Rubber vibration elements
Rubber suspension elements
ROSTA rubber suspension elements are torsion-elastic spring assemblies: four pre-tensioned Rubmix 10 rubber cords between two square profiles rotated by 45° — the base for pendulum suspensions of vibrator motors, torque supports, torsional springs and impact absorption, in the DR, DK, DW and DO series.
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ROSTA technology
Torsion-elastic spring assemblies with Rubmix 10 rubber.
Marine aluminium profile
Extruded profiles, seawater resistant (DIN 1725).
Multi-purpose
Pendulum suspension, torque support, torsional spring, impact absorption.
Long service life
No wear parts, no lubrication, easy installation.
Technical support
We pick type and size by torque and oscillation angle.
Range figures
Values differ per model — confirmed on the datasheet at quotation.
Where they are used
Pendulum suspensions
Vibrator motors mounted as pendulums.
Torque supports
Taking gearmotor reaction torque.
Torsional springs
Constant pressure on parts and belts.
Impact absorption
Damping shocks on equipment.
FAQ — Rubber suspension elements
How does the torsion-elastic element work?
Rotating the inner profile compresses the rubber cords between the profiles — the result is a friction-free torsion spring, with no bearings and no maintenance.
How do I choose the size?
By the required torque (Md) at the application oscillation angle — torque tables go from 0.4 Nm to hundreds of Nm; we make the selection.
Does it survive outdoors / harsh environments?
The extruded aluminium profiles are seawater resistant (DIN 1725), and from size 60 up the construction is steel.
Got a torsional spring application?
Tell us the torque and working angle — we pick the right series and size.
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