Tolerance sleeves
Connecting element in a robot arm
The company Dr. Tretter will be exhibiting tolerance sleeves in Hall 6 at Motek.
The slotted sheet metal sleeves with beads are embossed like wave crests. Manufactured from stainless spring steel, the standard material, they can withstand temperatures of up to 250 °C. Special versions are available for temperatures up to 450 °C and in aggressive chemical environments.
Tolerance sleeves sit in the gap between the shaft and the hub's locating bore. The shaft crests act like small compression springs and 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. The advantage of tolerance sleeves over adhesive and press-fit connections is that they can be replaced.
Motek: Hall 6, Stand 6104









