Centa Couplings

Centaflex A Specifications

torque range	0.01 to 12.5 kNm
elastic material	NR / Si
temperature range	NR -45° to +80°C / Si -45° to +120°C

Centaflex A Overview

Highly flexible coupling for a wide range of applications. For a maximum of design variants.

Based on a highly elastic rubber element subject only to compressive stress. Extremely high-performing design with high torsional elasticity. Dampens torsional vibrations and shocks and compensates considerable axial, radial and angular misalignments. Electrically insulating and thermally resistant in silicon design. For rupture-proof and backlash-free transmission of high torques.

Available as axially blind fitting design with radial mountability. Rubber element available as split element for quick replacement. Easy handling and mountable with minimum effort. In various lengths adaptable to the installation requirements if applied as homokinetic shaft. Also available as carbon-fibre or glass-fibre designs.

Centaflex DS Specifications

Extremely low torsional stiffness at low speeds (idling), therefore the resonance falls far below idling speed and torsional vibrations and gear noise is avoided, and a very low idling speed becomes possible

• the stiffer, robust, well proven jaw coupling transmits the torque at higher speeds

• simple, compact, reliable and economical design - no bonded rubber, no rubber in shear, only rubber in compression i.e. ideal working conditions. The rubber is heat resistant and the coupling has internal ventilation for good heat dissipation

• failsafe

• suitable for blind assembly in flanged housings, input shaft of the gear can be splined or tapered

• well matched sizes for SAE fly-wheels and all types of gears, torque range 0.2 - 15 kNm, which means about 2000 kW.

Centaflex DS Overview

Combining the flexibility of a roller coupling with the ruggedness of a claw couplingA Dual Stage (DS) coupling with progressive characteristic for smooth operation and reliable load transmission.

The CENTAFLEX-DS combines good damping characteristics of a torsionally flexible roller coupling under partial load with the robustness of a claw-type coupling under full load. An extremely short and economic design for smooth operation at low idling speeds for applications with a high degree of idling. Effectively ventilated and with high allowable power loss.

Blind assembly for minimum mounting effort. Delivered with fail-safe device and flywheel connections acc. to SAE. Also available for non-standard flywheels.

Extremely low torsional stiffness at low speeds (idling), therefore the resonance falls far below idling speed and torsional vibrations and gear noise is avoided, and a very low idling speed becomes possible

The stiffer, robust, well-proven jaw coupling transmits the torque at higher speeds

Simple, compact, reliable and economical design - no bonded rubber, no rubber in shear, only rubber in compression i.e. ideal working conditions. The rubber is heat resistant and the coupling has internal ventilation for good heat dissipation.

Centaflex R Specifications

Progressive torsional characteristic with very low stiffness at low torque
and increased, but moderate stiffness at high torque
• Fail safe
• Simple, reliable, no bonding, only rubber in compression
• Special developed, temperature resistant elastomer CENTALAN with high damping, suitable for high ambient temperature of more than 100°C (212°F)
• For commercial heavy duty or difficult applications we recommend the special „HD“ rubber rollers, which are also oil resistant.
• Well proven in service and approved by classification societies
• High allowable energy loss by intensive inner and outer ventilation
• Suitable for blind fitting in bell housings
• Economic/easy maintainable design
• Protected by international patents
• Area of application: flange mounted units or well aligned independently mounted units on rigid mounts
• The CF-R is part of the CENTA-Antriebe family of marine drive couplings covering a range between the more than 100000 times proven CENTAFLEX-DS (Dual Stage) series and the well established, CENTAX series up to 500 kNm.

Centaflex R Overview

A highly flexible coupling with progressive characteristics used in heavy duty applications.
The CENTAFLEX-R boasts an extremely robust and fail-safe design with rubber rollers subjected only to compressive stress. Characterized by a slight stiffness at lower speeds and a moderately increased stiffness at rising torques for smooth operation and reliable transmission over the entire high allowable energy loss. Suitable for high ambient temperatures, the design includes oil-resistance and even higher temperature resistance. Delivered with fail-safe device and for a variety of shaft connections. With flywheel connections acc. to SAE. Also available for non-standard flywheels.

The CENTAFLEX-R is a simple robust ROLLER coupling with a progressive

torsional characterisation. Ideal for boat drives, providing a very low stiffness at low torque (& speed) which shifts the torsional resonance below idle speed and prevents gearhammer (gear chatter).

Centaflex RV Overview

Highly flexible intermediate coupling with progressive characteristic. For drive concepts with many drive shaft variants.

Combination of highly flexible roller coupling and built-in bearing support. Characterised by slight stiffness at lower speeds and moderately increased stiffness at rising torques. Dampens torsional vibrations and noise. Ensures smooth operation and long lifespan of the coupled units. HD design includes oil-resistance and even higher temperature resistance.

Minimum mounting and maintenance effort. With flywheel connections acc. to SAE. Also available for non-standard flywheels. CENTA FH flange bearing is recommended for larger deflection angles of connected cardan shafts.