NM50 Flexible Jaw Coupling
NM50 NM flexible coupling with 7-19 mm bore range, 12500 rpm reference maximum speed and 1.3 kgf·m reference normal torque.
View details →Primary NM Coupling
NM128 Flexible Jaw Coupling
NM128 NM flexible coupling with 18-55 mm bore range, 5000 rpm reference maximum speed and 26.7 kgf·m reference normal torque.
Bore range18-55 mm
Reference max speed5000 rpm
Reference normal torque26.7 kgfu00b7m
NM128 is an NM flexible coupling size for industrial shaft connections. Its size data gives a first check for bore capacity, operating speed and torque. The finished hubs are machined to the actual shafts, so the driver and driven bores may be different.
NM128 technical specifications
| Parameter | Value | Buyer note |
|---|---|---|
| Bore range | 18-55 mm | Confirm both finished bores independently. |
| Reference max speed | 5000 rpm | Compare with the actual operating speed. |
| Reference normal torque | 26.7 kgf·m | Use with the real machine duty, not as the only selection input. |
Specify both shaft interfaces
The coupling size does not define the finished bore. State the diameter, keyway and fit for Shaft 1 and Shaft 2 separately. If axial space is restricted, include the available hub envelope or an assembly drawing.
Operating information for selection
| Artículo | Qué confirmar |
|---|---|
| Driver | Motor, engine or other driver; include power and operating speed. |
| Driven equipment | Pump, compressor, gearbox, fan, mixer, conveyor or other machine. |
| Duty pattern | Continuous/cyclic service, starts, reversals and shock loading where present. |
| Environment | Unusual heat, contamination, oil/chemical exposure or outdoor conditions. |
| Replacement work | Existing marking, photos and measurable hub dimensions. |
Typical applications
NM couplings are commonly used on pumps, compressors, motor-to-gearbox drives, fans, blowers, mixers, conveyors and general industrial machinery. Application suitability depends on the complete duty and shaft interfaces.
Request a NM128 Quote
Send both shaft dimensions, operating speed, driven equipment and quantity. Include the existing coupling marking or drawing for replacement work.
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NM82 Flexible Jaw Coupling
NM82 NM flexible coupling with 10-32 mm bore range, 8000 rpm reference maximum speed and 5.0 kgf·m reference normal torque.
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