ZUAZO SA

What ZUAZO SA does

BSG Zuazo, S.A. is a precision mechanical components manufacturer founded in 1971 and headquartered at the Parque Tecnológico de Álava (Miñano Mayor), in the Basque Country, Spain. The company designs and manufactures two core product lines: high precision ground ball screws (precision grades ISO1, ISO3, and ISO5 per UNE ISO-3408, ranging from 16 mm to 300 mm in diameter and up to 16,000 mm in single-piece length) and spiral bevel gears (up to 850 mm diameter, module up to 18.5, finished to DIN 3965 quality 4–8 via HPG-S gear cutting, profile grinding using Klingelnberg/Oerlikon/Gleason equipment, and lapping). It is certified to ISO 9001:2015 and AS9100, and operates from a ~6,000 m2 climate-controlled facility with CMM-based dimensional verification and single/real flank contact pattern testing.

The company's revenue model combines one-time sale of engineered ball screws and spiral bevel gears with professional-services revenue from engineering and design, reverse engineering, repair/refurbishment, and collaborative new product development. It reaches customers primarily through an enterprise field-sales motion executed via direct technical consultation and an international partner network, complemented by participation in the leading global precision machine tool fairs (EMO, CIMT, CCMT, AMB, Hannover Messe) and downloadable PDF product catalogs. End markets are diversified across machine tools (primary), aerospace actuators, high dynamic positioning systems, plastic injection machinery, construction machinery, and steel industry equipment.

BSG Zuazo is a subsidiary within Xubi Group, a diversified Basque industrial conglomerate that also includes Xubi Engranajes (gears), Renogear (slewing bearings), and Osatu (machining), enabling cross-marketing and bundling of complementary precision transmission components. The company is a member of AFM (Basque machine tool cluster) and HEGAN (Basque aerospace cluster), and receives co-financing for R&D through the Basque Government's HAZITEK program under ERDF 2021-2027.

Name

ZUAZO SA

Legal name

BSG Zuazo, S.A.

Website

https://zuazo.net

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

1–10 employees

Short description

BSG Zuazo, S.A. is a Basque Country (Spain) precision manufacturer founded in 1971 that designs and produces high precision ground ball screws and spiral bevel gears for machine tool, aerospace, and heavy industrial customers, operating from a ~6,000 m2 ISO 9001 and AS9100-certified facility.

Ownership category

akta.pro rank

Product category

Precision Mechanical Transmission Components

NAICS

Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612), Machine Shops (332710)

SIC

Ball & Roller Bearings (3562)

akta.pro primary industry

Linear Motion & Mechanical Power Transmission (Ball/roller screws, linear guides, bearings, couplings) (IMAHAGAM)

Keywords

• Precision ball screws
• Spiral bevel gears
• Mechanical transmission components
• Aerospace machining parts
• Machine tool components

Headquarters

HQ city

Miñano Mayor

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain

Revenue model

1. Ball Screw Sales: Design, manufacturing and sale of high precision ground ball screws for industrial applications including machine tools, aerospace, plastic injection, and positioning systems.
2. Spiral Bevel Gear Sales: Manufacturing and sale of spiral bevel gears for machine tools, construction machinery, and steel industry applications.
3. Engineering and Design Services: Technical and design department providing calculations and component definition services for customer-specific solutions.
4. Technological Assistance and Repair: Analysis of existing ball screws and gears, repair services, and new element manufacturing for components that have reached end of useful life.
5. New Product Development: Collaborative design analysis with customers for different applications, identifying and defining parameters to meet demanding specifications.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

BSG Zuazo designs, manufactures and sells high precision ground ball screws (16mm-300mm diameter, up to 16,000mm length in a single piece, precision grades ISO1/ISO3/ISO5 per UNE ISO-3408) and spiral bevel gears (up to 850mm diameter, up to module 18.5, quality 4-8 per DIN 3965) using HPG-S gear cutting, profile grinding and lapping processes. The company complements these physical products with engineering and gear design, technological support/maintenance (analysis and repair of end-of-life components), and collaborative new product development for industrial OEMs in machine tools, aerospace, plastic injection, construction machinery, high dynamic positioning and steel industry.

Product overview

BSG ZUAZO offers a portfolio of precision mechanical transmission components centered on two core products: high precision ground Ball Screws (ranging from Ø16mm to Ø300mm diameter, up to 16,000mm single-piece length) and Spiral Bevel Gears (maximum Ø850mm, module up to 18.5mm). The company provides these as both standalone products and as part of integrated engineering services including design consultation, reverse engineering, repair, and new product development. All products are supported by technical consultancy and certified quality verification.

Differentiator

Problem solved

Functional benefit

Products and services

• High Precision Ground Ball Screws (Husillos a Bolas) High precision ground ball screws for industrial linear transmission, available from 16 mm to 300 mm diameter and up to 16,000 mm length in a single piece, in ISO1, ISO3 and ISO5 precision grades per UNE ISO-3408. They are used as the linear transmission element on X, Y, Z axes of CNC machine tools and in high dynamic positioning systems, plastic injection machines, aerospace actuators, steel industry and construction equipment.
• Spiral Bevel Gears (Engranajes Cónicos Espirales) High efficiency spiral bevel gears for power transmission, manufactured up to 850 mm diameter with normal module up to 18.5 mm. Production methods include HPG-S gear cutting (up to 2200 mm, quality 6 per DIN 3965), profile grinding on Klingelnberg, Oerlikon and Gleason equipment (up to 850 mm, maximum module 18.5, quality 4 per DIN 3965), and lapped finishing (up to 650 mm, module up to 12, quality 8 per DIN 3965). Sold to machine tool, construction machinery and steel industry OEMs.
• Engineering and Gear Design Services Technical and design department providing calculations and component definition for customer systems, including reverse engineering, to support OEM customers developing new ball screw or spiral bevel gear applications. Sold to industrial OEMs requiring engineered-to-order transmission solutions.
• Technological Support and Maintenance Services Analysis of existing ball screws and gears, repair services and manufacturing of new elements for ball screws and spiral bevel gears that have reached end of useful life. Sold to industrial customers running installed bases of precision transmission components in machine tools, aerospace, steel industry and related sectors.
• New Product Development Services Collaborative design analysis with customers for ball screws and bevel gears across different applications, identifying and defining parameters to meet demanding specifications for OEM customers developing new precision transmission applications.

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• AFM (Machine Tool Cluster)coreOthersBSG Zuazo is a member of AFM, the machine tool cluster in the Basque Country. This membership provides networking opportunities, industry collaboration, and association with the regional machine tool industry ecosystem.
• HEGAN (Aerospace Industries Cluster)coreOthersBSG Zuazo is a member of HEGAN, the aerospace industries cluster in the Basque Country. This membership connects the company with the aerospace industry ecosystem and provides collaborative opportunities within the sector.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• NSK Ltd. Global Japanese leader in ball screws and bearings. Directly comparable to BSG Zuazo in precision ball screw manufacturing, including sizes, accuracy grades, and machine-tool/aerospace end markets.
• Hiwin Technologies: Taiwanese manufacturer of ball screws, linear guides, and linear actuators. Direct competitor in precision ground ball screws across machine tool and automation applications.
• Ewellix (formerly SKF Linear Motion): Swedish specialist in linear motion including ball screws and actuators. Comparable niche specialist serving machine tool, automation, and medical customers.
• Steinmeyer Feinwerktechnik: German precision ball screw specialist. Comparable niche-scale manufacturer focused on high-accuracy ground ball screws for machine tool, semiconductor, and metrology applications.
• Nachi-Fujikoshi Corporation: Japanese manufacturer of bearings and ball screws. Overlaps with BSG Zuazo in precision ball screws serving machine tool and industrial machinery customers.
• THK Co., Ltd. Japanese linear motion specialist and global market leader in LM guides and ball screws. Comparable in product category, accuracy class offerings, and machine-tool/aerospace customer base.
• Kuroda Precision Industries: Japanese precision ball screw manufacturer with strong machine tool and semiconductor exposure. Closely comparable in product positioning, accuracy grades, and customer verticals.

Broad incumbents

• Bosch Rexroth AG: German motion control and drive specialist offering ball screws, linear guides, and gear technologies. Overlaps in ball screw and bevel gear supply but serves a much broader portfolio.
• SKF Group: Swedish bearings and motion technologies group. Overlaps with BSG Zuazo in ball screws and bearings, but as part of a much larger diversified industrial portfolio.
• Schaeffler AG (INA/FAG): German bearings and linear motion powerhouse. Competes in ball screws and precision transmission components as part of a wide industrial portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/zuazo-sa

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ZUAZO SA