The multifinger caliper tool string to be used for casing inspection was centralized using the combination of a strong, optimally placed, spring loaded roller and stiff arm centralizers.
用于检查套管尺寸的多触点井径测量工具管串，采用结实的、安放位置经过优化的、弹簧加载的滚子及刚性臂扶正器进行居中。
It's made from a chair arm, Razor Scooter and Roller Blade and misc wood.
这是从手臂一把椅子，剃刀滑板车和压路机叶片和其它木材。
The utility model relates to a support arm for processing the inner ring of a cylindrical roller bearing, which belongs to the technical field of the bearing technological equipment.
本实用新型属于轴承工艺装备技术领域，涉及一种用于圆柱滚子轴承内圈加工的支撑臂。
In 2003, an American amusement park operator was killed when his hair and arm got caught on a roller coaster car, pulling him up as high as 12 metres before he fell, back-first, onto a fence.
2003年，一名美国游乐场的操作员因头发和手臂被夹到过山车座上而死于非命。当时过山车一直将他拉到12米的高空，他掉下来时又正好背朝下落在了栅栏上。
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;
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；
The drafting roller weighting by spring pendulum arm reliable and easy to operate.
牵伸装置采用螺旋弹簧加压的摇架，压力稳定可靠，操作方便。
The tail has a double-arm co-axial gravity tensioning device, which can adjust the tail roller synchronously.
尾部采用齿轮条重力张紧装置；同步调节尾部滚筒行程。
The invention discloses a mechanical eccentering arm with eight arms including a motor, a clutch, a roller threaded spindle, drive parts and an eccentering arm;
本发明公开了一种八臂机械推靠器，包括：电动机、离合器、滚柱丝杠、传动部件、推靠臂；
An upper fender apron, a fixing and connecting arm, a rear baffle and a roller device are also installed on the rack.
机架上还装有上挡泥板、固定连接臂、后挡板和滚轮装置。
A combined hydraulic apparatus for bending pipes consists of more than 20 general components, such as hydraulic bending unit, rocker arm, cramp, position fixture, roller and pedestal, etc.
组合式液压弯管夹具由液压弯管器、摇臂、压紧器、定位器、滚轮和支座等二十多种通用部件组成。
A combined hydraulic apparatus for bending pipes consists of more than 20 general components, such as hydraulic bending unit, rocker arm, cramp, position fixture, roller and pedestal, etc.
组合式液压弯管夹具由液压弯管器、摇臂、压紧器、定位器、滚轮和支座等二十多种通用部件组成。
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