The flange on this DFU2505 assembly has several mounting holes, while the shaft end has been machined with more than one diameter. Below the working thread, there is a turned section, an external thread and a milled area near the end. These details are part of the machine connection and need to follow the customer's drawing.
The DFU2505 Ball Screw listed on our website uses a 25 mm nominal shaft diameter and a 5 mm lead. Its nut has two connected sections with a single mounting flange at the front. The two sections work against opposite sides of the screw groove to control axial clearance. The screw thread is produced by rolling, rather than grinding.
This type of double-nut arrangement is used in machine axes where unwanted movement during direction changes needs to be controlled. When a table moves forward and then reverses, clearance inside the nut can affect how quickly the movement is transferred.
The double-nut construction helps address this issue, although the final result also depends on the support bearings, coupling and installation.
Czechia is a suitable market for this type of component. Automotive production has a strong position there, with a large network of parts suppliers and engineering companies. Machine tools, assembly equipment and automated production lines are also important parts of the country's manufacturing base.
For equipment builders and maintenance workshops, replacing a Ball Screw is not always a matter of choosing the same diameter. The double-nut body needs enough room inside its housing, and the flange holes must match the mounting plate. The bearing seats, shaft shoulders and threaded ends also have to fit the existing drive arrangement.
When preparing a custom order, we check the overall length together with the usable travel, nut position and both shaft ends. Customers can provide drawings or an existing sample for reference. We accept OEM/ODM orders and can machine the shaft ends to suit the required installation.
After machining and inspection, the exposed threaded sections and finished ends are protected before the assembly is placed in a wooden crate. This order will be transported to Czechia by sea.
