Industrial Flexible Couplings
NM Couplings Engineered For Reliable Industrial Power Transmission
Flexible jaw coupling solutions for industrial equipment, OEM projects and model-matching enquiries. Compare the NM range, check reference dimensions and send your shaft and duty data for review.
Who We Are
Ever-power NM Coupling Co., Ltd focuses on NM flexible jaw couplings and related industrial coupling enquiries. The site is structured for B2B buyers who need clear model matching, dimensional review, customized bores or keyways, and engineering-oriented RFQ support without unnecessary retail-style steps.
- NM models organized one model per product page
- Reference dimension and torque data visible before enquiry
- Custom bore/keyway and project marking review
- Application pages for pumps, compressors, agriculture and automation
Core Product Range
NM Spider Couplings
Core range with individual NM 50-NM 214 model pages and reference matching data.
Jaw Couplings
General jaw-coupling enquiry support for shaft connection and flexible-element projects.
Pin-Bush Couplings
RFQ-oriented overview for pin and bush coupling requirements.
Disc Couplings
Metallic flexible coupling enquiry route for higher-stiffness transmission projects.
Gear Couplings
Industrial gear-coupling requirements reviewed from drawings and operating data.
Other Couplings
Chain, torque-limiting and other power-transmission coupling enquiries.
NM Model Range
Product Advantages
Model pages keep bore, speed, diameter, spacing and weight data together for faster review.
Bore, keyway, fit and marking requests are handled as controlled specifications rather than assumptions.
RFQs can be prepared around actual equipment duty, motor data and shaft dimensions.
The NM layout uses two hubs and a separate flexible element between the jaws.
Samples, mixed-model orders and special-process projects can be evaluated before quotation.
Main Applications
Operating Principle
Two hubs connect the driver and driven shafts. Their jaws act through a flexible element, transmitting torque while the elastomer provides a compliant interface. Because selection is affected by torque, speed, shaft sizes, alignment condition and environment, the coupling should be checked against the complete duty rather than chosen from model diameter alone.
Key Parameter Range
| Model Range | Reference Normal Torque | Reference Max Torque | Reference Max Speed | Bore Range |
|---|---|---|---|---|
| NM 50 – NM 214 | 1.3 – 167.0 Kg*m | 2.3 – 300 Kg*m | 3,000 – 12,500 rpm | 7 – 95 mm |
Values are for model matching. Final production and application selection require confirmed specifications.
Selection Guide
- Confirm motor power and speed or actual transmitted torque.
- Provide both shaft diameters, keyway details and preferred fits.
- Describe machine type, start/stop severity, shock and duty cycle.
- Check available outside diameter, hub length and shaft separation.
- State temperature, oil/chemical exposure and other environmental limits.
- Release production against an approved drawing and final configuration.
Factory And Production Overview
Technical Resources
Use the technical resources area for the NM size reference, selection checklist, installation guide and troubleshooting notes. The files are designed to help prepare a complete RFQ and are not a replacement for the approved order drawing.
FAQ Quick Tips
Which NM model should I choose?
Start from operating torque or motor power and speed, then check both shaft sizes and the bore range. Use the application details to confirm the service margin.
Can bores and keyways be customized?
Bore, keyway and fit requests can be reviewed against hub geometry and the order drawing. Provide both shaft details in the RFQ.
Can I order samples?
New clients can request 1-5 pcs samples at sample pricing, subject to the selected model and process requirements.
Can different models be combined in one order?
Yes, mixed models can be evaluated together. The order reminder uses USD 1,500 as a practical mixed-model target.
What information speeds up quotation?
State product model, industry, application, both shaft sizes, speed, torque or motor power, quantity and any drawing or photos.
Request A Coupling Review
💡Quick Order Reminder Standard parts have baseline MOQ. High‑value large items are based on total order value. 1‑5pcs samples available for new clients at sample price. Mix‑match models to reach USD1,500. Special processing is limited by process batch size. 1‑2pcs orders come with higher cost. Special‑case projects are welcome for evaluation. For efficient quotation, please state in your email: product model, industry, application and key specifications.
