| 摘要 |
Embodiments of the invention provide a bearing support for the primary drive shaft extension of a motorcycle or the like so that the main bearing support is as close to the drive mechanism as possible. In one embodiment, the shaft extension device comprises a shaft extension member configured to be attached to the shaft to rotate with the shaft. The shaft extension member includes a bearing surface disposed at a distance axially spaced from the shaft. A primary spacer is configured to be connected to the motor casing. A bearing is supported by the primary spacer to be axially spaced from the shaft and to contact the bearing surface of the shaft extension member to provide bearing support for the shaft extension member.
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