Tolerance sleeves
Versatile helpers
Dr. Tretter will be focusing on tolerance sleeves at the trade fair. In Stuttgart, the force-fit connecting elements, which can be easily released again, are installed in a robot arm.
Tolerance sleeves are slotted sheet metal sleeves with beads that are embossed like wave crests. The standard material is stainless spring steel strip, which can withstand temperatures of up to 250 degrees Celsius. The tolerance sleeve sits in the gap between the shaft and the mounting hole of the hub. The shaft crests, which are distributed around the entire circumference of the tolerance sleeve and act like many small compression springs, ensure a tight fit.
The shaft crests are elastically deformed by a certain oversize of the tolerance sleeve. This creates a frictional connection between the shaft and hub. Trapezoidal screw drives are an innovation. They consist of the trapezoidal screw spindle and a trapezoidal screw nut. High strength can be achieved by rolling the spindle. If the thread flanks also have a high surface quality, the unit achieves good running properties. as
Hall 6, Stand 6104
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