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VF Hi-Tec Highly Flexible Coupling Superior Coupling Technology www.renold.com

2 I VF Coupling Catalogue Introduction Over 50 years of experience Renold Hi-Tec Couplings has been a world leader in the design and manufacture of torsionally flexible couplings for over 50 years. Commitment to Quality As one of the first companies in the UK to gain approval to EN ISO 9001:2000, Renold Hi-Tec couplings can demonstrate their commitment to quality. World Class Manufacturing Continual investment is being made to apply the latest machining and tooling technology. The application of lean manufacturing techniques in an integrated cellular manufacturing environment establishes efficient...

VF Coupling Catalogue I3 VF Highly Flexible Coupling The highly flexible VF coupling has been designed for diesel engines that are mounted separately from the marine gear and which can be placed on flexible mounts. These flexible mounts provide optimum isolation of the vibrations of the diesel engine from the hull. The VF coupling can dampen torsional vibrations, tune the torsional response of the system and absorb the unavoidable substantial misalignments between the engine and the gear, it is specially suitable for high speed diesel engines with SAE flywheels from 14 to 21 and for power take...

VF Flexible Coupling - Dimensional Data (1) Weights and Inertias based on maximum bore diameter.

VF Coupling Catalogue I5 VF Flexible Coupling - Technical Data VF COUPLING Rubber Grade Nominal Torque TKN Transient Torque TKmax1 Maximum Torque TKmax2 Maximum Torque Range ∆Tmax Vibratory Torque TKW Dyn' Torsional Stiffness CTdyn Allowable Heat Loading @30oC PKw Dynamic Magnifier Maximum Speed Radial misalignment ∆ K'r Radial misalignment installation Radial Stiffness Cr Axial misalignment ∆ Ka1 Axial misalignment ∆ Ka2 Axial misalignment installation Axial Load @ 1 mm F50 1. kNm 4.0 2. kNm 5.2 12.0 3. kNm 4. kNm 5.0 5. kNm 1.55 6. kNm/rad 25 7. W 195 8. M 8.0 9. RPM 2460 10. mm 4.0 0.5 N/mm...

6 I VF Coupling Catalogue VF Flexible Coupling - Technical Data 1. Select coupling TKN to match the nominal torque of the engine, without considering transient peak torques. The values of TKN , TKmax and TKW are based on an ambient temperature of 30°C. For high ambient temperatures (above 60°C) or high thermal loads a factor of 80% should be applied to TKN, TKmax and TKW 2. TKmax1 refers to a normal transient torque e.g. stops and starts 3. TKmax2 refers to an abnormal transient torque e.g. short circuit torque. 4. Maximum Torque Range ∆Tmax refers to the torque range during a normal transient...

VF Coupling Catalogue I7 Product Range DCB-GS Range The DCB-GS coupling is ideally suited for marine propulsion, power generation and reciprocating compressor applications where control of resonant torsional vibration and long life are essential. Applications • Marine Propulsion • Compressors • High Power Generator Sets UJ Range The UJ coupling is designed for use in conjunction with universal joint shafts. Applications • Construction Plant • Railway Vehicles • Pumps • Steel Mills • Paper Mills • Power Take Offs HTB Range The HTB coupling is a high temperature blind assembly coupling for mounting...