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Flexible Power Transmission

NM Couplings for Pumps, Compressors & Industrial Drives

Compare NM50–NM214 reference data, check both shaft interfaces and send an RFQ built around the machine duty. EVER POWER also supports related flexible and mechanical coupling families when NM is not the right construction.

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Nm CouplingVerified NM-family catalogue image
Model Matching

NM50–NM214 reference range

Use bore, speed and normal torque to narrow the size. Final machining and duty review still use the actual order data.

ModelBore RangeReference Max SpeedReference Normal Torque
NM50 7-19 mm 12500 rpm 1.3 kgfu00b7m View model
NM67 8-28 mm 10000 rpm 2.2 kgfu00b7m View model
NM82 10-32 mm 8000 rpm 5.0 kgfu00b7m View model
NM97 10-42 mm 7000 rpm 10.5 kgfu00b7m View model
NM112 14-48 mm 6000 rpm 16.7 kgfu00b7m View model
NM128 18-55 mm 5000 rpm 26.7 kgfu00b7m View model
NM148 22-65 mm 4500 rpm 41.7 kgfu00b7m View model
NM168 28-75 mm 4000 rpm 59.5 kgfu00b7m View model
NM194 32-85 mm 3500 rpm 112.0 kgfu00b7m View model
NM214 40-95 mm 3000 rpm 167.0 kgfu00b7m View model

Reference values support model matching. Finished bores, keyways and final application suitability are confirmed from the order data.

Product Families

Start with the coupling principle

Real product imagery from the authorized catalogue pack is used here after supplier identity was removed by tight product-only cropping.

Rubber Coupling

NM Rubber Elements

NM coupling rubber elements are replacement wear components for the flexible interface between the two hubs. Match the element to the actual NM size and in

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Jaw Coupling

Jaw Couplings

Jaw couplings use interlocking hub jaws with a flexible element between them. The uploaded source pack includes several jaw-coupling forms; exact torque an

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Pin-bush Coupling

Pin-Bush Couplings

Pin-bush couplings transmit torque through pins and resilient bushes. They are a practical alternative when the project is built around a pin-and-bush layo

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Pin Coupling

Pin Couplings

Elastic pin couplings are another resilient shaft-connection family represented in the authorized catalogue pack. Selection depends on the exact series, sh

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Disc Coupling

Disc Couplings

Disc couplings use metallic flexible elements rather than a rubber element. They are reviewed where the application calls for a different stiffness, temper

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Gear Coupling

Giunti a ingranaggi

Gear couplings use toothed engagement to transmit torque. They suit a different duty class from NM elastomer couplings and should be selected from the actu

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Roller-chain Coupling

Roller Chain Couplings

Roller chain couplings use chain engagement around toothed hubs. They are straightforward mechanical couplings, but correct chain size, hub dimensions, lub

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Tyre Coupling

Tyre Couplings

Tyre couplings use a compliant tyre-like element between flanges. They can provide useful flexibility where a larger resilient element is preferred, but th

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Buyer Decisions

Three numbers are only the start

An industrial coupling is an interface between two machines. The best RFQ describes both sides and the duty between them.

Flexible interface

The NM layout uses two hubs with a separate resilient element between their driving features.

Both bores matter

Driver and driven shafts may be different. State each bore, keyway and fit independently.

Duty before diameter

Speed, torque or motor data and the driven machine belong in the selection.

Machining is confirmed

The reference range helps model matching; the order details control finished bores and keyways.

Applications

Describe the drive train, not just the coupling

Pumps, compressors, gearboxes, fans, mixers and conveyors can place very different demands on the same shaft connection.

Pump Drives

Motor/pump shafts, speed, duty and service access.

Air Compressors

Cyclic duty, vibration context and drive arrangement.

Motor–Gearbox

Two shaft interfaces plus the machine behind the gearbox.

General Machinery

Custom machinery reviewed from the actual duty and drawings.

RFQ Process

From model guess to controlled order data

1

Share the duty

Driver, driven machine, speed and torque or motor information.

2

Check the size

Narrow the NM model from duty and bore limits.

3

Confirm interfaces

Both bores, keyways, fits, hub space and any drawing requirements.

4

Quote the batch

Sample, production or mixed-model quantities with any special process.

Primary Markets

International RFQs with real purchasing context

No invented local stock or office claims. Market pages focus on units, drawings, standards and industry context that can actually change an enquiry.

Insights

Selection and maintenance notes

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