# ISAR GETRIEBETECHNIK GMBH & CO. KG

> Reliable supplier of high-precision gearboxes, gears, gear components, gearbox housings, and high-speed test rig gearboxes. Design, engineering and manufacturing of high-speed gearboxes, customized high-tech gearboxes, and high-speed test bench equipment. Specialist in custom special gearboxes and precision gear components for small series and prototypes.

ISAR GETRIEBETECHNIK GMBH & CO. KG is a specialized engineering company and reliable supplier of custom gearboxes, gears, gear components, gearbox housings, and high-speed test rig gearboxes, based in Ismaning near Munich, Germany. The company develops, calculates, designs and manufactures customer-specific gearboxes — from single prototypes to small series — for the most demanding applications in aerospace, automotive, commercial vehicles, and e-mobility.

## Products

### High-Tech Gearbox Components
Manufacturing of all kinds of precision toothed components for prototypes and small series.
- Diameter range: Ø 1 to 1,000 mm
- Typical batch size: 1 to 99 pieces
- Highest gear quality, twist-free profile, smallest run-out
- Alignment of different toothings, documented assembly
- Application samples: electric engine pinion shafts, high-speed shafts, gear shift actuators, toothed brake discs, staged planets, shafts with manifold and aligned toothings

### Customized Gearboxes – Prototypes & Series
Customer-specific gearbox solutions for the most demanding requirements.
- Gearbox types: cylindrical gears, planetary gearboxes, angular/bevel/hypoid gearboxes, worm gearboxes, light-weight gearboxes, carbon shafts
- Typical power: 0.1 to 2,000 kW
- Typical batch size: 1 to 99 pieces
- Realized projects (selection):
  - Aircraft Actuator Drive: nE = 3,000 rpm, vA = 680 mm/min (i = 550)
  - Aircraft Propulsion Gearbox: nE = 5,500 rpm, nA = 1,900 rpm, Pmax = 100 kW
  - Light-Weight Gearbox for E-Mobility (water-cooled): nE = 6,000 rpm, nA = 25,000 rpm, P = 20 kW
  - Shift Actuator for Commercial Vehicle
  - E-Drive for Small Vehicle (summation gear, 2-stage): nE = 2 × 4,000 rpm, nA = 909/1,840 rpm, Pmax = 10 kW
  - Aircraft Rescue Hoist: nE = 12,000 rpm (over speed 30,000 rpm), nA = 300 rpm, P = 3.5 kW
  - Electric Powertrain for Commercial Vehicle: 2 gears, park lock, pneumatic shifting, nE = 13,000 rpm, Pmax = 225 kW
  - E-Drive for Commercial Vehicle: Input 1× 180 kW / 2× 90 kW, nE = 8,000 rpm, nA = 790 rpm
  - Drive Unit for Large Tooling Machine

### High-Speed Test Equipment
Development and manufacturing of test bench gearboxes for extreme speeds.
- Applications: high-speed dynos, turbine test stands, shiftable test rigs, gearbox testing, FZG gear test rigs (gear endurance and flank damage testing), centrifugal tests
- Speeds up to and over 100,000 rpm
- Typical power range: 50 to 3,000 kW
- Realized projects (selection):
  - nE = 12,500 rpm, nA = 25,000 rpm, P = 250 kW
  - nE = 14,000 rpm, nA = 40,000 rpm, P = 250 kW
  - nE = 4,790 rpm, nA = 17,280 rpm, P = 1.9 MW (shiftable, 1.1° angular offset)
  - nE = 3,000 rpm, nA = 40,000 rpm, P = 56 kW
  - nE = 4,500 rpm, nA = 3,560 rpm, P = 600 kW (3.5° beveloid gears)
  - nE = 11,500 rpm, nA = 24,000 rpm, P = 250 kW
  - nE = 12,000 rpm, nA = 160,000 rpm, P = 85 kW
  - High-Speed Test Rig Gearbox: Input 300 kW, nE = 3,000 rpm, nA = 70,000 rpm
  - 3-Gears Test Rig Gearbox with two output shafts: Input 580 kW, nE = 4,500 rpm, nA = 2,300/3,500/12,000 rpm
  - 3-Gears Test Rig Gearbox (compact parallel shaft design, low oil consumption): Input 1.5 MW, nE = 1,800 rpm, nA = 3,600/10,000/20,000 rpm

## Branches / Industries Served
- Automotive industry
- Aircrafts / Aerospace
- Commercial vehicles
- Special vehicles
- E-mobility (all power classes)
- Racing cars
- Machine tools
- General product development

## Contact & Company Information

**ISAR GETRIEBETECHNIK GMBH & CO. KG**
Muenchener Str. 101 – Building 38
D-85737 Ismaning, Germany

- Phone: +49 89 127 66 88 0
- Email: contact@isar-gears.com

**Contact Persons:**
- Dr.-Ing. Albert J. Wimmer – CEO / General Manager
- Dipl.-Ing. Tobias Pletzer – Head of Design and Development

**Legal Information:**
- Commercial Registry: Amtsgericht München, HRA 92707
- Sales Tax Identification Number: DE261471260
- General Partner: Isar.Pro GmbH, Amtsgericht München, HRB 256168

## Pages

- [Products / Home](https://www.isar-gears.com/index.html): Overview of all products and services
- [About Us](https://www.isar-gears.com/about/index.html): Company profile, values, branches, extract of customer list
- [Jobs](https://www.isar-gears.com/jobs/index.html): Open positions in development, calculation, design and manufacturing
- [Contact](https://www.isar-gears.com/contact/index.html): Contact persons, team, address, imprint, general terms & conditions
- [German version](https://www.isargetriebe.de/)
- [Japanese version](https://www.isargears.jp/)