精品视频亚洲一区二区,狠狠狠一区二区三区熟,尹在国产香蕉在线视频,在车里被撞了八次高黄

價(jià) 格：1000

單排四點(diǎn)接觸球式回轉(zhuǎn)支承由兩個(gè)座圈組成，鑫達(dá)結(jié)構(gòu)緊湊，回轉(zhuǎn)重量輕，支承鋼球與圓弧滾道四點(diǎn)接觸，鑫達(dá)能同時(shí)承受軸向力，回轉(zhuǎn)徑向力和傾翻力矩，支承回轉(zhuǎn)式輸送機(jī)，鑫達(dá)焊接操作機(jī)，回轉(zhuǎn)中小型起重機(jī)和挖掘機(jī)等工程機(jī)械均可選用。支承

The鑫達(dá) single-row four points contact ball Slewing Bearing is composed of 2 seat-rings.It features compact in design,and light in weight.The balls contact with the circular race at four points,via which the axial force,radial force and resultant moment may be born simultaneously.

It may be used for slewing conveyors,welding arms and positioners,light,medium duty cranes,excavators and other engineering machines.