Stüwe

What Stüwe does

Stüwe GmbH & Co. KG is a German manufacturer of mechanical components for industrial drive technology, founded in 1948 and headquartered in Hattingen (Ruhr), Germany. The company specializes in friction-based shaft-hub connections and related power-transmission components, with a product portfolio built around three core families: (1) friction connections including mechanical and hydraulic shrink discs, tension sets, shaft couplings, and cardan shaft connections; (2) the Rotorlock (SRL) locking system for wind turbine and industrial rotor applications; and (3) brake systems comprising the active/passive SBS series (with SBS-H and SBS-L variants) and SBD industrial brake discs, supplemented by SLN shaft nuts and the Stop Turn Block System for maritime propeller shafts rated to 25 MW. The company developed the first mechanical shrink disc in 1968 and has since built a portfolio of specialized solutions for high-torque, safety-critical applications.

Stüwe serves B2B industrial customers across at least eight use-case segments, with wind power and maritime/shipbuilding highlighted as primary verticals alongside crushing and shredding, conveyor systems, measurement and test bench construction, general drive technology, metallurgy and rolling mills, and mixing/process technology. Its business model is direct B2B sales with no online shop; orders are taken via telephone or email, and the company emphasizes co-development of customized solutions with customers' engineers. Distribution is global from the Hattingen production facility, supported by the wholly-owned Swiss subsidiary Stüwe Switzerland AG in Gams and active trade show participation in European and Indian wind and maritime industry events.

The company is structured as a GmbH & Co. KG and is privately held with no disclosed institutional investors, funding rounds, or M&A activity. It maintains ISO 9001, 14001, and 45001 certifications, operates with 51–100 employees, and reports no app, API, or software product surface. Revenue, customer logos, and detailed financial metrics are not publicly disclosed.

Name

Stüwe

Legal name

Stüwe GmbH & Co. KG

Website

https://stuewe.de

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

51–100 employees

Short description

Stüwe GmbH & Co. KG is a German manufacturer, founded in 1948 in Hattingen, specializing in mechanical drive technology components including friction shaft-hub connections, shrink discs, brake systems, and rotor locks. It serves B2B industrial customers worldwide, primarily in wind power, maritime, and heavy industrial sectors, via direct sales and custom engineering.

Ownership category

akta.pro rank

Product category

Mechanical Drive Components

NAICS

Mechanical Power Transmission Equipment Manufacturing (333613), Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)

SIC

Special Industry Machinery, Nec (3559)

akta.pro primary industry

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

akta.pro secondary industries

Brakes, Clutches & Couplings (Electromagnetic Brakes, Torque Limiters) (IMAGACAK), Brake Friction & Rotors (Pads/Shoes/Discs/Drums) (IMACAIAE)

Keywords

• Mechanical drive components
• Shrink disc technology
• Friction shaft connections
• Industrial brake systems
• Shaft coupling solutions

Headquarters

HQ city

Hattingen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Industrial Mechanical Components Sales: Sale of brakes, friction connections, rotor locks, and shaft nuts to B2B customers worldwide. Products are manufactured in Hattingen (Ruhr) and sold directly to industrial customers. No online shop; orders placed by telephone or email.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Stüwe GmbH & Co. KG manufactures mechanical components for drive technology, specializing in friction-based shaft-hub connections (Reibschlussverbindungen) including mechanical and hydraulic shrink discs, tension sets, shaft couplings, and cardan shaft connections. The portfolio also covers brake systems (SBS series active/passive brakes and SBD industrial brake discs), rotor lock devices, shaft nuts, and the Stop Turn Block System for maritime propeller shafts up to 25 MW. Products are designed and produced at the Hattingen (Ruhr) facility and sold directly to industrial B2B customers worldwide.

Product overview

STÜWE GmbH & Co. KG is a mechanical components manufacturer specializing in friction-based shaft-hub connections and brake systems for drive technology applications. The product portfolio includes three core product families: (1) Friction Connections including shrink disks, tension sets, shaft couplings, and cardan shaft connections; (2) Rotorlock locking devices; and (3) Brake systems comprising active/passive SBS brake systems with SBS-H and SBS-L variants, plus SBD industrial brake discs. Supporting products include SLN shaft nuts and the Stop Turn Block System for maritime propeller shafts rated up to 25 MW. The company also offers custom/special solutions alongside its standard product range. Products serve diverse industries including wind power (thousands of shrink disks annually), maritime, crushing technology, conveyor systems, measurement/testing, metallurgical/rolling mill, mixing/process engineering, and general drive technology.

Differentiator

Problem solved

Functional benefit

Products and services

• STÜWE Reibschlussverbindungen (Friction Connections) Friction-based shaft-hub connections designed for the secure transmission of maximum torque in industrial applications.
• STÜWE Rotorlock Type SRL Reliable locking and closing mechanisms for rotor applications in wind turbines and industrial machinery.
• STÜWE Bremssysteme Type SBS Active and passive brake systems for transmitting maximum braking torques in industrial applications.
• STÜWE Industriebremsscheiben Type SBD Industrial brake discs for a wide range of industrial applications including maritime, wind power, and heavy machinery.
• STÜWE Wellenmutter Type SLN Shaft nuts providing reliable axial component and bearing securing in mechanical assemblies.
• STÜWE Stop Turn Block System Propeller shaft system designed for main power output up to 25 MW in large yachts, cruise ships, ferries, and commercial vessels.
• STÜWE Schrumpfscheiben (Shrink Disks) Mechanical shrink disks for creating friction-based shaft connections, with standard and special solutions available.
• STÜWE Spannsätze (Tension Sets) Mechanical tension sets for securing components on shafts.
• STÜWE Wellenkupplungen (Shaft Couplings) Mechanical shaft couplings for connecting drive components.
• STÜWE Gelenkwellenanschlüsse (Cardan Shaft Connections) Cardan shaft connection solutions for drivetrain applications.
• STÜWE Wind Power Products Highly specialized mechanical components engineered for wind turbine applications.

Quantifiable outcome

• Thousands of shrink discs annually ensure wind turbines worldwide operate safely and reliably
• +1 more outcomes

Segments8 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators3 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• SEW-Eurodrive: SEW-Eurodrive is a much larger German drive technology incumbent offering gearmotors, drive electronics, and mechatronic systems. While it spans a broader portfolio, it competes with Stüwe in industrial drive component applications and could expand into specialized shrink disc/brake niches at scale.
• Flender (Siemens): Flender, now part of Siemens, is a leading German manufacturer of mechanical gear units, couplings, and generators for wind, marine, and industrial applications. It is a broad incumbent in overlapping end markets and could absorb Stüwe's specialty product lines.
• Bonfiglioli: Bonfiglioli is an Italian power transmission specialist offering gearboxes, gearmotors, and drive systems for industrial, wind, and marine applications. It overlaps with Stüwe in wind and marine end markets and competes for industrial OEM design wins.
• Rexnord: Rexnord is a US-based power transmission and motion control manufacturer offering bearings, gears, couplings, and industrial chain. It serves many of the same industrial verticals as Stüwe and competes in mechanical drive component procurement globally.

Direct peers

• Kendrion: Kendrion is a Dutch-headquartered industrial brake and clutch manufacturer with a portfolio of electromagnetic and spring-applied brakes. It competes directly with Stüwe's brake systems in industrial, marine, and energy applications.
• NORD Drivesystems: NORD is a German family-owned drive technology manufacturer producing gear units, motors, and drive electronics. It overlaps with Stüwe's general drive technology segment and competes for similar industrial OEM customers, though with a broader motor and electronics portfolio.
• Bauer Gear Motor: Bauer Gear Motor is a German specialist in gear motors and drive solutions for industrial applications. It overlaps with Stüwe in industrial drive component applications, particularly in demanding industries like crane, marine, and conveyor systems.
• Ringspann: Ringspann is a direct competitor offering shrink discs, shaft locking devices, industrial brakes, and couplings. Like Stüwe, it serves wind, marine, and general industrial markets with a comparable high-torque mechanical power transmission portfolio, making it the closest head-to-head peer.
• Mayr Antriebstechnik: Mayr is a German manufacturer of safety brakes, clutch brakes, and torque limiters. It directly competes with Stüwe's SBS brake system line in industrial and elevator applications and shares a similar Mittelstand family-owned structure.

Emerging players

• Watt Drive (WEG Group): Watt Drive, part of WEG Group, manufactures gear units and special drives for industrial applications. It competes with Stüwe in niche industrial drive markets and brings the backing of a larger industrial group for cross-selling.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInde.linkedin.com/company/stüwe-gmbh-co-kg

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 Stüwe