Flexible Shaft Couplings（Allowable Torque Range：5.01~10.00）

Servo Flex SFC

MIKI PULLEY

· SFC Model for Servo Coupling
· Application: Servo Motor / Stepping Motor / Encoder.
· Body material: Using aluminum clad in a clear anodized finish.
· Disc members are made of 304 stainless steels.
· Single and double element configurations are available.
· Bores can be configured with clamp, taper-lock, or keyed styles.
· Maximum Rotational Speed Range: 4001 ~ 10000 (r/min).
· Maximum allowable torque: 250 Nm.
· Bore size range: 3 mm to 45mm.
· Backlash: Zero.
· Operating Temperature Range: -30 to 100 °C
· Couplings are precisely assembled using high strength, corrosion resistant fasteners.

CAD ：

2D / 3D

Star Flex ALS-R

MIKI PULLEY

Element hardness 97JIS A used, designed to use preliminary compression with no backlash. Supports a wide range of applications, from simple servo to general purpose motor with high torque.

[Features]
· Polyurethane elastomer used for element. So, the transmission torque is more than twice that of conventional jaw coupling.
· Design to distribute pre-compression, and so can be used with no backlash. (ALS-Y/R type)
· Power transmission through polyurethane elastomer with rubber elastic force. It has excellent vibration and impact absorption.

CAD ：

2D

Jaw Couplings - Clamping

MISUMI

"By changing the types of spacer, allowable torque and misalignment allowable value can be selected."

CAD ：

2D / 3D

Disc Type Coupling (SD Series)

SUNGIL

[Features]
・High torsional rigidity, excellent positioning power
・Used for high precision position control system
・Low moment of inertia
・Semi-permanent life
・Deflection, eccentricity accepted
・The characteristics of positive / reverse are the same
・Single disc, double disc type (can not accommodate eccentric type in case of single type)
•Related Keywords: Sungil Machinery, Standard Coupling, Coupling / Shaft Joint

CAD ：

2D / 3D

Disc Couplings - Clamping/ For Servo Motors

MISUMI

Disk type flexible coupling.
[Features]
· High torsional rigidity, high torque, backlash "0", short type.
· Compact design with short overall length.
· Stainless steel disc allows eccentricity, declination and end play.
[Use]· For actuators/XY stages, etc.

CAD ：

2D / 3D

Jaw-Shaped Coupling - Clamping Type - [SJC, SJCA, and SJCB]

SUNGIL

Brand-name products provided by MISUMI-VONA are offered based on customers' needs that selected from products of Asian manufacturers carefully. Please select an item according to the user's various usage scenes. A Korean manufacturer established in 1991. Korean coupling market share is 70%, with over 3,000 customers. No1 maker. Rich selection, and short lead-times.

CAD ：

2D

Disc Couplings - Ultra High Torque Clamping (Double Disc) for Servo Motors

MISUMI

· Universal type resistant to small misalignment
· Multiple disc materials support a wide range of uses
· Polyimide - Demonstrates outstanding flexibility and low reaction force even if misaligned, and causes no phase or torque fluctuation
· Well-balanced versatile type featuring excellent carbon FRP-flexibility, transmission torque, and torsional rigidity
· Stainless steel flat spring (SUS) - Inferior flexibility, but high transmission torque and torsional rigidity, so it is ideal for highly responsive servo systems

CAD ：

2D / 3D

Jaw & Spider Couplings - Set Screw

MISUMI

"Main body and the spider are of smooth blind fit, making for easy installation, removal and maintenance."

CAD ：

2D / 3D

Star Flex ALS-B

MIKI PULLEY

Element hardness 97JIS A used, designed to use preliminary compression with no backlash. Supports a wide range of applications, from simple servo to general purpose motor with high torque.

CAD ：

2D

Disc Coupling Clamping Type (Double Disc) SDWC

SUNGIL

Disc type coupling with low moment of inertia and stable even at high speed.
[Features]
·It has a shape with high torsional rigidity and is excellent in oil and chemical resistance.
·Semi-permanent life with zero backlash.
·Absorbs declination, eccentricity, and end play misalignment.
・ The characteristics of forward/reverse rotation are the same and no repair is required.
[Applications]
·It can be used for servo motors, stepping motors, precision motors, etc.
·Ideal for high-precision encoders, dynamometer drivers, high-speed, high-precision position control systems, centrifuges, copiers, etc.

CAD ：

2D / 3D

Jaw Couplings - Set Screw

MISUMI

"By changing the types of spacer, allowable torque and misalignment allowable value can be selected."

CAD ：

2D / 3D

MOM Flexible Coupling - Oldham Type

NABEYA BI-TECH

[Features]
· Oldham type flexible coupling.
· FCD400 used in spacer.
· Ideal for low speed / high torque specifications.
· Grease applied between hub and spacer to prevent burn-in.
· Due to hub and spacer slip, large eccentricity / deflection angles are allowed.
· The protrusion (resin pin) provided on the spacer allows the angle of deviation without difficulty.
· Long-term maintenance-free.
· Grease accumulated in the grease hole gradually leaks during operation, to maintain long-term lubrication performance.

CAD ：

2D / 3D

XHW/XHW-L Flexible Coupling - Disk Type

NABEYA BI-TECH

Type: Disc type
· Main body material: A2017
· Class coupling: body
· Disk part material: SUS304
· Structure: Clamping type

CAD ：

2D / 3D

Slit Type Coupling (SRB Series)

SUNGIL

[Features]
・Zero backlash
・Eccentricity, declination, complete end-play absorption (spring of Radical Beam Sit)
・High rigidity aluminum alloy (AL 7075-T6)
・High torsional stiffness and allowable torque
・Low moment of inertia, stability at high rotational speed
・ Static reversal is the same
・Oil resistance, chemical resistance
•Related keywords: Sungil Machinery, Standard Coupling, Coupling / Shaft Joint

CAD ：

2D / 3D

Disc Coupling Clamping Type (Double Disc) SDWA

SUNGIL

Structure that adjusts axis misalignment by deflection of a thin metal disc. Large torque transmission, even at high-speeds. Simple structure that is easy to remove. Clamping type product. SUNGIL The company is a Korean manufacturer established in 1991. Korean coupling market share is 70%, with over 3,000 customers. No1 maker. Rich selection, and short lead-times.

CAD ：

3D

MJT Flexible Coupling Disk Type

NABEYA BI-TECH

High torque, vibration absorption.

[Features]
· Joyped flexible coupling.
· The tight fit allows transmission of zero backlash at low torque.
· Easy fit has easy assembly / disassembly of hub.
· Excellent flexibility.
· In addition to eccentricity and angle deviation, also absorbs torsional vibration.
· Electrically insulated.
· 4 types of sleeve hardness.
· Select according to usage conditions, such as torque misalignment.

CAD ：

2D / 3D

MOR Flexible Coupling - Oldham Type

NABEYA BI-TECH

[Features]
· Oldham type flexible coupling.
· Due to hub and spacer slip, large eccentricity / deflection angles are allowed.
· Eccentric reaction force generated by misalignment is small, reducing the burden on the shaft.
· Easy to assemble with a simple structure

CAD ：

2D / 3D

XGT/XGL/XGS Flexible Coupling - High-Damping Capacity Rubber Type

NABEYA BI-TECH

Vibration absorption, high torque, high responsiveness, backlash "0"

[Features]
· Rubber type optimally designed for actuator flexible coupling, with high damping capacity.
· High precision positioning in a short time is possible.
· Completely unified structure, coupling molded hubs on both sides with high damping capacity rubber.
· High damping capacity shape of the rubber is designed by analysis, using the latest finite element method to achieve high torsional rigidity, and high torque.
· In addition, by concentrating the stress near the inner diameter of the clasp uniformly throughout, a long-life design is achieved.

CAD ：

2D / 3D

Disc Couplings - Clamping

MISUMI

Backlash "0" coupling.
[Features]
· Disk type flexible coupling.
· Stainless steel disc allows eccentricity, declination and end play.
[Application]
· For XY stages, transfer devices, etc.

CAD ：

2D / 3D

Oldham Couplings - Clamping / Set Screw

MISUMI

"Have the spacer protruded to reduce load applied to the shaft, by naturally tolerating large angular/lateral misalignment."

CAD ：

2D / 3D

OLDHAM Type Coupling (SOH Series)

SUNGIL

[Features]
・Electrical insulation effect, non-magnetic
・Absorption of excellent eccentricity and declination (slip phenomenon of middle disc and rounding effect of hub)
・Easy to assemble and replace
・ Minimization of axial load during unalignment
・Free flow, low bearing load
•Related Keywords: Sungil Machinery, Standard Coupling, Coupling / Shaft Joint

CAD ：

2D / 3D

Slit Couplings - Clamping, Short/Long

MISUMI

"Because backlash is 0, it is suitable for applications where rotation accuracy is required."

CAD ：

2D / 3D

Spa Flex AL

MIKI PULLEY

Type using aluminum alloy for hub material and weight reduction, and employing nitrile rubber as buffer material.

[Features]
· Simple structure composed of two hubs and cushioning material (spider), uses aluminum alloy for hub, and lightweight.
· Coupling can be connected / separated only by moving in the axial direction.
· Because aluminum alloy is used for hub material, it is light weight with low inertia.

CAD ：

2D

MST/MSTS Flexible Coupling Slit Type

NABEYA BI-TECH

Backlash "0." Design of aluminum alloy slit pattern changed to improve performance.

[Features]
· Metal spring coupling with perfectly integrated structure, with slit in cylindrical material.
Leaf spring formed with a slit allows eccentricity, angle deviation, and end play.
· 2 kinds available: aluminum alloy / all stainless steel type.
· Wide range of outer diameters, ø8 to ø63

CAD ：

2D / 3D

Disc Couplings Servo - Fine, for Servo Motors (High Positioning Accuracy)

MISUMI

[Features]It is especially suitable for equipment that requires high precision and for use in clean environments.

CAD ：

2D / 3D

Bowman Flexible MM

MIKI PULLEY

· MM Models - Metal Coil Spring Couplings BAUMANNFLEX.
· MM Models is a standard coupling type.
· Pilot bore/added work ranges: φ3 ～ 35 mm.
· Hub material: steel SUM24L and stainless steel SUS303.
· Metal coil spring material: Piano wire and stainless steel.
· Hexagon head set screw material: Alloy steel for machine structural use Surface finishing: Black coating.
· MM Models Allowable Angular misalignment 3 degree.
· Application: Vacuum equipment, medical equipment, printing machine.
· MM Models Max. nominal torque: 220 [N.m].
· MM Models Operating temperature: BAUMANNFLEX: -30 to 100 °C

CAD ：

2D

Star FlexALS-Y

MIKI PULLEY

· ALS-Y models High performance STARFLEX PULLEY MIKI.
· Shaft Tightening Method: Set Screw Type
· Application: Encoder, Stepping Motor.
· Hub material: Aluminum Alloy.
· Spacer Element material: Polyurethane elastomer.
· Accessories: Hexagon head set screw material: Alloy steel use Surface finishing is Black coating.
· Nominal torque: : 1.2 to 310 [N.m].
· Operating Temperature Range: -30 to 80 °C
· These are JIS A tight-fit models that have a shore hardness of 90 and are equipped with a good balance of torque transmission performance, flexibility, and responsiveness.

CAD ：

2D

Oldham Couplings - Clamping

MISUMI

Hub and spacer can be separated for easy assembly.

CAD ：

2D / 3D

Disc Couplings Servo - Fine, for Servo Motors (High Rigidity)

MISUMI

[Features]·This coupling is suitable for devices that use servo motors.

• Volume Discount

CAD ：

2D / 3D

Slit Couplings - Set Screw, Short / Long

MISUMI

"Because backlash is 0, it is suitable for applications where rotation accuracy is required."

CAD ：

2D / 3D

MJB Flexible Coupling - Jaw Type (Bushing)

NABEYA BI-TECH

· Various jaw type maximum speed range (r/min): 10,001 to 78,000
· Main body material: S45C
· Class coupling body
· Eccentricity range tolerance (mm): 0.02 to 0.2
· Deviation angle tolerance (deg): 1
· Buffer part material: polyurethane
· Structure: Bushing type

CAD ：

2D / 3D

Oldham Coupling -Clamping Short Type - [SOHM-16C]

SUNGIL

Coupling with a relatively large misalignment tolerance. Clamping type product. SUNGIL The company is a Korean manufacturer established in 1991. Korean coupling market share is 70%, with over 3,000 customers. No1 maker. Rich selection.

L/SS Flexible Coupling Joe - Max Standard Type

NABEYA BI-TECH

High torque. Spider is compressed and torque is transmitted.

[Features]
· Joyped flexible coupling.
· Spider is compressed and torque is transmitted.
· A smooth, blind fit between hub and spider.
· It is easy to install and remove.
· 2 types of hubs and 3 kinds of spiders.
· Choose to suit application.
· Smooth fitting of hub and spacer.
· Even if the motor is not visible, and the coupling is difficult to see, can be assembled by feeling.
· Maintenance also easy.

CAD ：

2D / 3D

XGT2/XGL2/XGS2 Flexible Coupling, High Damping Capacity Rubber Type

NABEYA BI-TECH

High damping capacity rubber-type standard coupling.
[Features]
· High-damping flexible coupling surpassing XGT, XGL and XGS.
· Aluminum hubs on both ends are molded with vibration-proof rubber in a completely integrated structure.
· Optimum design of damping and rigidity achieves higher servo motor gain, shortening settling time.
· Effective in suppressing speed irregularities during stepping motor drive.
· Suppresses residual vibration upon positioning and contributes to improved productivity and quality.
· Superior heat resistance, oil resistance and chemical resistance.
[Applications]
· Semiconductor manufacturing machinery, mounting machinery, machine tools, packaging machinery, etc.

CAD ：

2D / 3D

Coupling Oldham set screw type

MISUMI

Hub and spacer can be separated for easy assembly.

CAD ：

2D / 3D

MDW Flexible Coupling Disk Type

NABEYA BI-TECH

High torsional rigidity, high response, backlash "0"

[Features]
· Disc type coupling.
· Stainless steel disk allows eccentricity, angle deviation, and end play.

CAD ：

2D / 3D

Oldham Coupling - Clamping Type -

SUNGIL

Brand-name products provided by MISUMI-VONA are offered based on customers' needs that selected from products of Asian manufacturers carefully. Please select an item according to the user's various usage scenes. A Korean manufacturer established in 1991. Korean coupling market share is 70%, with over 3,000 customers. No1 maker. Rich selection, and short lead-times.

CAD ：

2D / 3D

Oldham Couplings MJC series　

MIGHTY

· Flexible Shaft Coupling - Oldham, Clamping, MJC Series
· Oldham Couplings are 3-part couplings consisting of 2 hubs and 1 torque disc.
· 2 hubs materials are Aluminum Alloy and Free-cutting brass.
· 3 methods surface treatment solution for hubs are non-chromium chemical conversion treatment, Anodization and Electroless nickel plating.
· The torque disc material is Polyacetal.
· Shaft Fastening Method: Clamp locking type.
· Application: Encoder, Servo Motor, Standard, Stepping Motor.
· Allowable Angular misalignment 1 degree.
· All through hole hubs MJ-50 and 57 with keyways standard (JIS B13101-1996)

Couplings/High Torque Disc Clamping (Single Disc) 

MISUMI

· Universal type resistant to small misalignment
· Multiple disc materials support a wide range of uses
· Polyimide - Demonstrates outstanding flexibility and low reaction force even if misaligned, and causes no phase or torque fluctuation
· Well-balanced versatile type featuring excellent carbon FRP-flexibility, transmission torque, and torsional rigidity
· Stainless steel flat spring (SUS) - Inferior flexibility, but high transmission torque and torsional rigidity, so it is ideal for highly responsive servo systems

CAD ：

2D / 3D

Step Flex STF

MIKI PULLEY

Newly developed multi-layer rubber element achieves high attenuation and low recoil force. Couplings with high damping performance. For servo and stepper motors.
Integrated structure with no backlash that adopts HNBR for the power transmitting element. Damps vibration more quickly than a flexible coupling using metal for the elastic part.
This makes it possible to inhibit resonance, a phenomenon which tends to occur with stepper motors, etc. Helps avoid resonance over a wide range of operating speeds. Provides stable high speed control.
Furthermore, by using a layered rubber element sandwiched between HNBR with different levels of hardness, the shaft reaction force due to misalignment is reduced. The burden on the counter shaft and bearing can be reduced drastically.