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More torque for miniature power transmission applications

More torque for miniature power transmission applications
Rotalink has combined spur and planetary gear stages within the industry standard ovoid gearbox for a potential output torque increase of at least 400 percent. The new gearboxes, available in three model sizes, and will enable higher torque or reduced gearbox size for existing customer applications and pave the way for next generation miniature powertrain systems across all industries.

The new Rotalink gearboxes are the 330 series (a form-fit mounting replacement for the conventional 'standard' industrial ovoid gearbox with a vastly improved 13Nm peak holding torque), and the 360 series - a slightly larger model with a massive 28Nm peak torque in a gearbox case that measures just 95x60x31.5mm deep. The third and completely new gearbox model, the 310, is Rotalink's smallest ovoid design and mounts within a volume of just 45x29x20mm deep but boasts a 2.6Nm holding torque for a 10000 hour life.

A wide range of ratios is available, typically from 24:1 to 3200:1 depending upon the model size with maximum output speeds between 300 and 400rpm. All include a zinc plated pressed steel gearbox case and cover with four-point mounting for maximum durability. Spur gears run on fixed steel spindles leading to the final planetary output stage with precision ball bearings supporting the stainless steel output shaft which is available as a standard flatted design or can be customised for the application. 

For the 310 series, Rotalink also offers all spur gear versions and different levels of advanced gear materials, with a choice of plain or ball bearings. These options de-rate the maximum torque and performance capability but maintain a flexibility through the range that allows keen pricing for less demanding applications. The new 330 and 360 series are also available with different levels of gear materials and a choice of bearings

All gearboxes are designed for fast and straightforward interfacing with Rotalink's comprehensive range of DC, AC and stepping motors along with single and dual channel feedback encoders which are fitted directly between the motor/gearbox assemblies. This allows the use of "off the shelf" single output shaft motors and helps to reduce product costs and development timescales.
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