*mydirectindustry

Catalogs
RENOLD
VF Coupling

VF Coupling

Product catalog summary

Introduction
Renold Hi-Tec Couplings specializes in torsionally flexible couplings with over 50 years of experience. The company prioritizes quality, being among the first in the UK to achieve EN ISO 9001:2000 certification, and employs advanced machining and lean manufacturing techniques.

Engineering Support
Renold offers extensive testing and development facilities, including torsional stiffness measurement, misalignment testing, and 3D CAD modeling. They provide a Torsional Vibration Analysis (TVA) service to evaluate driveline performance.

Marine Survey Society Approvals
Renold ensures its products comply with stringent marine performance standards.

VF Highly Flexible Coupling
The VF coupling is designed for diesel engines on flexible mounts, offering vibration isolation and accommodating misalignments. It is suitable for high-speed diesel engines with SAE flywheels and power take-offs up to 18.0 kNm.

Features and Benefits

Easy maintenance with radial removal of rubber elements.
Low linear stiffness to reduce vibratory loads.
High misalignment capability for axial and radial misalignments.
Zero backlash to eliminate torque amplifications.
Noise attenuation for quiet operation.

Technical Data
The document includes detailed technical data for VF couplings, such as nominal torque, transient torque, maximum torque, vibratory torque, dynamic torsional stiffness, allowable heat loading, and maximum speed.

Guidance Notes
Renold stresses the importance of avoiding torsional resonances within the operating speed range and recommends a torsional vibration calculation before machinery startup. They offer a computer program for calculating torsional stiffness and dynamic magnifier.

Product Performance
Performance levels and tolerances are verified through testing and quality control. Customers are advised to verify performance levels for their specific applications.

Additional Coupling Ranges
The document mentions other coupling ranges like DCB-GS for marine propulsion and UJ for universal joint shafts, highlighting their applications in various industries.

Product Overview
The document outlines three ranges of industrial couplings designed for various applications, each with specific torque capacities and configurations.

RB Range
A general-purpose, cost-effective range available in shaft-to-shaft or flywheel-to-shaft configurations, supporting a maximum torque of 41 kNm. Suitable for generator and pump sets, compressors, metal manufacturing, bulk handling, pulp and paper industry, and general industrial applications.

PM Range
Designed for heavy industrial applications, offering exceptional protection against severe shock loads and vibration, with a maximum torque of 7000 kNm. Ideal for metal manufacturing, mining, pumps, fans and compressors, cranes and hoists, power generation, pulp and paper industry, and general heavy-duty industrial applications.

MSC Range
This innovative coupling is tailored for diesel drive and compressor applications, providing low linear stiffness and control of resonant torsional vibration with failsafe operation. It has a maximum torque of 375 kNm and is used in marine propulsion, high power generator sets, and compressors.

Catalog excerpts

Melbourne (Victoria) email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] email: [email protected] SOUTH AFRICA email: [email protected] email: [email protected] email: [email protected] email: [email protected] For other country distributors please contact Renold UK or visit the renold Whilst all reasonable care in compiling the information contained in this brochure is taken, no responsibility is accepted for printing errors. All information contained in this brochure is subject to change after the The FSC logo identifies products which contain wood from well-managed forests certified in accordance with the rules of the Forest Stewardship Council. -rpQ^> www.fsc.org Cert no.SGS-COC-000969 -IT Ov, ©1996 Forest Stewardship Council Superior Coupling Technology

Open the catalog to page 1

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

Open the catalog to page 2

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...

Open the catalog to page 3

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...

Open the catalog to page 4

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

Open the catalog to page 5

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...

Open the catalog to page 6

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...

Open the catalog to page 7

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...

Open the catalog to page 8

All RENOLD catalogs and technical brochures

Archived catalogs

Universal Gears Catalogue
846 Pages