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NARA Torsionally Elastic Couplings – JAW, Flexible Flange, Highly Flexible
- Absorbs shock, damps vibration, compensates offset and angular misalignment
- JAW: low inertia; yellow TPU 98 Shore A element, electrically insulating and heat-blocking
- Flexible Flange: high safety, low torsional backlash
- NARA (Korea) products – supplied and quoted by FEYANA
NARA torsionally elastic couplings use elastic elements for shock absorption and vibration damping, giving stable power transmission. Ranges: JAW, Flexible Flange and Highly Flexible couplings.
FEYANA supplies products of NARA Autosys (Korea), a power-transmission manufacturer founded in 1977 in Busan and certified to ISO 9001, ISO 14001 and ISO 45001.
Product range
| Series / model | Description |
|---|---|
| JAW – NJ | Cast iron or steel hub; offset 0.17 – 0.64 mm, angular 0.9 – 1.3° (1500 rpm); -30 to +80 °C |
| JAW – NJS | Medium to heavy duty, steel hub, optional split hub; fail-safe (drive maintained if element fails) |
| JAW – NJW / NJD | Brake drum (NJW) / brake disc (NJD) mounting for friction brake systems |
| Flexible Flange – NFF / NFFS | Elastic bushings; NFF cast iron hub 200 – 52,000 Nm; NFFS special steel hub 260 – 67,500 Nm, shrink fit possible |
| Flexible Flange – FFBD | Brake drum type 15.7 – 15,700 Nm |
| Highly Flexible – HFS / HFF | Elastic rings damp vibration; HFS shaft-to-shaft (fail-safe available); HFF flange connection |
Key features
- Absorbs shock, damps vibration, compensates offset and angular misalignment
- JAW: low inertia; yellow TPU 98 Shore A element, electrically insulating and heat-blocking
- Flexible Flange: high safety, low torsional backlash
- Highly Flexible: suits fluctuating torque and frequent reversing
Main specifications
| Item | Specification |
|---|---|
| JAW rated torque | 10 – 8,550 Nm |
| Flexible Flange rated torque | 16 – 67,500 Nm |
| Highly Flexible rated torque | 1,600 – 45,000 Nm; -40 to +80 °C; offset 2.2 – 5.5 mm |
Applications
- Hydraulic and industrial pumps, industrial equipment, steelmaking systems
- Injection moulding machines, wind generators (JAW)
- Gear shafts, high-vibration duty, heavy equipment, ventilation systems
- Reciprocating compressors, conveyors, excavators, crushers
Selection & quotation
Data summarised from NARA documentation and subject to change by the manufacturer. Send FEYANA your power, torque, speed, mounting and duty conditions for a model recommendation. Price: on request.
Model selection & quotation: Zalo/Hotline +84 988 641 591 · WhatsApp +84 988 641 591 · Email sales.00@feyana.com
FAQ
Who is NARA Autosys?
NARA Autosys is a Korean power-transmission manufacturer founded in 1977 in Busan, certified to ISO 9001, ISO 14001 and ISO 45001.
What data is needed to select the NARA Torsionally Elastic Couplings?
Power or torque, speed, connection and mounting, application and duty conditions.
What is the price?
Quoted by model and configuration: sales.00@feyana.com or WhatsApp +84 988 641 591.
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