Ball transfer units are rolling elements with a freely rotatable load ball that enable omnidirectional movement, rotation, and positioning of loads (e.g., goods and workpieces) with minimal frictional resistance. They consist of a housing with a large load ball, which is supported on several support and filler balls, and are used in conveyor systems, assembly tables, packaging machines, logistics systems, sheet metal processing, and air cargo handling. In contrast to classic roller conveyors, they allow horizontal movements in any direction.
Components and machine elements from Bosch Rexroth.
Product information
FAQ
1. What are ball transfer units and what are they used for?
2. How do I choose the right ball transfer unit for my application?
The selection of the right ball transfer unit depends on several factors: the load to be moved (light or heavy), the conveying speed, the ambient conditions (e.g., temperature, dust, humidity), the desired installation position, and the type of fastening. Ball transfer units from Bosch Rexroth are designed for a temperature range of -30 to 100 °C – without compromising on load rating – and are effectively protected against contamination by oil-soaked felt seals. For optimal selection and safe, application-oriented design, Bosch Rexroth provides detailed friction coefficient diagrams as well as clear information on load ratings and service life.
3. Can ball transfer units also be operated overhead or laterally?
Yes, ball transfer units from Bosch Rexroth are designed for reliable operation in all installation positions – whether with the load ball facing upwards, overhead, sideways, or at an angle – without functional restriction or loss of load rating. The result: maximum design flexibility in the configuration of your systems.
4. How can the service life of ball transfer units be calculated and planned?
The service life of ball transfer units is determined by the load rating, the actual load, and the operating conditions. Bosch Rexroth provides a uniform, easy-to-use formula for service life calculation for all types and sizes. This allows maintenance intervals to be planned precisely, unplanned downtimes to be avoided, and productivity to be sustainably increased.
5. What are the main advantages of ball transfer units compared to other conveyor systems?
Ball transfer units offer unique flexibility compared to roller conveyors or slideways. They enable omnidirectional movement, i.e., in any direction, which greatly simplifies the rotation and positioning of goods. Their minimal frictional resistance saves energy, and their robustness and low maintenance requirements contribute to lower operating costs. They are ideal where precision, flexibility, and efficiency in material handling are required.