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Trapezoidal screws

Excellence in all we do

UMBRAGROUP’s driving force has always been the satisfaction of our customers and their requirements. Strengthened by a global leadership in the production of recirculating ball screws, we have applied our specialized skills and technologies to the design and production of high precision acme/trapezoidal screws mainly used in aerospace engine thrust reversers.


Thanks to the considerable experience gained in the special processes of heat treatment, galvanic treatment and non-destructive testing, we proffer complete technical assistance and productive efficiency, with significantly shorter lead times. UMBRA-branded acme/trapezoidal screws are characterized by:

  • Utmost reliability;
  • Competitive delivery times;
  • Absolute precision.

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