Precision ball screws, rolling bearings, electrospindles and electromechanical actuators for aerospace and industry.
UMBRAGROUP S.p.A.
Foligno (IT) · Albanella (IT) · Terni (IT) · Spello (IT) · Perugia (IT) · Eltmann (DE) · Everett, WA (US) · Saginaw, MI (US)New on Amplifa
About UMBRAGROUP
UMBRAGROUP S.p.A., headquartered in Foligno (Italy), specializes in the development and manufacture of high-precision drive systems: ball screws, medium-sized and large rolling bearings, electrospindles, milling heads, electric motors and electromechanical actuators. The vertically integrated group covers the entire value chain – from design with FEM analysis and life calculation, through hot rolling of bearing steel, to the production of precision balls to ISO 3290 at its German plant in Eltmann. Materials used include 100Cr6, 100CrMo7, SAE case-hardening steels and stainless steels such as Cronidur 30 and AISI 440C. The products serve aircraft manufacturers, manufacturers of integrated systems, airlines and machine tool builders for applications ranging from milling and grinding to additive manufacturing. In addition, the company offers aftermarket services with maintenance, overhaul and repair, including for third-party products, and delivers worldwide.
- Site
- Foligno (PG), Italien
- Processes
- Ball screws for aerospace and industry, Rolling bearings in medium and large sizes – manufacturing, Hot rolling of bearing steel, Electromechanical actuators – manufacturing, Electrospindles and milling heads – manufacturing, Electric motors – manufacturing, Maintenance, overhaul and repair (aftermarket) for actuators, bearings, ball screws,, Redesign and new production of non-repairable products
- Materials
- 100Cr6, 100CrMnSi6-4, 100CrMo7-3, 100CrMo7, SAE4320 (case hardening), SAE3311 (case hardening), SAE8620 (case hardening), Cronidur 30 (stainless)
- Certificates
- ISO 9001, AS/EN 9100, ISO 14001, EASA (approval according to EASA and international aviation authorities FAA,, EN 9100 (AS/EN 9100), Nadcap, EASA / FAA / TCCA approval
- Founded
- 1993
- 01
Design & Engineering (FEM, life calculation)
- 02
Hot rolling of bearing steel
- 03
Heat treatment / case hardening
- 04
Machining & grinding of rolling components
- 05
Production of precision balls (Eltmann)
- 06
Assembly of bearings, ball screws, spindles & actuators
- 07
Testing (NDT, CMM, roundness, roughness)
- 08
Aftermarket: maintenance, overhaul, repair
Materials & Processes
100Cr6
Standard rolling bearing steel according to ISO 683-17 with traceability back to the ingot (3.1 certificates).
100CrMnSi6-4
Rolling bearing steel for increased demands on hardenability and dimensional stability.
100CrMo7
Rolling bearing steel with molybdenum addition for demanding applications.
100CrMo7-3
Rolling bearing steel for large cross-sections and high load capacity requirements.
SAE8620
Case-hardening steel for components with a tough surface layer.
Cronidur 30
Stainless steel for corrosion-critical applications.
AISI 440C
Stainless, through-hardening steel for bearing components.
M50
High-speed steel for bearings subjected to high temperatures, typical aerospace.
Brass (cages)
Cage material for bearings with high load capacity.
Polyamide (cages)
Plastic cages for quiet running and low friction.
Locations
Foligno (HQ)
ITHeadquarters, Manufacturing & Aftermarket
- Ball screw manufacturing
- Bearing assembly
- Electrospindles
Albanella (SA)
ITResearch Center & EMS – Electro Motor Solutions
- Electric motor manufacturing
Terni
ITManufacturing (Serms srl)
Spello
ITManufacturing (CO.ME.AR / B.S.P. srl)
Eltmann
DEManufacturing of precision balls (Präzisionskugeln Eltmann GmbH)
- Materials
- 100Cr6
- Ball production to ISO 3290
Everett, WA
USManufacturing (Umbra Cuscinetti Inc.)
Saginaw, MI
USLinear Motion LLC (Thomson® Aerospace & Defense)
Components & Products
Inside the production
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Ball screws for aerospace and industryEngineering | – | – | – | – | 100Cr6, 100CrMnSi6-4, 100CrMo7-3, 100CrMo7 |
| Rolling bearings in medium and large sizes – manufacturingForming | – | – | – | – | 100Cr6, 100CrMnSi6-4, 100CrMo7-3, 100CrMo7, SAE4320, SAE3311, SAE8620, Cronidur 30, M50, AISI440C, Brass, Steel, Bakelized fabric, Polyamide |
| Hot rolling of bearing steelForming | – | – | – | – | 100Cr6, 100CrMnSi6-4, 100CrMo7-3, 100CrMo7 |
| Electromechanical actuators – manufacturingAssembly | – | – | – | – | – |
| Electrospindles and milling heads – manufacturingAssembly | – | – | – | – | – |
| Electric motors – manufacturingAssembly | – | – | – | – | – |
| Maintenance, overhaul and repair (aftermarket) for actuators, bearings, ball screws,Testing | – | – | – | – | – |
| Redesign and new production of non-repairable productsEngineering | – | – | – | – | – |
| Design of bearings to customer requirements including FEM analysis and life calculationEngineering | – | – | – | – | – |
| Testing and inspection: NDT (Nital etching, metalloscope, ultrasonic), metallography, microhardness,Testing | – | – | – | – | – |
| Production of precision balls (spheres) to ISO 3290Forming | – | – | – | – | 100Cr6 |
| Certifications: CoC, FAI, PPAP; QM system ISO 9001, AS/EN 9100, EASA, ISO 14001Testing | – | – | – | – | – |
Additional services
Quality & Certifications
The quality management system is certified to ISO 9001, AS/EN 9100 and ISO 14001 and recognized by EASA and international aviation authorities (FAA, CCAC/CAAC, TCCA). The testing equipment includes CMM, roundness and roughness measuring devices, profilers, NDT methods (Nital etching, ultrasonic, metalloscope), metallography, microhardness testing and chemical analysis; optional certificates CoC, FAI and PPAP are offered.
| Evidence | Foligno (HQ) | Everett, WA | Saginaw, MI | Terni | Spello | Perugia | Eltmann | Albanella (SA) |
|---|---|---|---|---|---|---|---|---|
| ISO 9001 | ||||||||
| EN 9100 (AS/EN 9100) | ||||||||
| ISO 14001 | ||||||||
| Nadcap | ||||||||
| EASA / FAA / TCCA approval |
History
- 1972
Vision and founding idea of the group of entrepreneurs around Valter Baldaccini.
- 1993
UMBRAGROUP established as a company; since then organic and acquisition-based growth.
- heute
World market leader in ball screws for aerospace with locations in Italy, Germany and the USA.