| 主权项 |
1. A saber saw comprising:
a motor; a housing accommodating the motor; a gear cover arranged inside the housing; a guide sleeve arranged at an inner side of the gear cover; a plunger held to be reciprocatable inside the guide sleeve and to which a blade is mounted at a leading end thereof, and a movement converting part provided between the motor and the plunger and is configured to convert rotation movement of the motor into reciprocating movement of the plunger, wherein a first bearing metal is provided at a front portion of the plunger and a second bearing metal is provided at a rear portion of the plunger and the second bearing metal is mounted and fixed to an outer peripheral surface of the plunger, wherein the second bearing metal and the plunger are two separate structures, wherein the plunger is configured to slide relative to the guide sleeve via the second bearing metal, and wherein the second bearing metal is made of iron-based sintered materials having lubricant impregnated therein. |
