| 摘要 |
The invention relates to a crank bearing for crank-driven vehicles or training apparatuses having cranks rotatable independently of one another, wherein a double bearing block (1) comprising an opening (11) and an outer shaft (3) having a central opening (31) are provided, wherein the outer shaft (3) is mounted in the opening (11) of the double bearing block (1) by means of a first bearing (4), and an inner shaft (2) is provided, which is mounted in the opening (31) of the outer shaft (3) by means of a second bearing (5), wherein the inner shaft (2), the outer shaft (3) and the opening (11) of the double bearing block (1) are arranged coaxially and have a common axis of rotation (23). |
