Double LieDiao roller bearings

Double LieDiao roller bearing ( Provided by SKF) a) ,e) 、) Asymmetric roller b) Symmetrical shape play a c) Symmetric sand shape d) Symmetric axial movement in the middle of the drum roller can lead guard a component to make roller contact with center fixed guard: figure 1. 51 and figure 1 b. 51 c bearing adopts symmetrical roller (shown in Drum an hourglass) , in addition to the high speed condition, generally do not produce the component; Figure 1. 51 d shown in symmetrical cylindrical roller of double row roller bearings, usually by the middle of the can move along the axial lead guard, this roll out the inner ring road of the blade to use longer roller, to improve the bearing capacity of bearing. In this type of bearings, roller to the raceway and cage guide. If the design is reasonable, the roller skew roller - Maintains inter-atomic forces can be reduced to a minimum. Self-aligning roller bearing roller and raceway of alignment is very high, and the curve of female line, so it is much bigger than the friction roller bearing. This is because the roller and raceway contact caused by severe sliding. Therefore, spherical roller bearing does not apply to high-speed operation environment. This type of bearing is more suitable for carry heavy load such as rolled steel, paper making, power transmission and ship, etc. Double row bearings can withstand the axial and radial bi-directional load, but can't afford to torque. Single-row radial spherical roller bearing contact Angle of 0 °. Under the thrust load, the contact Angle is not significantly increased, so the small axial load will cause a lot of roller rolling load. So, when the axial load is relatively larger than radial load, this type of bearing is not able to withstand the combination of axial and radial load. An annular surface of raceway ( As shown in figure 1. 52) The special single bearing can bear radial load and torque, but carry axial load capacity is still very poor.