Threads per inch | |
| d1 |
590.55 mm
|
Diameter locating side face |
| d2 |
593.344 mm
|
Pitch diameter threaded holes for locking clip |
| d3 |
max. 630.377 mm
|
Outside diameter |
| B |
68.656 mm
|
Width |
| B5 |
82.55 mm
|
Width including locking plate |
| b |
40.767 mm
|
Width locating slot |
| h |
20.904 mm
|
Depth locating slot |
| Mass lock nut |
52.5 kg
|
| Associated spanner |
TMFN 80-500
|
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