Rotalink adds new high performance models to spur ovoid gearbox range

Written by: Laura Hopperton | Published:
Rotalink expands spur ovoid gearbox range with three new high performance models

Rotalink has expanded its spur ovoid gearbox range with three new progressively sized and torque rated models that feature ultra-polymer gears and 4-point mounting with ball race front and rear support bearings.

Targeted at high performance and low noise miniature power transmission and positioning applications, the new 312, 332 and 362 models offer output torques of 1.3, 3.0 and 5.0Nm respectively. They combine to bridge the performance gap between Rotalink's entry level spur-ovoid gearboxes and its advanced, higher power spur-planetary ovoid models.

According to the Crewkerne based firm, the new devices offer users an increased and more flexible choice of standard range gearboxes with nominal ratios that range from 6:1 to around 800:1 depending upon the model. The lower ratios are suitable for applications where a moderate motor input speed is desirable.

The zinc plated pressed steel gearbox case used in the new models all feature Rotalink's 4-hole fixing mounting arrangement, which is optimised to provide higher output shaft stiffness and smoother speed than traditional 2-hole fixings which can deflect or oscillate under load.

The new models also feature high strength and lightweight ultra-polymer gear materials on stainless steel shafts, which Rotalink claims contributes to a higher power density rating than steel gear equivalents, with the added benefit of low mechanical noise.

Supported with large front and rear ball race bearings, the output shaft diameters are 6, 8 and 10mm. As with all Rotalink ovoid gearboxes, the new models are lubricated withMobilgrease 28, which is optimised for low and high temperature performance and specified for heavily loaded mechanisms used in aviation and other demanding application areas.


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