NM Jaw Couplings
The TransDrive NM Series Jaw Coupling Full Unit is designed to deliver smooth, reliable torque transmission while protecting machinery from harmful vibrations. It consists of two precision-machined hubs and a distinctive ring-style elastomer element that moves in a unique weaving pattern between the jaws. This specialised movement, combined with the element’s superior internal damping properties, effectively reduces torsional oscillations and helps safeguard equipment operating at or near critical speeds.
Built for high wear resistance and steady operation, the NM Series coupling is ideal for applications requiring consistent performance and vibration control. Its advanced design ensures long service life, reduced maintenance, and enhanced protection for connected components in a wide range of industrial environments.
Product Specifications
| 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 | 2.0±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 |
Elements
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.
| Products |
|---|
| NM-50 |
| NM-67 |
| NM-82 |
| NM-97 |
| NM-112 |
| NM-128 |
