| 摘要 |
A support assembly 62 for an output shaft 20 of a jigsaw is described. The support assembly 62 includes a support housing 64, a lower bearing 102, and a blade support roller 110 that guides the jigsaw blade 18. A support arm 108 supports the blade support roller 110 and is able to pivot to a small extent relative to the lower bearing 102. This pivoting minimizes the torque applied to the output shaft by reaction forces from the workpiece acting on the blade.
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