plaquette MACHLINE - Ntn-snr.com

Precision self-locking nuts
It is highly recommended that precision self-locking nuts are used whenever MachLine
bearings are installed. They can be used to preload a bearing assembly and ensure the
preload is maintained over time. When used with large axial loads, the assembly can be
reliably positioned to last.
Features
- High strength steel (1,000 N/mm 2 ) throughout the
range, protected by finish rolling (apart from back
face and threads).
- Squareness < 2 µm between back face / bore.
- Metric thread with tolerance 5H (as per ISO 965/1).
- Narrow or wide series.
- Locking via blind holes or slots.
- Nuts locked with 2 or 4 bronze inserts.
Installation precautions
As with bearings, wait until the last moment to
remove nuts from packaging to avoid contamination
risks. Place them on the rolled face. Once the
nut has been tightened with a wrench (DIN 1810A
and DIN 1810B), tighten the insert fastening screws
with an Allen key (4 insert series: tighten gradually
in a cross formation).
You are advised to replace nuts each time
bearings are replaced.
SNR offers a full range of wrenches which are
solid, secure and easy to use. The 5 dimensions
of our wrenches are sufficient to replace the
equivalent of 15 conventional fixed models. For
more information, visit: www.snr-bearings.com
or contact your SNR technician.
Series with slots
Series with blind holes
Rolled surface
Rolled surface
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