NM Jaw Coupling Element
The NM coupling weaving element restricts torsional oscillation, safeguarding machinery at critical speeds with excellent internal damping.
The NM coupling features a unique element that moves in a weaving pattern between the jaws. This element possesses excellent internal damping properties, allowing the coupling to restrict torsional oscillation and safeguard the connected machinery against potential harm when operating at critical speeds.
The elements are available in Perbunan (Pb72) material grade, which includes nitrile rubber (NBR) and has hardness options of 72 and 82 shore A. They can operate within a temperature range of -40°C to +120°C.
Jaw Couplings
The Jaw Coupling is recognised across a large range of industries. Highly resilient, does not require any lubrication and can work in environments contaminated with oil, dirt, sand, moisture and grease.
The rubber insert is designed to absorb shock loading and does not allow for any metal on metal contact.
| Size | Bore (mm) | OD | D1 | L | S | Max Speed (RPM) | Torque (NM) | Power Rating kW / rpm | Weight (kg) / set | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Nominal | Max | ||||||||
| NM-50 | 7 | 19 | 50 | 33 | 25 | 2.0±0.5 | 13500 | 12.74 | 22.54 | 1.33 | 0.52 |
| NM-67 | 9 | 28 | 67 | 46 | 30 | 2.5±0.5 | 10000 | 21.56 | 39.2 | 2.26 | 0.93 |
| NM-82 | 10 | 32 | 82 | 53 | 40 | 3.0±0.5 | 8000 | 49 | 88.2 | 5.13 | 1.78 |
| NM-97 | 12 | 42 | 97 | 69 | 50 | 3.0±0.5 | 7000 | 102.9 | 186.2 | 10.78 | 3.46 |
| NM-112 | 14 | 48 | 112 | 79 | 60 | 3.5±0.5 | 6000 | 163.66 | 294 | 17.14 | 5 |
| NM-128 | 18 | 55 | 128 | 90 | 70 | 3.5±0.5 | 5000 | 261.66 | 470 | 27.40 | 7.9 |