| 摘要 |
A spacer manufacturing method can manufacture a spacer to be mounted in a spindle stock, so precisely and simply at a low cost as need not use a bearing of a large size or a bearing of a special design so as to support an unclamping force. An inner-ring spacer (4) and an outer-ring spacer (5) have load receiving portions (4a and 5c), which confront each other in the axial direction through a clearance (d) of a predetermined size, and are halved in splitting planes (F1 and F2) normal to the axial direction and extending through the load receiving portions (4a and 5c). An inner-ring spacer splitting member (4A) having a load receiving portion (4b) and an outer-ring spacer splitting member (5A) having the load receiving portion (5c) are simultaneously worked to have equal axial widths. In addition, an inner-ring spacer splitting member (4B) not having the load receiving portion (4b) and an outer-ring spacer splitting member (5B) not having the load receiving portion (5c) are simultaneously worked to have equal axial widths, so that the axial width (b) of the latter may be longer by the clearance (d) than the axial width (a) of the former. |
