| 摘要 |
<p>Disclosed herein is a chain saw comprising a sprocket nose cutter bar having a main portion with two fixedly extending laterally spaced side plates having aligned apertures therein, a bearing race member located between the fixedly extending side plates and having deformable flange portions extending through the aligned apertures, the deformable flange portions being fixed to the side plates, a sprocket having a central aperture therein and located between the side plates in radially outward relation with respect to the bearing race member, and bearings located between the sprocket and the bearing race member.</p> |
