Flexible Shaft Couplings（Product Category：Coupling Main Body Page3）

Disc Couplings - High Rigidity (O.D. 65), Keyless Clamping, for Servo Motors

MISUMI

A highly rigid flexible coupling by devising the disc fastening part.
[Features]
· Standardized 4 model 45 sizes from shaft diameter φ12 (diameter 12 mm) to φ60 (diameter 60 mm).
· High twist rigidity due to the disc fastening part.
· Allows declination and end play.
· The moment of inertia is smaller than that of other companies.
[Use]
· Machine tools, precision stages, etc.

CAD ：

2D / 3D

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

MOL Flexible Coupling - Oldham Type

NABEYA BI-TECH

High torque, small eccentric reaction force, large permissible misalignment large, with vibration absorption.

CAD ：

2D / 3D

Precision Shaft Fitting, Leaf Spring Type, TCS-B Series

SAKAI MANUFACTURING

Single leaf spring type, high torsional rigidity type

[Features]
· High torsional rigidity due to single type of original leaf spring.
· Control responsiveness improved.

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.

Jaw Coupling -Set Screw Type- [SJC-14-GR]

SUNGIL

Jaw type coupling with excellent backlash durability and high torsional rigidity.
[Features]
·No maintenance, no lubrication, elastic spider is Pitload's shock-reducing shaft coupling.
·Same forward/reverse rotation characteristics, good oil resistance and electrical insulation.
·Balancing is optimized by machining the inner diameter of the hub.
[Applications]
·Ideal for transmission equipment, position control/positioning tables, robot systems, medical equipment, and servo motors.

CAD ：

2D

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.

Disc Couplings - High Rigidity (O.D. 87), Keyless Clamping

MISUMI

A highly rigid flexible coupling by devising the disc fastening part.
[Features]
· Standardized 4 model 45 sizes from shaft diameter φ12 (diameter 12 mm) to φ60 (diameter 60 mm).
· High twist rigidity due to the disc fastening part.
· Allows declination and end play.
· The moment of inertia is smaller than that of other companies.
[Use]
· Machine tools, precision stages, etc.

CAD ：

2D / 3D

Double Disc Type Flexible Coupling AHD

ISEL

High rigidity due to ingenuity of the disc fastening part.

[Features]
· 33 standardized shaft diameter sizes ø12 to ø48.
· High rigidity due to ingenuity of the disc fastening part.
· Allows eccentricity, deflection angle and end play

CAD ：

2D / 3D

MSF Flexible Coupling-Serration Type

NABEYA BI-TECH

Simple structure, low-cost.

[Features]
· Transmission of torque by engagement of serrations.
· Simple structure flexible coupling.
· Excellent flexibility.
· Acceptable eccentricity / large deviation angle, with torsional vibration also absorbed.

CAD ：

2D / 3D

XSTS/XWSS Clean, Vacuum, Heat-Resistance Support Coupling - Slit Type (SUS316L)

NABEYA BI-TECH

Low particle. Chemical resistant SUS316L made. Backlash "0"

CAD ：

2D / 3D

Super zero Oldham couplings series SCZ type stainless steel.

NIHON MINIATURE

Stainless steel hub (boss part), with zero backlash. Stronger and more compact coupling.

[Features]
· Super zero Oldham coupling achieves zero backlash, with improved machining accuracy
· Stronger and more compact design, that can now be used with high precision equipment impossible until now.
· Stainless steel series added, becoming 4 series, with further improvements.
· Materials used are, engineering plastic for spacer, and stainless steel SUS303 for hubs, aluminum series uses aluminum alloy (alumite surface treatment).
· Easy to handle coupling, with low moment of inertia, large swing rigidity, good electrical insulation, and maintenance-free, easy assembly.
· Two types of super zero Oldham coupling, with set screw or collet shaft fixing methods both available, that can be freely combined.
· Stainless steel has no. 4 model number, and the aluminum series has no. 10 model number.
· Stocking stainless steel series from ø4 to ø28, aluminum series from ø3 to ø40 in millimeter and inch system of inner diameter finish.

CAD ：

2D

Precision Shaft Fitting, Leaf Spring Type LAS-C Series

SAKAI MANUFACTURING

Non-backlash structure with excellent control response

[Features]
· Suitable for control responsiveness and accuracy improvement, through synergistic effect of high rigidity and double bolt clap specification, and non-back side structure.

CAD ：

2D / 3D

Precision Axial Fitting-Spring Type, LCS-T7 Series

SAKAI MANUFACTURING

[Features]LCS-T7 series precision shaft fitting leaf spring type that achieves high stiffness and high torque rotation transmission by integrating the flexible part and the shaft coupling part. [Applications]It can be used for servo motors, pulse motors, etc.

CAD ：

2D / 3D

Precision Shaft Fitting, Leaf Spring Type TCD-B Series

SAKAI MANUFACTURING

Compact, low price type

[Features]
· Torque transmission capability has been improved with unique leaf spring.
· Effective for downsizing and cost reduction.

CAD ：

2D / 3D

K Flex Couplings A Model (One-side Adapter Hub Model)

KAYSEVEN

High torque transmission, energy saving design, large allowable misalignment, no backlash product. Recommended for pairing NC manufacturing machinery etc. with servo motors.

Metal Coupling for Encoder

KOYO ELECTRONIC

Use together with rotary encoder

Disc type coupling Set screw type (double disc) Body aluminum

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

Long Disc-Shaped Coupling, Set Screw Type (Double Disc)

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 ：

3D

Long Disc-Shaped Coupling, Clamping Type (Double Disc)

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 ：

3D

Servo FlexSFH

MIKI PULLEY

Large type metal plate spring coupling.

MOS Flexible Coupling - Oldham Type

NABEYA BI-TECH

Small eccentric reaction force, large permissible misalignment large, with vibration absorption.

CAD ：

2D / 3D

Bellows coupling series NA type stainless steel

NIHON MINIATURE

Bellows, hub part (boss part) use stainless steel. Fixed by special weld. Bellows coupling with high twist rigidity.

[Features]
· The bellows coupling of the NA series is made of all stainless steel.
· Bellows use stainless steel (SUS304L), metal fittings stainless (SUS303) used, and are fixed by special welding
· Precision coupling with higher rigidity compared to NB series, able to withstand high-speed and high-torque.
· Plus, as stainless steel, has excellent corrosion resistance.
· Model no. is 6 for standard, and for non-standard there are 2 model numbers.
· Shaft diameters from 3 mm to maximum 15 mm, constantly stocked with all shaft diameter combinations of millimeter and inch sizes (inside diameter tapping processed).

CAD ：

2D

Precision Shaft Fitting, Leaf Spring Type, LCS-B Series

SAKAI MANUFACTURING

Streamlined body with low inertia and high rigidity specification

[Features]
· Streamlined body with low inertia and high rigidity specification.
· Suitable for improving control response.

CAD ：

2D / 3D

K-7 coupling MD series

KAYSEVEN

· K-7 coupling MD series - Oldham Type.
· MD series Oldham Couplings structure Consists of three parts :2 hubs and 1 torque disc.
· Application: Robot, Various pumps, Blower, Printing machine, NC-MC machine tool and Conveyor.
· As K-7 standard specifications, 12 MD types from MD-35 to MD-160M ​​are available.
· MD series Body material is aluminum alloy.
· Torque disc material: Polyacetal resin.
· Torque discs are made of resin and do not need to be lubricated.
· Operating environment Temperature Range: -40 to 85 °C
· Assembly and replacement of intermediate torque transmission members are easy.

K-7 coupling RD series

KAYSEVEN

Compact, simple structure, with easy to absorb eccentricity and centering. Widely used in robots, resin molding materials, conveying equipment, printing machines, machine tools, and pumps etc.

[Features]
· Compact and simple structure.
· Like the MD series, it consists of three parts, the hub parts and an intermediate torque transmission part.
· Oldham type coupling absorbs eccentric misalignment.
· Dial gauge is not necessary for centering work at installation.
· Visual observation is sufficient.
· The intermediate torque transmission part is made of resin, and so does not require lubricant.
· No reactive force due to misalignment, contributing to energy conservation, with assembly and installation easy.
· Simple structure, and even in the event of damage to the intermediate transmission part, power transmission is possible.
· Thermally and electrically insulated by the intermediate transmission part.
· Friction joint employed for fastening to shaft.

Disc-Shaped Coupling, Set Screw Type (Single Disc)

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

Cushion Type Coupling QJ/QJU

ADVANCED

· Zero Backlash
· Absorbing Vibration and Noise
· The cushion has a pipe shape, high flexibility and long life
· A cushioning material with either high or low torsional rigidity selectable.
· Hub uses an aluminum die cast material for low moment of inertia

LS/LSS Flexible Coupling - JawMax In-Shear Type

NABEYA BI-TECH

A coupling with high torque and easy maintenance.
[Features]
· A flexible coupling that allows the incear spider to be wound around the hub claws from the outside.
· Consists of 4 parts: 2 hubs, incear spider and retainer.
· Insear type can be installed/removed once the device is attached to the device, and then the device is not moved.
· Protects the device from overload.
· If an overload is applied, the incear spider will be damaged and the motor side and driven side will be disconnected.
[Applications]
· For spiral pumps/fans/blowers/decelerators, etc.

CAD ：

2D / 3D

XBS/XBSS Flexible Coupling Single Disk Type

NABEYA BI-TECH

High torque, high torsional rigidity, and high responsiveness. Backlash "0"

[Features]
· Hex socket head cap screws included with all products.
· Appropriate shaft diameter recommended dimensional tolerance is h6 and h7.
· When attaching to a D cut shaft, pay attention to the position of the D cut surface of the shaft.

CAD ：

2D / 3D

MHW Flexible Coupling Disk Type

NABEYA BI-TECH

Backlash "0"

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

CAD ：

2D / 3D

Bellows coupling series NB type phosphor bronze product

NIHON MINIATURE

Low cost bellows coupling, using phosphor bronze for bellows, and brass for boss part. Nickel plating treatment.

[Features]
· NB series bellows coupling is made with phosphor bronze (PBP3-0), with brass bracket (BsBM) used, both fixed with solder.
· No backlash, low inertia, high torsional rigidity, compact coupling with flexibility.
· Model number is no. 4, with shaft diameter from 2 mm to 10 mm, and always in stock with all shaft diameter combinations (inner diameter tapping processed).

CAD ：

2D

Super zero Oldham coupling series MMZ type aluminum alloy products

NIHON MINIATURE

Use the set screw to fix the shaft. While compact, can handle large shaft diameters.

[Features]
· Super zero Oldham coupling achieves zero backlash, with improved machining accuracy
· Stronger and more compact design, that can now be used with high precision equipment impossible until now.
· Stainless steel series added, becoming 4 series, with further improvements.
· Materials used are, engineering plastic for spacer, and stainless steel SUS303 for hubs, aluminum series uses aluminum alloy (alumite surface treatment).
· Easy to handle coupling, with low moment of inertia, large swing rigidity, good electrical insulation, and maintenance-free, easy assembly.
· Two types of super zero Oldham coupling, with set screw or collet shaft fixing methods both available, that can be freely combined.
· Stainless steel has no. 4 model number, and the aluminum series has no. 10 model number.
· Stocking stainless steel series from ø4 to ø28, aluminum series from ø3 to ø40 in millimeter and inch system of inner diameter finish.

CAD ：

2D

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

Disc-Shaped Coupling - Clamping Type (Single Disc)

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 - High Rigidity, Set Screw

MISUMI

Aluminum bronze is used for spacer and it has allowable torque twice as much as Resin Type.

CAD ：

2D / 3D

Flexible coupling E

ISEL

No backlash in the direction of rotation. Divide structure for easy assembly.

[Features]
· Standardized 36 type models from shaft diameter ø5 to ø32.
· By applying pressure to the resin part, there is no backlash.
· High torsional rigidity.
· Easy assembly structure

CAD ：

2D / 3D

MOHS-C Clean, Vacuum, Heat-Resistance Support Coupling - Oldham Type (Vespel) - Clamping Type

NABEYA BI-TECH

Heat resistant. Operating temperature range -20°C to 200°C. Clean. Large allowable misalignment.

CAD ：

2D / 3D

Super zero Oldham coupling series MCZ type aluminum alloy products

NIHON MINIATURE

Type that fixes the shaft with tightening of a set screw and clamp. Larger shaft hole diameters can be selected.

[Features]
· Super zero Oldham coupling achieves zero backlash, with improved machining accuracy
· Stronger and more compact design, that can now be used with high precision equipment impossible until now.
· Stainless steel series added, becoming 4 series, with further improvements.
· Materials used are, engineering plastic for spacer, and stainless steel SUS303 for hubs, aluminum series uses aluminum alloy (alumite surface treatment).
· Easy to handle coupling, with low moment of inertia, large swing rigidity, good electrical insulation, and maintenance-free, easy assembly.
· Two types of super zero Oldham coupling, with set screw or collet shaft fixing methods both available, that can be freely combined.
· Stainless steel has no. 4 model number, and the aluminum series has no. 10 model number.
· Stocking stainless steel series from ø4 to ø28, aluminum series from ø3 to ø40 in millimeter and inch system of inner diameter finish.

CAD ：

2D

Precision Shaft Fitting Leaf Spring Type LAD-C Series

SAKAI MANUFACTURING

Non-backlash structure enables highly accurate rotational transmission

[Features]
· Excellent flexibility, highly accurate rotational transmission through synergistic effect of double bolt clamp specification and non-backlash structure.

CAD ：

2D / 3D

Precision Shaft Fitting, Leaf Spring Type LCD-B Series

SAKAI MANUFACTURING

Streamlined body with low inertia specification

[Features]
· Streamlined body with low inertia specification.
· Excellent flexibility, with high accuracy rotation possible.

CAD ：

2D / 3D

Plastic Coupling GJ

ADVANCED

· Compared to UJ, the slit part is longer and the allowable misalignment amount when using alone is improved
· Single item easily absorbs curves and misalignment
· Smooth rotary transmission in a compact design
· For rotation transmission parts that require electric insulation

Oldham Coupling FJ/FJU

ADVANCED

· A combination of aluminum hub and polyacetal slider
· The high-precision slider groove provides zero backlash in light press fitting and also supports servo systems
· Sliders can also be manufactured from chemical-resistant or heat-resistant grade materials

Disc Couplings - High Rigidity (O.D. 40) / Keyless Clamping, Keywayed Bore, for Servo Motors

MISUMI

[Features]·It has a compact size, and the high stiffness surface pressure and keyway can be selected.

CAD ：

2D / 3D