... in hydroelectric generator, vertical motors, propeller shafts for ships, jib cranes, rolling mail roll necksMain Specification: 21317CCK SKF BEARING ... of size, but also includes special designs such as bearings for vibrating screens and similar applications.2. The self-aligning ... center line is from 1 to 2.5 degrees.metallurgy, rolling mill, mine, petroleum, paper making, cement, sugar pressing, ...