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Rigid Shaft Couplings, Torsionally Rigid Shaft Couplings, Elastic Shaft Couplings
Rigid Shaft Couplings, Torsionally Rigid Shaft Couplings, Elastic Shaft Couplings
RINGSPANN GmbH has been a prominent provider of shaft couplings for over 60 years, beginning with the L-coupling in 1956. The company offers a variety of couplings, including rigid, torsionally rigid, and flexible types, designed to handle shaft misalignments and transmit torque efficiently without backlash.
- Tru-Line Flange Couplings (RFK … TBO): Feature a backlash-free cone clamping connection, compact design, and are suitable for mining applications like drive units and conveyor drives.
- Cone Clamping Couplings (RWK … EEO): Designed for backlash-free connection of two shaft ends, ideal for the paper industry.
- Gear Couplings (RDZ … DTO): Torsionally rigid with double engagement gearing, used in roll drives, pumps, conveyors, and fans.
Specifications include nominal torques, permissible misalignments, and material requirements. Ordering information and selection examples are provided.
Guidelines emphasize selecting the correct coupling to prevent issues like fretting corrosion and ensure efficient power transmission.
RINGSPANN offers a comprehensive range of shaft couplings engineered for reliable and efficient torque transmission while accommodating shaft misalignments.
Details on torsionally rigid couplings, their design, applications, and technical parameters are provided.
- Types: DTO, DFO, and EEO.
- Features: High nominal torques, misalignment compensation, compact design.
- Applications: Used in roll drives, pumps, conveyors, fans, and blowers.
- Types: DSO and DSZ.
- Features: High torque capacity, backlash-free, high torsional rigidity.
- Applications: Suitable for pumps, fans, packaging machines, and conveyor systems.
- Bore Sizes: Detailed for different coupling sizes.
- Material: Typically steel, with polyamide sleeves in some designs.
- Temperature Range: -25 °C to +280 °C.
- Order Codes: Examples for ordering specific designs and sizes.
- IEC Standard Motors: Guidelines for coupling with standard motors.
The document serves as a guide for selecting and understanding gear and disc couplings, emphasizing design, functionality, and adaptability.
Technical specifications and features of Disc Couplings (RDL … DSA) and Flexible Couplings (RDA … ESO) are detailed.
- Designed according to API 610 standards.
- Features include high nominal torques, high torsional rigidity.
- Suitable for centrifugal pumps and turbo compressors.
- Compact design with electrical insulation.
- Allows for large radial shaft misalignment.
- Applications include printing machines and machine tools.
- Nominal torque, power, and speed vary by size.
- Torsional stiffness and moment of inertia specified.
- Order codes specify design, size, type, hub material.
- Customization options include ATEX compliance.
Guidelines for Jaw Couplings, specifically the REK series, designed for dynamic applications.
- Materials: Hubs in steel, cast iron, aluminum; elastic elements in polyurethane.
- Temperature Range: -30°C to +120°C.
- Nominal Torque: Ranges from 9.6 Nm to 2,290 Nm.
- Max Torque: Up to 4,700 Nm.
- Compensation for misalignments.
- Vibration absorption and progressive torsion spring properties.
Suitable for pump drives, ventilator drives, crane trolleys, machine tools, and conveyor belts.
- Based on DIN 740 part 2 or service factors.
Includes tables for standard bores, weights, moments of inertia, and permissible misalignments.
Guidelines for selecting couplings according to DIN 740 part 2, focusing on service factors and technical specifications.
Selection criteria based on service factors, temperature conditions, and torque requirements.
Calculation methods for nominal and peak torque for different drive conditions.
Design according to DIN 740 part 2, impact of ambient temperature on performance.
Includes service factors, start-up factors, and ordering information.
Includes questionnaires for selecting Tru-Line Flange-Couplings and Shaft Couplings.
Consider additional stress factors and use simulation methods for calculating start-up peak torque.
Details on cylindrical shaft with keyway specifications and taper shaft end.
Contact details for RINGSPANN and partners across various regions.
Catalog excerpts
Shaft Couplings Flange Couplings • Cone Clamping Couplings • Gear Couplings • Disc Couplings Flexible Couplings • Grid Couplings • Pin and Bush Couplings • Jaw Couplings Edition 2019/2020 RINGSPANN® Registered trademark of RINGSPANN GmbH, B
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Shaft Coupling Introduction Rigid Shaft Couplings Torque load Transmission of torque shocks, very rough operation backlash free overload holding / fail safe Tru-Line Flange-Couplings RFK … TBO with backlash free cone clamping connection Cone Clamping Couplings RWK … EEO with backlash free connection of two shaft ends Torsionally Rigid Shaft Couplings Torque load Transmission of torque shocks, very rough operation backlash free overload holding / fail safe Gear Couplings RDZ … DTO with double engagement gearing RDZ … DFO with single engagement gearing RDZ … EEO with continuous sleeve, double engagement...
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Installation / alignment rigid / excellent rigid / roughly Permissible misalignments Ambient conditions Damping element wear parts Complies with Bore diameter Installation / alignment rigid / roughly Ambient conditions Damping element hazardous Complies with wear parts rigid / excellent Permissible misalignments Bore diameter Installation / alignment rigid / roughly Ambient conditions Damping element Complies with wear parts rigid / excellent Permissible misalignments true, well suited conditionally suitable, conditionally applicable
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Not shiftable couplings by RINGSPANN For over 60 years, RINGSPANN has been renowned as a provider of couplings, beginning with the patented L-coupling from 1956, which is still offered today as model RDA … ESO. Back then RINGSPANN was able to offer drive system engineers a compact, torsionally rigid flexible coupling based on the Oldham principle that can compensate large parallel and angular misalignments in small spaces. RINGSPANN has since expanded its coupling range and can now offer the not shiftable couplings for almost all applications. For example, the rigid Tru-Line Flange-Couplings...
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Tru-Line Flange-Couplings RFK … TBO backlash free cone clamping connection Features • Compact design • Small axial space required for installation • Quick disassembly for minimal downtime • Large allowable shaft tolerance of h8 • Shafts are not weakened by keyways • No fretting corrosion like with keyway connections • Typical applications: Drive units and conveyor drives e.g. in mining Order example Coupling design Coupling flange with hub type MSC Coupling flange with hub type FSC Coupling size of smaller coupling half 0050 Type Hub A, type: • Flange with Female Pilot • Flange with Male Pilot...
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Tru-Line Flange-Couplings RFK … TBO backlash free cone clamping connection Tru-Line FlangeCoupling RFK Size Coupling Half FSC MSC Female Male Pilot Pilot Flange connection screws Cone clamping screws Weight FSC or Tightening MSC torque Paired coupling halves of the same colour can be interchanged due to matching flange patterns. The maximum torques of the smaller coupling half apply. * Number of connection screws Y in accordance DIN EN ISO 4014 property class 10.9 or 12.9 for RFK 0050 TBO on pitch circle T. Mounting The installation and operating instruction for Tru-Line Flange-Couplings RFK...
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Cone Clamping Couplings RWK … EEO backlash free connection of two shaft ends Features • Comapct design • Easy to remove • For shaft diameters ranging from 14 mm to 100 mm • Rigid and backlash free connections of the shaft ends • Shafts are not weakened by keyways • No fretting corrosion like with keyway connections • Transmission of torque and/or axial forces • Typical applications: Connection of shaft sections e.g. with slitter winders in the paper industry 8-1 Order example Coupling design Pressure ring Cone bushing Coupling size Threaded ring Hub, design: • Clamping ring hub, clamping screws...
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Cone Clamping Couplings RWK … EEO backlash free connection of two shaft ends Max. transmissible torque or axial force Clamping screws Bending moments Where there are bending moments in the application in addition to the torque TN max or the axial force FAN max, the transmissible torque or transmissible axial force is reduced compared to the values for TK max or Fax max as listed in the table. Please contact RINGSPANN. The installation and operating instruction for Cone Clamping Coupling RWK … EEO is available on request
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Gear Couplings RDZ … DTO torsionally rigid double engagement gearing – lubricated Features • High nominal torques up to 391 500 Nm • High misalignment capability • Compensation of axial, radial and angular misalignments • Double engagement allows smooth torque transmission • Compact design due to inside turned hubs • Complies with the AGMA standard (American Gear Manufacturer Association) up to coupling size 0090 • High power to weight ratio • Typical application: Roll drives in the steel and paper industry, pumps, conveyors, fans and blowers Order example Coupling design Coupling half, flexible...
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Gear Couplings RDZ … DTO torsionally rigid double engagement gearing – lubricated Coupling size from coupling size 0080 Moment of inertia with max. bore JK Permissible misalignments Weight with max. bore For finish bores, please specify bore diameter hub A and hub B. Tolerance of finish bores H7. Keyways in accordance with DIN 6885, sheet 1. Keyway tolerance JS9, different bore and keyway tolerances on request. Upon request, couplings larger than frame size 0100 also available. * Bores also available in inch size, see page 68. • ** Minimum necessary s
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Gear Couplings RDZ … DFO torsionally rigid single engagement gearing – lubricated Features • High nominal torques up to 391 500 Nm • Compensation of axial and angular misalignments • Compact design due to inside turned hubs • High power to weight ratio • Typical application: Roll drives in the steel and paper industry, pumps, conveyors, fans and blowers Order example Coupling design Coupling size Coupling half, rigid with hub B type I Gasket Coupling half, flexible Hub A, design: • finish bored with keyway • roughbored Hub B, type: • I, coupling half, rigid with hub Hub B, design: • finish bored...
Open the catalog to page 12All SIAM RINGSPANN catalogs and technical brochures
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