| 摘要 |
The invention relates to a divisible preform, in particular wheel, ring, roller, sphere or any other stereometrically shaped body which consists of two halves (1), the partial plane (3) which forms the halves (1) extending radially in the circumferential direction. Each half (1) has a hole (5), serving as insertion opening, and a shoulder (2) which is of corresponding design hereto, their arrangement on the two halves (1) being identical. The shoulders (2) and holes (5) are constructed according to the invention as dove-tail guide (4; 5). In the mounted state the shoulders (2) engage in a positively locking fashion into the associated holes (5) and are locked in the axial direction by the dove-tail guide (4; 5). In the radial direction, the two halves (1) are held together by locking elements (6; 7) which are arranged between the faces of the partial planes (3) and are of corresponding design. A second blocking feature is provided in the form of axle bearing using spheres. <IMAGE>
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