RB & PM Catalogue
36Pages

RB and PM Hi-Tec Industrial Couplings Superior Coupling Technology www.renold.com

2 I RB and PM 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 9001:2008, Renold Hi-Tec couplings can demonstrate their commitment to quality. • Measurement of torsional stiffness up to 220 kNm • Full scale axial and radial stiffness measurement • Misalignment testing of couplings up to 2 metres diameter • Static and dynamic balancing • 3D solid model CAD • Finite element...

4 I RB and PM Catalogue RB Flexible Coupling General purpose, cost effective range, which is manufactured in SG iron for torques up to 41kNm. The Standard Range Comprises • • • • Shaft to shaft Shaft to shaft with increased shaft engagement Flywheel to shaft Flywheel to shaft with increased shaft engagement Applications • • • • • • • • Generator sets Pump sets Compressors Wind turbines Metal manufacture Bulk handling Pulp and paper industry General purpose industrial applications Features Benefits • • Ensuring continuous operation of the driveline in the Intrinsically fail safe unlikely...

RB and PM Catalogue I5 RB Typical Applications Diesel generator set. Coupling fitted between the engine and alternator. Diesel Generator Set. Coupling fitted between the engine and alternator. Pump sets. Coupling fitted between diesel engine and centrifugal pump. Steel mills. Couplings fitted on 35 tonne overhead crane, and on table roller drives. Steel mills. Couplings fitted to table roller drives on rolling mills and furnace discharge tables. www.renold.com

12 I RB and PM Catalogue RB Technical Data 1.1 Torque Capacity - Diesel Engine Drives 2.1 The RB Coupling is selected on the “Nominal Torque TKN”without service factors for Diesel Drive applications. The full torque capacity of the coupling for transient vibration whilst passing through major criticals on run up, is published as the maximum torque. (TKMAX = 3 x TKN). There is additional torque capacity built within the coupling for short circuit and shock torques, which is 3 x TKMAX. The published “Vibratory Torque TKW”, relates to the amplitude of the permissible torque fluctuation. The...

RB and PM Catalogue I 13 RB Technical Data 2.6 Si70 SM 60 SM 70 SM 80 Rubber Grade SM 60 SM 70 SM 80 Si70 2.5 2.5.1 2.5.2 Tempmax °C St 200 St200 = 0.48 100 St100 = 0.75 100 St100 = 0.63 100 St100 = 0.58 SM 70 is considered “standard” Dynamic Magnifier at 30°C (M30) Dynamic Magnifier at 100°C (M100) 8 10.7 6 9.5 4 6.9 7.5 M200=15.63 SM 70 is considered “standard” Prediction of the actual coupling temperature and torsional stiffness Use the torsional stiffness as published in the catalogue, this is based upon data measured at 30˚C and the dynamic magnifier at 30˚C. (M30) Compare the...

The RB Coupling can be adapted to meet customer requirements, as can be seen from some of the design variations shown below. For a more comprehensive list, contact Renold Hi-Tec. Spacer Coupling Cardan Shaft Coupling Spacer Coupling. Used to increase distance between shaft ends Cardan Shaft Coupling. Used to increase the distance between and allow easy access to driven and driving machines. shaft ends and give a higher misalignment capability. Coupling with Long Boss Inner Member Brake Drum Coupling Coupling with long boss inner member and large boss driving Coupling with brake drum for use...

16 I RB and PM Catalogue PM Features and Benefits Heavy duty steel coupling for torques up to 6000KNm. The Standard range comprises • • • • Shaft to shaft Flange to shaft Mill motor coupling Brake drum coupling Applications • • • • • • • • Metal manufacture Mining and mineral processing Pumps Fans Compressors Cranes and hoists Pulp and paper industry General heavy duty industrial applications Features Benefits • Severe shock load protection • Giving protection and avoiding failure of the driveline under • Intrinsically fail safe • • Maintenance free • • Vibration control • • Zero backlash •...

RB and PM Catalogue I 17 PM Typical Applications Fan Drive. Coupling fitted between the variable frequency electric motor and the fan. Ladle Crane. Couplings fitted on the input and output of the main hoist and long travel. Conveyor. Couplings fitted on the input and output on conveyor drives. Steam Turbine Gerator Set. Coupling fitted between the gearbox and alternator. Eiffle Tower main lift. Coupling with brake disc fitted between the electric motor and the gearbox that raises, lowers and brakes lift. www.renold.com

22 I RB and PM Catalogue PM Technical Data 1.1 Prediction of the System Torsional Vibration Characteristics. 2.2.2 An adequate prediction of the system torsional vibration characteristics can be made by the following method. 1.1.1 Compare the synthesis value of the calculated heat load in the coupling (PK) at the speed of interest to the “Allowable Heat Dissipation” (PKW). The coupling temperature rise PK ºC = Tempcoup = x 70 ( ) PKW Use the torsional stiffness as shown in the technical data, which is based upon data measured The coupling temperature = ϑ ϑ = Tempcoup + Ambient Temp. at a...

The PM Coupling can be adapted to meet customer needs as can be seen from some of the design variations shown below. For a more comprehensive list contact Renold Hi-Tec. Torque Limiting Coupling Vertical Spacer Coupling Combination with a torque limiting device to prevent damage to driving and driven machine under shock load. Brake Disk Coupling Combination with a brake disc, for use on cranes, fans and conveyor drives. (Brake drum couplings also available). Cardan Shaft Coupling Cardan Shaft Coupling. Used to increase the distance between shaft ends and give a higher misalignment...