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How to Select a Suitable Shaft for Jaw Slag Crusher?

Jan 29 2015

The size of jaw slag crusher’s bearing is determined by the following aspects: The size of eccentric shaft is calculated by the crushing force. After determine the place of the shaft neck which is between the mainframe shaft and eccentric shaft, then the bearing specification can be determined according to the shaft neck. We generally use medium wide series of bearing, whose service life is long and can meet the relevant standards. In this program, I will address the following two key issues: the crushing force and load of the shaft. Only know these two questions, can we find the correct size of jaw slag crusher.

The crushing force

There are two methods to determine the crushing force of the shaft. One is that get the theoretical calculation formula of the crushing force according to the power of the motor or crushing power; another is that get the calculation formula of the crushing force according to experimental data.

Loads on the shaft

Every round the eccentric shaft of the jaw slag crusher rotate, its movable jaw will swing forward and backward once, and raw materials are squeezed and crushed. Thus, force on the shaft is pulse cycling stress. During the process that the shaft rotates for 360 degrees, the force on the every point of the shaft changes from zero and maximum. For ease of calculation, the 360 ° can be divided into equal units of account.

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