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igus® México S. de R.L. de C.V.

Boulevard Aeropuerto 160

Col. Corredor Industrial Toluca-Lerma

Toluca, C.P 52004

+52 728 2843185
+52 728 2843185
MX(ES)

Lightweight and maintenance-free pillow block bearings in the rotor head for ultralight gyrocopters

Reliable and vibration-dampening: iglidur plain bearings and igubal pillow block bearings in the rotor head

manus® 2007

El iglidur® G es la solución ideal para esta cabeza del rotor. Las hélices sustentadoras giran aproximadamente 400 veces por minuto y efectúan movimientos oscilantes de 30° máx. En el sistema se encuentran dos Cojinetes de plástico y dos arandelas de iglidur® G.
La cabeza del rotor puede maniobrarse en el eje longitudinal tanto como en el eje transversal. Sin embargo, los movimientos de mando ocurren sólo ocasionalmente. Aquí, cuatro Cojinetes y arandelas soportan la cabeza. Otros Cojinetes absorben las rotaciones de la palanca de freno. Además, en el sistema de mando, dos Cojinetes de pedestal igubal® se encargan de amortiguar las vibraciones y de compensar los errores de alineación.
Los criterios principales que hicieron votar a favor de todos los productos igus® utilizados son el muy reducido peso y la ausencia de mantenimiento.

Walter Schwarz, Schwarz Industrieservice, Schwabach (Alemania)

Profile

  • What was needed: iglidur plain bearings, igubal pillow block bearings
  • Requirements: A lightweight and reliable bearing for the rotor head and brake lever was sought.
  • Industry: Aerospace, aviation industry
  • Success for the customer: The decision for the bearings resulted from several reasons: They are particularly vibration-dampening, insensitive to dust, low-maintenance, compact and especially light. In addition, they have high strength values and convinced the customer with their low cost.
Rotor head

Problem

For this ultra-light gyroplane, Schwarz Industrieservice was looking for a suitable bearing for the rotor head. The rotor blades rotate dynamically at approx. 400 revolutions per minute, performing oscillating movements of max. 30°. A grease lubrication device is provided for this purpose. The gimballed rotor head can be steered around the longitudinal and transverse axis. Only occasional steering movements occur in the process. An initial filling with grease is sufficient. A rotor brake must brake the rotor speed from approx. 200 revolutions per minute to standstill. The rotary movement of the brake lever also had to be supported.

Solution

For the bearing of the longitudinal and transverse axis of the rotor head, four plain bearings and thrust washers made of the material iglidur G were chosen. Two iglidur plain bearings were also used for the rotary movement of the brake lever for the rotor brake. The braking torque is absorbed by two iglidur thrust washers. For the control of the rotor head, two igubal pillow block bearings are used, which are vibration-dampening and compensate for misalignments.
The decision for the bearings resulted from several reasons. It is particularly vibration-dampening, insensitive to dust, low-maintenance, compact and especially light. In addition, they have high strength values. Finally, the cost-effective prices were also convincing for the choice of the iglidur G plain bearings.

Rotor head

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igus® GmbH puntualiza que no vende ningún producto de las empresas Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM, Parker, Bosch Rexroth, SEW, Siemens, Stöber y cualquier otro fabricante mencionado en esta página web. Los productos que ofrece igus® S.L.U. son los de igus® GmbH.