The HM locknut with metric trapezoidal thread is used to lock the bearing to the shaft. It has eight grooves equally spaced around its circumference, which makes it easy to lock with an impact spanner. The locknut is locked to the shaft by means of an MS locking clip. The HM locknut can be reused without damage. Each time the corresponding locknut is reinstalled, a new locking clip should be used.
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Skim Through
| Thread type | Tr 300x4 |
| Inner diameter | 300.0mm |
| Outer diameter | 380.0mm |
| Width | 40.0mm |
| Locking Device | Locking Buckle |
| Hydraulic mounting nut | No |
| Associated Mounting Tools | TMFN 52-64 |
| Net weight | 10.6kg |
| eClass Code | 23-11-07-05 |
| UNSPSC Code | 31163218 |
Technical Parameters
| G | Tr 300x4 | Thread |
| d3 | 380.0mm | Outer diameter |
| B | 40.0mm | Width |
| d1 | 340.0mm | Positioning side diameter |
| d2 | 326.0mm | Pitch diameter of threaded port for anti-loosening clasp |
| B5 | 53.0mm | Including the width of the locking clip |
| b | 24.0mm | Width of locating groove |
| h | 12.0mm | Positioning slot depth |
| Related spanners | TMFN 52-64, lifting bolts for handling | M 10 |
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