Couplings

Couplings
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Couplings

Product catalog summary
Introduction
Couplings are critical components in mechanical systems, connecting drive and driven shafts to transmit rotary motion and torque. They help compensate for shaft misalignments, absorb runout errors, and dampen vibrations. Rigid couplings are used when no compensation is needed.
General Notes
Couplings are divided into two main categories: motion control and torque/power transmission. Motion control requires high precision and zero backlash, suitable for servo motors and industrial robots. Torque and power transmission focus on force transmission, ideal for conveyor systems and pumps. Various coupling types are available, including high response, bellows, beam, double loop, elastomer jaw, and oldham couplings.
Overview of Types
The document details various coupling types, their specifications, applications, and features:
  • Elastomer Jaw Couplings: High torque transmission, compensates for misalignments, used in hydraulic pumps and packaging machines.
  • Oldham Couplings: Compensates for high lateral shaft misalignments, used in positioning drives and packaging machines.
  • Bellows Couplings: Precise angular and torque transmission, used in position measuring systems and spindle drives.
  • Beam Couplings: Flexible and compensates for misalignments.
  • High Response Couplings: Zero backlash torque transmission, used in actuators and pick-and-place machines.
  • Double Loop Couplings: High shaft misalignment compensation, used in plant construction and the food industry.
  • Rigid Couplings: Precise angular and torque transmission, used in agitators and conveyor systems.
Technical Information
Technical specifications include shaft diameter, rated torque, maximum speed, and misalignment tolerance. Assembly instructions and definitions of terms are provided to aid in proper selection and installation.
Conclusion
This catalogue is a comprehensive guide for selecting the appropriate coupling type based on application requirements. It emphasizes considering misalignment and runout tolerances to prevent vibrations and wear. Technical details are subject to change, and consultation with the design department is encouraged for specific inquiries.
Specifications
Materials include steel and stainless steel, with operating temperatures from -40°C to +175°C. Products comply with RoHS standards.
Procedures
Assembly instructions cover shaft-hub fastening, emphasizing correct shaft insertion depth and alignment adjustment to prevent damage and ensure optimal performance.
Technical Information
Key parameters include rated torque, maximum torque, rotational speed, moment of inertia, and slip torque. The impact of temperature on performance is also discussed.
Recommendations
Limit shaft misalignments to one-third of the permissible value to avoid vibrations and extend service life. Testing the suitability of the selected coupling under real operating conditions is advised.
Application Examples
Examples and technical information for various coupling models are provided, focusing on restoring force and pressure considerations.
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Catalog excerpts

Couplings-1

For more information on couplings, visit the Ganter website

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Couplings-3

High Response Couplings GN 2248 18 Double Loop Couplings GN 2250 19 Technical Information / Definition of Terms 26 With the publication of this catalogue, all previous issues become invalid. Technical details are subject to change without notice. The details given herein comply with state of the art engineering at the time of printing. We reserve the right to amend errors and to remove individual articles from the product assortment. The products listed in this catalogue have been developed as standard products with the aim of covering the widest possible spectrum of requirements. We cannot be...

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Couplings-4

Couplings General Notes Introduction Couplings create connections between drive shafts and driven shafts in order to transmit rotary motion and torque. For example, they are used to combine the shafts of motors and transmissions into a single drive unit. Alongside the primary purpose of transmitting torque, couplings also carry out other important tasks: -Compensating for shaft offsets and misalignments -Absorbing runout errors and axial motions -Damping vibrations and shocks Couplings are used in a very wide range of applications. The spectrum ranges from simple drives to complex control, regulation...

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Couplings-5

Couplings General Notes Areas of Application - Classes - Coupling Types The applications of couplings can generally be divided into two classes. Motion control Torque and power transmission For motion control applications, the rotational movement is transmitted with very high precision and accuracy. This requires a coupling type with a high torsional stiffness and zero backlash in the direction of rotation. Typical applications are: Servo or stepper motors for linear axes, industrial robots, test benches, etc. For torque and power transmission, the focus lies on pure transmission of force. This...

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Couplings-6

Couplings Overview of Types Zero backlash GN 2241 Page 8 Elastomer Jaw Couplings GN 2242 Page 10 Oldham Couplings GN 2244 Page 14 Bellows Couplings Fast and simple plug-in assembly - High lateral shaft misalignment compensation, Fast and simple plug-in assembly e.g. positioning drives / packaging machines x GN 2246 Page 16 Beam Couplings Special features Application examples e.g. hydraulic pumps / packaging machines GN 2243 Page 12 Oldham Couplings Torque and power transmission Shaft-Ø in mm GN 2240 Page 6 Elastomer Jaw Couplings Positon and motion control Precise angular and torque transmission,...

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Couplings-7

Page 2/2 Overview of Types Torque and power transmission Zero backlash Shaft-Ø in mm GN 2248 Page 18 High Response Couplings Positon and motion control Special features Application examples Zero backlash torque transmission, vibrationdamping properties e.g. actuators / pick-and-place machines GN 2250 Page 19 Double Loop Couplings GN 2260 Page 20 Rigid Couplings, Slotted High shaft misalignment compensation e.g. plant construction / food industry GN 2262 Page 22 Rigid Couplings, Split GN 2264 Page 21 Rigid Couplings, Slotted Precise angular and torque transmission, high torsional stiffness e.g....

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Couplings-8

Elastomer Jaw Couplings Aluminum, with Clamping Hub B Without keyway K With keyway DIN 6885-1 P9 (from dj = 30) 3.6 Moving, Transferring, Connecting with Joints, Couplings and Gears

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Couplings-9

Anodized, natural color Coupling spider - 98 Shore A, red Socket cap screws ISO 4762 Steel, blackened RoHS Elastomer jaw couplings GN 2240 can transmit very high torques while compensating for shaft misalignments and runout tolerances. They are preferred in applications where the focus lies on pure torque and power transmission. The choice of three coupling spiders with different hardness values allows the properties of the coupling to be optimally matched to the specific requirements. The clamping hubs and simple plug-in installation make jaw couplings very easy to assemble. With the bore code...

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Couplings-10

Elastomer Jaw Couplings Aluminum, with Grub Screw 3.6 Moving, Transferring, Connecting with Joints, Couplings and Gears

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Couplings-11

Anodized, natural color Coupling spider Grub screws • Steel, blackened • For d2 / d3 > 4, two grub screws RoHS Accessory Page Elastomer jaw couplings GN 2241 can transmit very high torques while compensating for shaft misalignments and runout tolerances. They are preferred in applications where the focus lies on pure torque and power transmission. The choice of three coupling spiders with different hardness values allows the properties of the coupling to be optimally matched to the specific requirements. The use of grub screws for clamping and the simple plug-in installation make jaw couplings...

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Couplings-12

Oldham Couplings Aluminum, with Clamping Hub B Without keyway K With keyway •Lastschwankungen sind nicht berucksichtigt 10 3.6 Moving, Transferring, Connecting with Joints, Couplings and Gears

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Couplings-13

Anodized, natural color Steel, blackened Oldham couplings GN 2242 can compensate for large lateral shaft misalignments while transmitting high torques. As a result, they are used in applications with a focus on pure torque and power transmission associated with high lateral shaft misalignments. The clamping hubs and simple plug-in installation make oldham couplings very easy to assemble. They are suitable for a diverse range of applications and are used in general machine construction in packaging machines and pumps. With the bore code K, the keyway is always integrated into both bores d2 and...

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Couplings-14

Oldham Couplings Aluminum, with Giub Screw B Without keyway K With keyway Recommended shaft tolerance h7 *Load fluctuations are not taken into account 3.6 Moving, Transferring, Connecting with Joints, Couplings and Gears

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Couplings-15

Anodized, natural color Grub screws • Steel, blackened Oldham couplings GN 2243 can compensate for large lateral shaft misalignments while transmitting high torques. As a result, they are used in applications with a focus on pure torque and power transmission associated with high lateral shaft misalignments. The use of grub screws for clamping and the simple plug-in installation make oldham couplings very easy to assemble. They are suitable for a diverse range of applications and are used in general machine construction in packaging machines and pumps. With the bore code K, the keyway is always...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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