Popular articles

Probably every transmission repair specialist was keen on LEGO constructions or at least enjoyed making some minor things with their hands. Here's the game taken to a new level of creativity!

Modern auto industry is full of sophisticated drivetrain technologies which are supposed to make your driving experience even more pleasant and trouble-free. Despite a great abundance of sophisticated technical solutions, it is highly likely that very few people know a transmission solution operating like a manual CVT.

Over recent years engineers developed a lot of gear shifting solutions for different car brands, which may seem a bit unusual for oldtime drivers. In this article we will review the most peculiar gear stick technologies and provide video materials related to these technologies.

Only few people know about transmission concepts which were popular 70-90 years ago. For men of today, these gearboxes may seem very unusual and weird, but even now some gearboxes that date back to those years are quite competitive in comparison with modern transmissions.

Nowadays Extroid CVTs are commonly known as “toroidal” due to the fact that the working surface of driving and driven discs in this transmission has the form of a torus. Extroid CVT is not a V-belt transmission, but a friction drive CVT.

Schaeffler Contributes to Optimization of Transmission Development Process


Schaeffler Contributes to Optimization of Transmission Development Process

Schaeffler, in cooperation with SEW-EURODRIVE and the FVA, has recently presented a standardized interface for transmission info, allowing to eliminate repeated transmission modeling and to optimize the process of the transmission development.


A full virtual view of any transmission system is likely to happen when specialists responsible for development of different components manage to bring together their solutions. Therefore, the process of the data transfer between companies and systems is one of the most crucial preconditions for creation of digital twins. On the market, there are numerous tools for creation of transmission prototypes and their simulation, but none of them can be considered as a universal solution. The challenge is that production companies and their suppliers still have to exchange gearbox information manually, which causes spending time on repetitive operations.


The new solution named as REXS offers a modeling unit for any needed gearbox with spur gear, cone gear, and planetary gear stages and their elements. To date, REXS is implemented in the FVA Workbench (v. 5.0 and higher), in all active versions of Schaeffler’s Bearinx, and SEW-EURODRIVE’s WESILAB program. Even vendors of computer-generated simulation tools have now included the REXS interface or mean to start its introduction as part of their future products.




Example REXS Models


Thanks to the REXS interface the process of transmission data exchange become automatic. Customers can get results of model calculation from Bearinx much faster, thereby accelerating the development processes. REXS allows cutting costs for linking simulations of different transmission components. This solution can be used in the field of transmission development as a standardized data container for the creation of digital twins.


With REXS, transmission info can be transferred promptly and efficiently, which means the interface makes a significant contribution to the optimization of the development process. The REXS interface is free software, and is available at www.rexs.info.

Popular articles

Probably every transmission repair specialist was keen on LEGO constructions or at least enjoyed making some minor things with their hands. Here's the game taken to a new level of creativity!

Modern auto industry is full of sophisticated drivetrain technologies which are supposed to make your driving experience even more pleasant and trouble-free. Despite a great abundance of sophisticated technical solutions, it is highly likely that very few people know a transmission solution operating like a manual CVT.

Over recent years engineers developed a lot of gear shifting solutions for different car brands, which may seem a bit unusual for oldtime drivers. In this article we will review the most peculiar gear stick technologies and provide video materials related to these technologies.

Only few people know about transmission concepts which were popular 70-90 years ago. For men of today, these gearboxes may seem very unusual and weird, but even now some gearboxes that date back to those years are quite competitive in comparison with modern transmissions.

Nowadays Extroid CVTs are commonly known as “toroidal” due to the fact that the working surface of driving and driven discs in this transmission has the form of a torus. Extroid CVT is not a V-belt transmission, but a friction drive CVT.