Rotalink’s miniature ovoid gearbox is now available in three build versions
10 November 2010
Rotalink's newest and smallest miniature ovoid gearboxes are available in three build versions to suit both the price and the dynamic performance requirements of the maximum number of applications for mechatronics assemblies. The 310, 222 and 210 series gearboxes share the same pressed steel and zinc plated casing with a nominal volume of under 45 mm x 29 mm x 20 mm deep with 4-point face fixing but the design construction is modified for progressively higher torque and duty.
The top rated 310 features an innovative spur and planetary gear arrangement in ultra polymer materials that is capable of an output torque of over 4 Nm. It is aimed at machine automation applications where optimum performance and miniaturisation are key design factors or where existing size restricted machine designs require higher dynamic performance or increased life vs. duty. The 310 has a 6 mm diameter output shaft supported on twin ball race bearings and in addition to its very high torque is also an extremely quiet performer suiting the biomedical, theatre and vending equipment markets.
The mid range 210 series also uses Rotalink's combined spur and planetary output stage design in standard engineered polymer materials together with a 6 mm diameter output shaft supported on twin ball race bearings for torque output up to 2.2 Nm. This gearbox offers exceptional cost vs. performance and quiet performance for high torque applications in pumps and valves, instruments and CCTV equipment.
The moderately priced 222 series gearbox features an all spur gear design in engineering polymers with a 4 mm diameter stainless steel output shaft mounted on sintered front and nylon rear bearings. This gearbox is capable of delivering an output torque of up to 0.65 Nm and will suit medium performance applications for small instruments, pumps and valves, timers, and pan & tilt mechanisms for CCTV and the emerging IP Camera markets.
Through the 310 and 210 series a wide choice of standard ratios are available from 26:1 to 2794:1, whilst the 222 series offers ratios from 7:1 to 782:1. Custom ratios, special shafts, wiring and connector options can also be adapted within the gearboxes and supplied along with ancillary products such as leadscrews, pulleys, clutches and encoders.
The 310, 222 and 210 series are part of a comprehensive Rotalink designed and manufactured range which includes ovoid, inline and planetary gearboxes to 28 Nm, innovative feedback devices, servo drives and motion controls that are combined with competitively priced AC, DC brushed, brushless or specialist motors for high-value cost optimised miniature power transmission solutions.
These gearboxes are featured in detail in Rotalink's new full range catalogue which is available in downloadable PDF format or as a 80-page full colour resource complete with additional application specific technical information.
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