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Primary NM Coupling

NM214 Flexible Jaw Coupling

NM214 NM flexible coupling with 40-95 mm bore range, 3000 rpm reference maximum speed and 167.0 kgf·m reference normal torque.

NM flexible coupling product
Bore range40-95 mm
Reference max speed3000 rpm
Reference normal torque167.0 kgfu00b7m

NM214 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.

NM214 technical specifications

Parameter Value Buyer note
Bore range 40-95 mm Confirm both finished bores independently.
Reference max speed 3000 rpm Compare with the actual operating speed.
Reference normal torque 167.0 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

Item What to confirm
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 NM214 Quote

Send both shaft dimensions, operating speed, driven equipment and quantity. Include the existing coupling marking or drawing for replacement work.

Request NM214