一区二区三区av这些免费观看-国内自拍成人福利视频-国产91精品清纯白嫩-在线女同免费观看网站

Switch crane cranes special gear design
Crane special gear to consider the working characteristics of crane agencies, transmission ratio range, and further improve product performance, using less specification meet the requirements of many users, which is characterized by:
1) high carrying capacity. Gear carburizing, quenching, grinding processing, soft tooth surface and hardened gear carrying capacity than the quenching roller teeth has greatly improved.
2) small size, light weight. Compared with the soft tooth surface and hardened cranes special gear. The same carrying capacity cranes special gear can be reduced quite a 2-4 frame size.
High 3) efficiency, low noise, small vibration. Using grinding machining improves the accuracy level has been revised gear edge, the overall efficiency of each stage gear was 0.98, significantly reducing vibration and noise.
4) meet the requirements of special gear crane crane agencies; greatest common cranes special gear ratios, said the 400 to meet the slow crane requirements.
Jiangsu New Silver Leaf Transmission Ltd Recommended: mining machinery gear http://jyzdl.com/products-detail.asp?cpid=402