Clutch and method for the production thereof

Coupling (1) for rail vehicle drives, comprised of at least

• a first coupling half (4) on a drive side and a second coupling half (5) on an output side,
• wherein at least the second coupling half (5), starting from a drive shaft or an output shaft (2, 3) and connected to it by form fit, force locking, and/or material bonding, includes at least two hollow cylinders (6, 8) which are arranged above one another and joined together by form fit, force locking, and/or material bonding, which are situated in a bore of the second coupling half (5), which is arranged substantially parallel to the axis of rotation of the drive shaft or output shaft (2, 3) in the second coupling half (5),
• wherein a first hollow cylinder (6) and the second coupling half (5) include electrically conductive material at least in the region of the bore and a second hollow cylinder (8) includes electrically insulating material, and
• wherein at least the first hollow cylinder (6) has at least partially a knurling (7) at least on its outer lateral surface on a side facing away from the drive shaft or output shaft (2, 3) and at least the inner lateral surface of the bore has at least partially a knurling (9) in the second coupling half (5), and
• wherein the second hollow cylinder (8) has a knurling (7, 9) partly or entirely on the inner and outer lateral surface, and wherein the second hollow cylinder (8) has a completely interlocking contact over the entire circumference between the outer lateral surface of the first hollow cylinder (6) and the inner lateral surface of the bore in the second coupling half (5).