Standard planetary gearboxes for harsh conditions and high loads

R.A. Rodriguez (UK) Ltdvisit website


Standard planetary gearboxes for harsh conditions and high loadsR. A. Rodriguez is introducing two new series of Framo Morat standard planetary gearboxes to meet the needs of applications requiring operation in challenging environments and precision positioning of heavy loads.

PS series for challenging environments

Every component in the PS series has been designed for stiffness and stability, giving the gearboxes outstanding strength and resistance to overload. Precision ground tooth flanks minimise friction losses to ensure the gears run quietly at up to 97 per cent efficiency. This design feature also achieves exceptionally low backlash of <20arcmin, even for multi-level transmission.

These high-tensile, durable gears benefit from a compact design that keeps weight to a minimum while achieving high performance. They are lubricated for life and can be installed in a single housing, achieving 24 different transmission ratios in one-, two- or three-stage construction. Sealed housings enable the gearboxes to operate anywhere, and they can be used with all standard types of electric motor.

Special flanges and drive shafts, specifically designed for use with planetary gears, are also available from R. A. Rodriguez. As a result, the PS Series can be used in many different applications. Typical examples are: adjustment and positioning of large, heavy solar panels; precise alignment of carriages and machining tables with integrated drives; and actuation of sun blind systems in building technology.

The PS Series planetary gears are supplied in standard housings with diameters of 40, 60 and 80mm for nominal output torques of between 14 and 93Nm. Each has a triple emergency stop overload torque.

PL series for extreme loads

The PL Series planetary gearboxes are particularly suitable for handling extremely high axial and radial forces and changing torsional moments. Despite their compact, space-saving design, the bearings and drive shafts are generously sized to cope with these challenges. High-performance, torsionally stiff materials used for the gear teeth enable exceptionally high torques to be transferred, and minimal backlash means the gears may be used in drive systems where maximum positional accuracy is essential.

The robust PL Series gearboxes are available in a single-stage design with five different transmission ratios and in a two-stage design with up to nine ratios. Variants with 50, 70, 90, 120 and 155mm housing diameters can transfer between 7 and 340Nm nominal torque. They can withstand overload torques of up to three times the rated torque without sustaining damage and are lubricated for life.

The stable construction of the PL Series, specially designed to withstand extreme loads, makes these gearboxes an excellent choice for use in industrial robots, construction machinery and commercial vehicles. They operate equally well as high-performance drive elements in any application where large transmission ratios are needed in small installation spaces.

Framo Morat is a leading supplier of gears in Europe and the company’s continued investment in production technology enables it to cost-effectively manufacture small production runs in short lead times. Special requirements are also easily accommodated. Drive experts at R. A. Rodriguez and Framo Morat can design custom components for these planetary gears on request, such as special add-on flanges.

Gears can also be manufactured from alternative materials to suit the application - plastic, for example - or they can be designed to be completely resistant to corrosion.

Follow the link for more information and to watch a short video about Framo Morat planetary gearboxes from R. A. Rodriguez.

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