Wire-roller bearings are widely used in military equipment because they meet the following stringent requirements: quick and convenient installation and maintenance, compact structure, simple operation, and enhanced reliability. These bearings are commonly employed as slewing ring bearings in radar systems, where they can withstand heavy loads while occupying minimal space, fully satisfying operational needs.

Wire-rolled raceway bearings are widely used in textile machinery, particularly in circular knitting machines.

Franke is the inventor of Wire Race Bearing and a global market leader. The core design concept is "no need for rings, just steel wire tracks", which uses four independent steel wires to make the raceway, replacing the traditional heavy inner and outer rings of bearings. This structure makes the bearing extremely compact, lightweight, and cost-effective, providing significant advantages over traditional bearings in applications that require strict weight and space requirements.

🧬  Overview of Franke Wire Rail Bearing Series
Franke's product line is very diverse, mainly divided into three categories: Bearing Elements, Bearing Assemblies, and Linear Systems.

Bearing Elements
This is the core of Franke technology, where you can directly integrate prefabricated raceway components into your own equipment structure, achieving high customization. The following are the main component series:

Series Core Features Key Parameters/Features
LEL high precision, high operational performance - raceway: grinding raceway
-Installation space: 5.9mm-20.9mm
-Material: Hardened chromium silicon steel
-Diameter: 70mm -2000mm
LER Economy, Universal, High Dynamic - Roll Path: Rectangular Profile Roll Path
-Features: Economical price, easy to integrate
-Diameter: 70mm -2000mm
LEW High Rigidity, Impact Resistance - Type: Cross Roller Bearing
-Features: The rollers are arranged in a cross pattern, which can withstand the same high load in all directions
LED/LEG specific function optimization LED and LEG are both bearing component series, among which the LEG 8 model combines four raceway into one, simplifying the structure while maintaining four point contact.
Bearing assemblies
This is a complete bearing unit that can be installed and used immediately, with Franke's steel wire track bearing components integrated inside. If you don't want to design the installation structure yourself, you can directly choose these finished components.

Series Core Features Key Parameters/Features
LVA/LVB standard type, four point contact ready to use complete bearings designed for four point contact, insensitive to impact and vibration.
LVD/LVL Slewing Ring is designed specifically for slewing applications and is available in various materials such as steel (LVD) and aluminum (LVL).
LVE/LV is lightweight and high-performance, using lightweight materials such as aluminum, plastic, or 3D printing, which can reduce weight by up to 90% compared to traditional steel bearings.
Linear Systems
Franke has also applied his steel wire track technology to the field of linear motion.

Series Core Features Key Parameters/Features
FDA/FDB/FDC... The linear guide system includes multiple sub series such as FDA-K, FDB-K, FDC-K.
The core advantages are lightweight, quiet, and maintenance free. The main material is aluminum alloy, equipped with high-quality bearings, and the operation is quiet and smooth. The sealing design can achieve maintenance free operation.
💡  How to choose? Comparison of key characteristics
Accuracy priority: If the application requires extremely high operational accuracy and smoothness, the LEL series grinding raceway is the preferred choice.

Cost sensitive: If it is necessary to control costs while ensuring performance, the LER series provides an economical solution.

High rigidity requirements: For applications that require bearing heavy loads in all directions and high rigidity, the cross roller bearing LEW series is an ideal choice.

Weight sensitive: If the application has extreme weight requirements (such as aerospace, robotics), lightweight bearing components such as LVE/LVM or aluminum alloy linear guides can significantly reduce weight.

🔧  Core advantages and technological features
Ultimate Lightweight: The bearing itself can be very lightweight and can be integrated into lightweight materials such as aluminum and plastic, bringing significant system weight reduction.

Ultra high design freedom: You can freely choose the diameter (70-2000mm), installation space, and material of the bearing, which is deeply integrated with the equipment structure.

Four point contact design: Most Franke bearings use four point contact, which means that one ball can simultaneously withstand loads from radial, axial, and overturning moments.

Reliable performance: The working temperature range is usually from -30 ° C to+80 ° C, and the circumferential speed can reach 5 m/s.

Flexible product form: Provides individual bearing components (for integration) and ready to use components.

🎯  Typical application areas
Medical technology: CT scanners, surgical robots, etc.

Robotics technology: collaborative robots (Cobots), exoskeletons, etc.

Aerospace and Defense: Fields that require extreme weight reduction, such as radar systems and satellite components.

Mechanical manufacturing: textile machinery, machine tools, semiconductor equipment, etc.

If you want to know the detailed parameters or application cases of a specific series of Franke steel wire track bearings, you can always ask me again.

Linear guide bearings are also widely used in the large-scale medical equipment industry, where extremely high requirements are placed on operational smoothness, precision, low noise, and low energy consumption.

Due to their space-saving design and low cost, wire-roller bearings are also widely used in the food industry—for example, in vacuum filters, which are characterized by their compact size and cost-effectiveness.