Ball screws
From round to straight
Dr. Tretter's ball screw drives convert the rotation of a motor into linear motion with a high degree of efficiency. The economical components can be seen at the all about automation trade fair in Leipzig.
The all about automation in Leipzig on September 11 and 12 is the trade fair for industrial automation in Central Germany. Dr. Tretter will be presenting a selection from its product range at the Globana exhibition center. The manufacturer and technology partner will be focusing on its ball screw drives. These consist of a spindle, a nut with the balls and the bearing. With a high degree of efficiency, they convert the rotation of a motor into a linear movement.
In most cases, the spindle is driven and the nut is connected to the part to be moved. In some cases, the nut is also driven and the screw performs the linear movement. In general, a distinction can be made between ground and rolled spindles. In the case of ground spindles, the nuts are usually preloaded - i.e. free of play - or designed with a small amount of play of up to around 0.005 millimeters. Their high surface quality ensures particularly quiet operation.
The range includes the steel housing for DIN ball screw nuts (form B). This serves as a connecting element between the drive and the guide. This allows the user to mount the ball screw drive easily and accurately.
Dr. Tretter will also be presenting the new axial angular contact ball bearings in Leipzig. These enable users to position ball screw drives in modern machine tools quickly, efficiently and precisely. Thanks to the double-row configuration with a contact angle of 60 degrees, the BSBD series can also support high axial loads in both directions. The bearings are sealed and are supplied ready for installation with lifetime lubrication. For higher loads, Dr. Tretter also offers the bearings in a matched design. In this case, the individual bearings are matched to each other. The NSKHPS bearings, for example, are the result of continuous product optimization and offer higher load ratings and accuracy. as
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