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Spiracon is a high efficiency planetary roller screw which converts rotary motion to linear movement. Spiracon provides high dynamic load carrying capability up to 1200kN with high duty, life and positional accuracy ratings.
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In roller screws, the load is transmitted from the nut to the shaft through the barrelled surfaces of all the engaged rollers. The diameter of the contact surface is substantially increased as is the number of points of contact.
Benefits
High load ratings (SR-SV)
Very high rotational speed (SR)
High acceleration and deceleration rates (SR)
Long life at high cycling rates (SR)
High reliability (SR-SV)
Resistance to hostile surroundings (SR)
Ability to survive shock loads (SR)
Small displacements with very good repeatability (SV)
Rotating the nut when speed becomes critical (SR)
Frequently removing the nut from the screw shaft (SR-most SV)
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Nook Planetary Roller Screws are used in the most demanding and precise linear motion applications. With a greater number of contact points a roller screw provides stiffness and higher load ratings compared to a ball screw.
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The screws with satellite rollers Rollvis are elements of machines of precision which are used to transform rotation movements into linear displacements and reciprocally.
The elements of bearing are threaded rollers laid out between the screw and the nut. The great number of contact points makes it possible the screw with satellite rollers to support very strong loads
The programme of sale of Elitec includes/understands screws with satellite rollers without recirculation of the rollers (constructions RV and BRV) and with recirculation of the rollers (construction RVR), that in various classes of precision.
In partnership with various types of nuts, Elitec delivers screws to satellite rollers for all the cases of application where high number of revolutions and/or strong loads are necessary.
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Roller screw jack provide higher performance compared to ball screw jacks. Ideally suited to applications where a high dynamic load, high accuracy, high speed and a long life are required.
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Roller screw jack provide higher performance compared to ball screw jacks. Ideally suited to applications where a high dynamic load, high accuracy, high speed and a long life are required.
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