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3.1. Coupling NK
The LEONARD coupling NK (see figure 3.1.1 and 3.1.2) is a cross disk coupling
made of steel. This coupling is particularly suitable for driving of slow running
rotary cam switches. It is possible to compensate axial-, radial- and angular
displacements with this type.
Mechanical data:
flanges: high-grad steel
cross-disk: high-grad steel
retaining bolt: square-head bolt DIN 478 - M8
housing colour: RAL 6011 „green hammer finish”
max. boring: ø25H7
normal boring: ø15H7, ∆20H7
borings: with feather key according to DIN 6885
max. angular displacement: 1°
max. axial displacement: 2 mm
max. radial displacement: 2 mm
max. drive speed: 500 r.p.m.
max. torque: 5 Nm
maintenance: none
fitting position: any
weight: 2 kg
operating temperature: -30 °C to +100 °C
storage temperature: -50 °C to +120 °C
NK
·
Fig. 3.1.1:
Coupling NK
Fig. 3.1.2: Dimensioned Drawing NK
Ordering instructions for coupling:
type - bore diameter d1 [mm] *1)-bore diameter d2 [mm] *1)
NK
Example:
NK – 20 – 20
*1) If this information is missing, the boring is ø15H7 on both sides.
·
NK
– 41 – 3.1
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