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nara coupling

NARA Autosys Co., Ltd.

NARA Autosys Co., Ltd. is a leading company in the power transmission sector, specializing in the design and manufacture of high-quality couplings and reducers. Established in 1979 as NARA Transmission Company, the company has evolved over the decades, adopting its current name in 2024. With headquarters in Busan, South Korea, NARA Autosys operates multiple facilities, including a second factory and a Seoul office, to serve a global clientele.


COMPANY OVERVIEW

NARA Autosys is committed to delivering superior products and services, striving to be an honest and reliable partner in the industry. The company's headquarters and first factory are located in Busan, South Korea. Its second factory is also located in Busan, while the Seoul office further supports operations and customer services across the country.


PRODUCT PORTFOLIO

NARA Autosys offers a comprehensive range of products designed to meet various industrial needs. Their product lineup includes:

  1. Precision Planetary Reducers

    • Engineered for high precision and efficiency, suitable for applications requiring accurate motion control.
  2. Smart Couplings

    • Designed to accommodate misalignments and reduce vibration, enhancing the longevity and performance of machinery.
  3. Flexible Couplings

    • Includes various types such as Panflex, Gear, Jaw, Drum, Chain, Flexible Flanged, and Brake Drum couplings, each tailored for specific industrial applications.
  4. Fluid Couplings

    • Ideal for smooth power transmission, protecting machinery from shock loads and torsional vibrations.

PRODUCT MODELS

NARA Autosys provides detailed catalogs for their products, outlining specific models and technical specifications. For instance, their Smart Coupling series includes:

  • SMD Series: Torsionally rigid servo disc couplings designed for high-precision applications.
  • SMJ Series: Flexible jaw-type couplings suitable for general-purpose use.
  • SMH Series: Flexible spiral helical-type couplings offering excellent flexibility.
  • SMO Series: Flexible Oldham-type couplings designed to accommodate large misalignments.

Each series comprises various models with specific torque ratings, dimensions, and performance characteristics to meet diverse industrial requirements.


TECHNICAL RESOURCES

NARA Autosys provides comprehensive technical data and catalogs to assist clients in selecting the appropriate products for their applications. These resources include detailed specifications, installation guides, and maintenance instructions, ensuring optimal performance and longevity of their products.


NARA Autosys Co., Ltd. continues to innovate and expand its product offerings, maintaining a strong commitment to quality and customer satisfaction in the power transmission industry.

NARA Autosys Co., Ltd. offers a wide range of coupling models, catering to various industrial needs. Below are the main types of NARA couplings and their specific models:

1. DISC COUPLING

Disc couplings consist of hubs, spacers, and disc packs, featuring high torsional stiffness and zero backlash, making them suitable for high-precision applications.

  • PA Type (4 Bolts)

    • Models: 405, 410, 415, 420, 425, 430, 435, 440, 445, 450, 455
  • PB Type (4 Bolts)

    • Models: 405, 410, 415, 420, 425, 430, 435, 440, 445, 450, 455
  • PA Type (6 Bolts)

    • Models: 601, 602, 603, 604, 605, 610, 615, 620, 625, 630, 635, 640, 645
  • PB Type (8 Bolts)

    • Models: 601, 602, 603, 604, 605, 610, 615, 620, 625, 630, 635, 640, 645

2. FLEXIBLE JAW TYPE COUPLING

This type of coupling has a simple structure and uses an elastic element compressed between two hubs to provide zero-backlash transmission. It is suitable for general-purpose use.

  • SMJ Series

    • Models: SMJ-20, SMJ-25, SMJ-30, SMJ-40, SMJ-55, SMJ-65, SMJ-80
  • SMJ-C Series

    • Models: SMJ-20C, SMJ-25C, SMJ-30C, SMJ-40C, SMJ-55C, SMJ-65C, SMJ-80C

3. FLEXIBLE SPIRAL HELICAL TYPE COUPLING

These couplings feature an integrated structure with long spiral slots, allowing for significant parallel and angular misalignment. They are ideal for high-precision applications, such as servo motors.

  • SMH Series

    • Models: SMH-12, SMH-16, SMH-19, SMH-22, SMH-25, SMH-29, SMH-32, SMH-34, SMH-39
  • SMH-C Series

    • Models: SMH-12C, SMH-16C, SMH-19C, SMH-22C, SMH-25C, SMH-29C, SMH-32C, SMH-34C, SMH-39C

4. FLEXIBLE OLDHAM TYPE COUPLING

This type of coupling features a simple structure and allows for considerable parallel and angular misalignment. It is particularly suitable for applications requiring electrical insulation.

  • SMO Series

    • Models: SMO-15, SMO-20, SMO-25, SMO-30, SMO-40, SMO-50
  • SMO-C Series

    • Models: SMO-15C, SMO-20C, SMO-25C, SMO-30C, SMO-40C, SMO-50C

nara coupling
NR-SS280


NR-SS280
NJ-075
NJ038  ,
NJ045
NJ055
SSM224
SUN 83
SUN 100
SS-5016
TCL350-2
TCL500-2
NR6018
CR3545
NR5018
NJ-060
NJ-045
Model:ML-7000
SUN 92(38-22)
2090SH
SSM180
SSMH280-S
PA615
TYPE:DER MORTICE LOCK
NR 12022
CR6022
SUN92(38-22)
NR-SS280(ADD DRAW’G)
SSM280
NJ028
NJ028 ,
KC-5016NR5016
NR5016
NJ045ф38×ф25 80*101
SSM160
SSM240
19CKRG
ф60×137 19CKRG
ф80×172/ф60×137 19CKRG
NR-SSM-250
19CKRB 75*140/160*140
19CKRB 75*140/55*82
RF-26S
SSM140
SSM250
19CKRB-75-140/55*82
19CKRB-75-140/60*140
19CKRB-75-160/80*140
 NR-SS280
SUN83
NR-SSM-100
SSM100
19CKRB WITH BRAKE DRUM
NR12022
NARA-SSM-315
CR12018
CR8022
CR8018J
NR5015
NR4016
NR-PA-435
NJ028 55*75MM
NA5016
SUN 92 (38-22)
TRPE:DER MORTICE LOCK
ML-7000 HANDLE:HORN LEVER
NJ38RUB
NJ45RUB
NJ60RUB
NJ038(D1=38mm,D2=38mm)
NJ045(D1=26mm,d2=42mm)
ZF-2 1/2
NF-2 1/2
 NR6018
NR-6018
CR12022H
NR12022H
NVCH1000(Motor:1250KW*1000rmp)
NVC875(Motor 11250*1450rmp)
NCV875(Motor:2000kw*1450rmp)
NR-DR-530 :220mm  :DR53000
NR-DR-450 :160mm  :DR45000
SSM280  EXCLUDE INNER BORE & KEY WAY MACHINING
NR16022
NR16018
NR-SS140
NR-SS224
NR 6022
NR8018
NARA  SSM280
SSMB250
SSMB224
 SUN83
SSMB250
SSMB224
NR 8018
CR5018
NR5106
D/N:RM-300S-PSSRI/N:15 NPD-14WLLW-LG 150KW-GM 8702NPD-14WLLW-LG-O
D/N:HA20385FI/N:1 NPD-14WLLW-LG 150KW-GM 8702NPD-14WLLW-LG-O
 D/N:NPC-11WLLW-LG-01/N:23 NPC-11WLLW-LG 90KW-GM 8702NPC-11WLLW-LG-O
 NJ045
NJ060
NJ075 66 76mm 18 mm
NJ075
NR8022
SSM-315
NR6022
JAW
 NJ055
YOXIIZ650
YOXIIZ560
YOXIIZ500
21CKRB 132KW 4P
19CKRB
27CKRB
19CKRB 90KW 4P
21CKRB 185KW 4P
NJ028
SEM160
NR-4016
:SSM-315
:NR 12022
PB 615
PB 610
SEM125
CEM 500
NJ028