Product Information

SERVOFLEX

Rigorous analysis using finite element method, metal disc-spring method for ultra-high torsional stiffness

These metal disc-spring couplings with ultra-high torsional stiffness were developed for servo motor applications. The disc-spring method provides excellent properties: firmness in the torsional direction but flexibility in the bending, step-difference, and axial directions. The disc spring that serves as the element has an unbeatable theoretically derived shape that is the result of rigorous analysis with the latest finite element method. These couplings are available in a full line-up for many different applications. Compact and lightweight SFC models use high-strength aluminum alloy for the hub material. SFS models, which use carbon steel for the body material, come in many different variations. And the SFM and SFF models were developed for main and feed shafts of machine tools.

Application
Machine tools/Semiconductor production equipment/Actuators/Chip mounters/Printing machines/Packaging machinery

  • 製品一覧
  • アプリケーション
  • カスタマイズ
  • よくあるご質問
  • ムービー

SFC Models

These are disc-spring couplings that use a lightweight, high-strength aluminum alloy for the clamp hub to enable high torsional stiffness and high response. Both single-element types with high torsional stiffness and flexible double-element types that separate double elements with a spacer are available. Both lower the moment of inertia by linking the outer diameter of the hub to the shaft diameter.

基本スペック

  • Max. rated torque

    250 N・m

  • Bore ranges

    3 mm to 45 mm

  • Backlash

    Zero

Click to see details of this product

  • カタログ・技術資料ダウンロード
  • 取扱説明書ダウンロード
  • 2D CADダウンロード
  • 3D CADダウンロード

SFS Models

These couplings have disc springs that use steel for the body. They are the basic type of SERVO FLEX. Single-element types with high torsional stiffness, flexible double-element types that separate double elements with a spacer, and floating shaft types that combine double elements with intermediate flanges are available.

基本スペック

  • Max. rated torque

    800 N・m

  • Standard bore-drilling range

    8 mm to 80 mm

  • Backlash

    Zero

Click to see details of this product

  • カタログ・技術資料ダウンロード
  • 取扱説明書ダウンロード
  • 2D CADダウンロード

SFF(-N) Models

These couplings have disc springs that use steel for the clamp hub. Their torsional stiffness is extremely high, their shaft rotation is accurate, and control can be ultra-precise. Both single-element types with ultra-high torsional stiffness and flexible double-element types that separate double elements with a spacer are available.

基本スペック

  • Max. rated torque

    600 N・m

  • Bore ranges

    8 mm to 42 mm

  • Backlash

    Zero

Click to see details of this product

  • カタログ・技術資料ダウンロード
  • 取扱説明書ダウンロード
  • 3D CADダウンロード

SFF Models

These couplings have disc springs that use steel for the body. This makes them optimal for ordinary feed shafts that have high torsional stiffness, have accurate shaft rotation, and are capable of ultra-precise control. Both single-element types with high torsional stiffness and flexible double-element types that separate double elements with a spacer are available.

基本スペック

  • Max. rated torque

    800 N・m

  • Bore ranges

    18 mm to 80 mm

  • Backlash

    Zero

Click to see details of this product

  • カタログ・技術資料ダウンロード
  • 取扱説明書ダウンロード
  • 2D CADダウンロード
  • 3D CADダウンロード

SFM Models

These models were developed to be compatible with spindle applications on machine tools. They are disc spring couplings capable of high precision and high speed. To enable high-precision mounting, both the flange unit and the pressurization flanges are equipped with centering mechanisms. They are also shaped so that the flange covers the periphery of the disc spring with few raised or lowered surfaces to minimize whistling during high speed rotation. Both single-element types with ultra-high torsional stiffness and flexible double-element types that separate double elements with a spacer are available.

基本スペック

  • Max. rated torque

    800 N・m

  • Bore ranges

    28 mm to 80 mm

  • Backlash

    Zero

Click to see details of this product

  • カタログ・技術資料ダウンロード
  • 取扱説明書ダウンロード
  • 3D CADダウンロード

SFD Models

The patented clamp mechanism enables the hub to be accurately installed on the shaft using a single bolt.It uses a differential screw to enable an interference fit function to be provided at the bore. This enables extremely high concentricity and also a very high clamping force to be realized simultaneously at the shaft.In addition, the element is an independently designed hexagonal type, ensuring high stiffness.

基本スペック

  • Max. rated torque

    180N・m

  • Bore ranges

    20mm to 42mm

  • Backlash

    Zero

Click to see details of this product

  • カタログ・技術資料ダウンロード

SFH Models

The maximum size with disc spring couplings for high-output applications is an outer flange diameter of 262 mm and rated torque of 8000 N・m. Single-element types with high torsional stiffness and flexible double-element floating-shaft types that connect double elements with an intermediate floating shaft are available. The floating shaft is particularly able to handle the setting of lengths according to customer requirements.

基本スペック

  • Max. rated torque

    8000 N・m

  • Standard bore-drilling range

    22 mm to 115 mm

  • Backlash

    Zero

Click to see details of this product

  • カタログ・技術資料ダウンロード

 Product Lineup

Contact

Contact



Find Product

Find Coupling

  • Specifications
  • Actuator
  • Motor
Product
Load torque

N·m

 or greater
Service factor Service factor
*More than 10 Hz inching/reversible operation: 1.2
*Use of rubber coupling at temperatures between 40 and 80℃: 1.4 to 1.8

Bore diameter: d1 (small diameter)

mm

Bore diameter: d2 (large diameter)

mm

External diameter

mm

mm

Entire length

mm

mm

Shaft connection method
Drive/driven

Characteristics*More than one can be selected

[ Actuator ]

Manufacturer
Product number

[ Motor ]

Manufacturer
Product number

Type
Capacity
Rotation speed
Maximum torque

N·m

Motor shaft diameter

mm

Motor shaft diameter
Shaft diameter on the following side

mm

External diameter

mm

mm

Entire length

mm

mm

Shaft connection method

Characteristics*More than one can be selected

Search using keywords

Search catalog

Search by intended use

Search by Function

Search by Field

Download

You can download the product catalog, instruction manual PDF files, and CAD data.

Download PDF