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This section provides an overview for transmission systems as well as their applications and principles. Also, please take a look at the list of 7 transmission system manufacturers and their company rankings. Here are the top-ranked transmission system companies as of January, 2025: 1.Tremec, 2.Schaeffler Group USA Inc., 3.Allison Transmission Holdings, Inc.
Table of Contents
A transmission system, or simply a transmission, is a critical component in vehicles that adapts the engine's power into usable torque and speed, delivering it to the wheels. Positioned between the engine's output shaft and the wheels' driving shaft, transmissions have evolved to meet the advancing performance demands of modern automobiles.
These systems come in various forms, including manual, automatic, and continuously variable transmissions, each offering distinct advantages and mechanisms for gear shifting.
Transmission systems enable gear adjustments to optimize torque and rpm based on driving conditions, enhancing efficiency and power. For instance, high gears are engaged for faster speeds on flat roads, while lower gears are selected uphill to boost power and conserve fuel. Electric motors benefit from consistent power delivery across RPM ranges, further expanding transmission applications.
The transmission system operates on the principle of gear ratios, where different-sized gears adjust the vehicle’s speed and force. Larger gears increase torque for uphill power, while smaller gears raise rpm for highway driving. This gear selection mechanism allows for optimal performance in various driving environments.
This concise explanation delves into the functional aspects of transmission systems, highlighting their role in vehicular operation, the underlying mechanics, and the variety available to suit different driving needs and preferences.
*Including some distributors, etc.
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Allison Transmission Holdings, Inc, founded in 1915 at Indiannapolis, USA is a manufacturer of automatic transmission systems for commercial duty vehicles and hybrid propulsion systems. The company specializes in transmission systems mainly for medium and heavy-duty commercial vehicles along with their unique hybrid propulsion system intended for city buses. The transmission products include Highway Series, Motorhome series, emergency vehicle series, rugged duty series and specialty series. The 1000 MH motorhome series is widely used in recreational vehicles for maximum performance. The transmission systems are used in agriculture, mining, defense, transportation and port services alongside many other transportation utility uses.
TREMEC, a division of Grupo KUO, S.A.B. de C.V., is a manufacturer of torque transfer solutions founded in 1964 and based in Novi, Michigan, USA. The company’s product portfolio includes components & subsystems, transmission systems, and technologies & capabilities used in the powertrain industry. The transmission systems in their portfolio include specialty drives, EV & HEV drive systems as well as passenger drive, and light, medium & heavy duty transmission systems. Its components & subsystems portfolio includes friction materials, transmission control units, clutch assemblies, gears & shafts, and solenoids.
Schaeffler Group USA Inc. (SGUS) is an American manufacturer and supplier of automotive products and solutions established in 1946 as the North American subsidiary of the Shaeffler Group, which operates globally. Based in Fort Mill, South Carolina, the company manufactures standard engine, transmission and chassis products such as torsion dampers, valve train systems, and camshaft phasing units. They also produce aftermarket repair solutions like clutch and release systems, as well as various industrial bearings and linear motion systems. SGUS primarily supplies the automotive sector, as well as the industrial operations of various industries including rail, green energy, and aerospace.
BorgWarner Inc., is an American automotive supplier headquartered in Auburn Hills, Michigan, established in 1928. The company designs and produces systems that advance the world towards eMobility, providing sustainable mobility solutions for the vehicle market. They also offer technologies and solutions for internal combustion, hybrid, and electric vehicles, catering to light, medium, and heavy-duty vehicles as well as off-highway applications. Guided by their core principles of inclusion, integrity, excellence, responsibility, and collaboration, they are moving toward achieving carbon neutrality by 2035. They operate 93 production facilities and technical systems across 22 countries and employs approximately 49,000 workers.
AISIN CORPORATION, established in 1965 and situated in Aichi, Japan, is a manufacturer and supplier of automotive parts as well as energy- and lifestyle-related products. In a significant move, Aisin Seiki Co., Ltd. and its subsidiary, Aisin AW Co., Ltd., combined its business operations on April 1, 2021, ushering in the new entity known as AISIN CORPORATION. Some of its products include transmissions, brakes, engine and car navigation systems, and air conditioning systems.
SKF UK is the British division of SKF, originally founded in 1907 and headquartered in Gothenburg, Sweden. SKF designs, develops, and manufacturers bearings, seals, lubrication systems, and services worldwide, with industrial and automotive segments, providing solutions for industries including aerospace, agriculture, transportation, food and beverage, general machinery, material handling, mining, energy, paper, and wind energy. SKF UK offers rolling bearings, mounted bearings, automotive seals, lubrication management, vehicle aftermarket services, waste electric products, and electronic equipment products as well as services including maintenance, remanufacturing, customization, and training.
Carraro, founded in 1932 and located in Campodarsego, Italia, is a manufacturer and supplier of transmission systems and gears for tractors and off-highway vehicles. The company produces specialized tractors, cylindrical gears, planetary drives, suspension axles, and steel gears. The products are applied in the agriculture, construction, material handling, automotive, and robotics industries. The company has earned the ISO 9001:2015, IATF 16949:2016, Authorized Economic Operator, ISO 14001:2015, and ISo 45001:2018 certifications.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Tremec |
34.8%
|
| 2 | Schaeffler Group USA Inc. |
14.8%
|
| 3 | Allison Transmission Holdings, Inc |
13.1%
|
| 4 | BorgWarner Inc. |
10.4%
|
| 5 | AISIN CORPORATION |
10.0%
|
| 6 | Carraro |
8.5%
|
| 7 | SKF |
8.4%
|
Derivation Method
The ranking is calculated based on the click share within the transmission system page as of January 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
4 | 57.1% |
|
Japan
|
1 | 14.3% |
|
Sweden
|
1 | 14.3% |
|
Italy
|
1 | 14.3% |
40 products found
40 products
Ernest Co., Ltd.
150+ people viewing
Last viewed: 11 hours ago
Standard Response
The drive shaft, which is a representative part of the drive system, is the ``keystone of power transmission'' that transmits the power of the car'...
Masu Co., Ltd.
550+ people viewing
Last viewed: 16 hours ago
Compared to other companies inverter products, it is more economical with less failure and less power consumption. Standard products can be changed...
10 models listed
MIKI PULLEY CO., LTD.
310+ people viewing
Last viewed: 6 hours ago
This is a series that combines a highly efficient and compact hollow-shaft worm reducer as the central module with a motor and a belt-type continuo...
4 models listed
MIKI PULLEY CO., LTD.
240+ people viewing
Last viewed: 2 hours ago
This is a series that combines a highly efficient and compact solid-shaft worm reducer as the central module with a motor and a belt-type continuou...
2 models listed
MIKI PULLEY CO., LTD.
980+ people viewing
Last viewed: 24 minutes ago
When the belt pitch diameter of one speed change pulley is changed, the belt pitch diameter of the other speed change pulley follows suit, thereby ...
10 models listed
MIKI PULLEY CO., LTD.
430+ people viewing
Last viewed: 14 hours ago
The belt-type continuously variable transmission, which continuously changes the rotation of the machine without stopping it, is a transmission bor...
9 models listed
MIKI PULLEY CO., LTD.
270+ people viewing
Last viewed: 11 hours ago
This is a one-way clutch type continuously variable transmission that can change speed instantly from zero rotation to maximum rotation. To change ...
2 models listed
Castech Shoji Co., Ltd.
80+ people viewing
Last viewed: 12 hours ago
■Product features ・1×1 ・W/LED ・Shield ・10/100/1,000Base ・5GPoE+ ・Lightning protection, static electricity prevention
Castech Shoji Co., Ltd.
80+ people viewing
Last viewed: 1 day ago
■Product features ・1×1 ・W/LED ・shield ・Gold plating ・from G/F to 50U”
