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 |
149.555 mm
|
Thread size |
|---|---|---|
|
12
|
Threads per inch | |
| d1 |
169.875 mm
|
Diameter locating side face |
| d3 |
max. 181.102 mm
|
Outside diameter |
| B |
24.867 mm
|
Width |
| b |
15.494 mm
|
Width locating slot |
| h |
5.817 mm
|
Depth locating slot |
| Axial load carrying capacity, static |
400 kN
|
| Mass lock nut |
1.58 kg
|
| Associated spanner |
TMFN 23-30
|
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