The inner diameter of excavator bucket shaft customized by the manufacturer is 110-120mm, with high quality and large quantity

  Excavator bucket shaft inner diameter 110-120mm

110 * 380	110*440	110*680	110*700	110*720	110*730	110*750	110*760
110*780	110*800	110*810	110*1100	120*750	120*770	120*780	120*1000

shaft parts are one of the typical parts often encountered in machines
It is mainly used to support transmission parts, transmit torque and bear load
Shaft parts are rotating parts, whose length is greater than the diameter
They are generally composed of outer cylindrical surface, conical surface, inner hole, thread and corresponding end face of concentric shaft
According to different structural shapes, shaft parts can be divided into optical axis, stepped axis, hollow axis and crankshaft

The shaft with an aspect ratio less than 5 is called a short shaft, and the shaft with an aspect ratio greater than 20 is called a slender shaft
Most shafts are between the two

The shaft is supported by bearing, and the shaft section matched with the bearing is called journal
The journal is the assembly benchmark of the shaft, and its accuracy and surface quality are generally required to be high
Its technical requirements are generally formulated according to the main functions and working conditions of the shaft, usually including the following items:
（1） In order to determine the position of the shaft, the journal whose dimensional accuracy plays a supporting role usually requires high dimensional accuracy (it5 ~ it7)
Generally, the dimensional accuracy of shaft journal for assembling transmission parts is low (IT6 ~ it9)

（2） Geometric accuracy the geometric accuracy of shaft parts mainly refers to the roundness and cylindricity of journal, outer cone, Morse taper hole, etc
generally, its tolerance should be limited to the range of dimensional tolerance
For the inner and outer circular surfaces with high accuracy requirements, the allowable deviation shall be marked on the drawing

（3） Mutual position accuracy the position accuracy requirements of shaft parts are mainly determined by the position and function of the shaft in the machine
Generally, the coaxiality requirements of the Journal of the assembled transmission parts on the supporting journal shall be ensured, otherwise the transmission accuracy of the transmission parts (gears, etc
) will be affected and noise will be generated
For ordinary precision shafts, the radial runout of the mating shaft section to the supporting journal is generally 0
01 ~ 0
03mm, and for high-precision shafts (such as main shafts), it is usually 0
001 ~ 0
005mm

（4） The surface roughness of the shaft diameter matched with the transmission parts is ra2 5～0
63μ m
The surface roughness of the supporting shaft diameter matched with the bearing is Ra0 63～0
16μ m。
Linqing Kangnai Machinery Manufacturing Co
, Ltd
, founded in 1999, is a professional manufacturer of excavator accessories integrating processing, heat treatment, R & D, sales and service
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lqknjx
com Cn company
The company specializes in producing excavator accessories, Excavator bearing, shaft sleeve and bucket shaft www
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are widely used in petroleum, metallurgy, mining engineering machinery and other industries
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