车架阳极氧化，小轮轴采用双轴承，带减震橡胶，较座，8“前轮，24”后轮，双支撑，附安全带。
Aluminum oxidation frame, soft cushion, 8 "front caster and 24" rear wheel, double brace, whit safety belt.
带座外球面轴承是将滚动轴承与轴承座结合在一起的一种轴承单元。
Set-contained bearing is rolling bearing and housing will be together in a bearing unit.
其第一摆动辊装在第一摆动臂上，第一摆动臂通过带座轴承安装在机座的前上部分；
A first swing roller is arranged on a first swing arm; the first swing arm is arranged at the front upper part of a stand through a bearing with a seat;
安装带座外球面球轴承时，将轴承套在轴上，先将轴承座牢固地固定在支承面上，然后将轴承紧固在轴上即可。
The desiring installation method of installing insert ball bearing unit is: first install the housing at support base firmly, then tighten the bearing to the shaft.
安装带座外球面球轴承时，将轴承套在轴上，先将轴承座牢固地固定在支承面上，然后将轴承紧固在轴上即可。
The desiring installation method of installing insert ball bearing unit is: first install the housing at support base firmly, then tighten the bearing to the shaft.
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