Rigid & Special Couplings
AMN Internal Friction Safety Coupling
AMN Internal Friction Safety Coupling with model-specific technical data, engineering context and assembly drawing for preliminary selection.
Product Overview
AMN is an internal-friction safety coupling. Its table centers on minimum and maximum slip torque, permissible speed, driving and driven bores, chain number, D/MD dimensions, mass and inertia. The setting range—not only the shaft diameter—determines whether the coupling protects the machine as intended. The published model tables contain 6 size rows and provide torque values spanning 10–6300 N·m, permissible-speed values spanning 1000–3000 r/min, bore values spanning 16–160 mm. Use those values for preliminary comparison only; final materials, current standards, manufacturing details and operating suitability require confirmation from RONGXING DRIVE.
Key Features
- Internal friction overload-release arrangement
- Minimum and maximum slip torque are explicit values
- Driving/driven bore and chain data support installation
- The model data provides torque values spanning 10–6300 N·m, permissible-speed values spanning 1000–3000 r/min, bore values spanning 16–160 mm for a traceable preliminary comparison.
Typical Selection Context
- Overload-sensitive conveyors and process drives
- Machines where torque interruption is preferred to transmitting a damaging peak
Technical Specification
The following model tables are provided for preliminary comparison. Keep the relevant assembly drawing with the selected row.
| Model | Slip torque Tn N·m min/max | Permissible speed [n] r/min | Bore dimensions d₁ d₂ | Bore length L Y J₁ | D | D₁ | H | S | Mass kg | Coupling mass moment of inertia kg·m² |
|---|---|---|---|---|---|---|---|---|---|---|
| AMN1 | 10~50 | 3000 | 16~38 | 30~80 | 153 | 75 | 52 | 5 | 9.3 | 0.014 |
| AMN2 | 20~160 | 2800 | 25~48 | 44~112 | 195 | 85 | 66 | 5 | 18.1 | 0.047 |
| AMN3 | 71~500 | 1800 | 35~75 | 60~142 | 295 | 115 | 91 | 5 | 48.7 | 0.317 |
| AMN4 | 250~1600 | 1500 | 50~90 | 84~172 | 395 | 150 | 125 | 5 | 112 | 3.38 |
| AMN5 | 800~4000 | 1500 | 70~125 | 107~212 | 490 | 190 | 182 | 7 | 238 | 6.2 |
| AMN6 | 2500~6300 | 1000 | 95~160 | 132~302 | 590 | 240 | 213 | 33 | 490 | 14.5 |
Engineering Context
This model is best understood from its own construction: Internal friction overload-release arrangement; Minimum and maximum slip torque are explicit values; Driving/driven bore and chain data support installation Industry selection practice checks torque and speed together with the movement, shaft interface, installation envelope and maintenance conditions allowed by that construction.
Technical Notes
- Model symbols, units and empty or placeholder cells are shown as published.
- Dimension letters must be interpreted with the relevant assembly drawing.
- Published values support preliminary review and do not replace final engineering confirmation.
Assembly Drawing

Information Required for Selection
- Define required slip torque from normal and peak duty
- Confirm reset behavior, bore, speed, chain, guard and inertia
- Send the exact model row, assembly drawing and actual duty data with the inquiry.
Product FAQ
What is the key AMN specification?
The slip-torque range determines when torque transmission is interrupted; confirm the setting for the machine duty.
Does AMN require a reset procedure?
Confirm the actual release and reset arrangement with the supplied technical documentation.
Are the published values final ordering values?
No. They are preliminary engineering data; confirm the selected model, drawing, dimensions, materials, standard and suitability with RONGXING DRIVE.
Technical data is provided for preliminary selection. Confirm the final model, dimensions, materials, applicable standard and operating suitability with RONGXING DRIVE before quotation, manufacture or installation.