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  • EMU/Subway Wheelset Roller Bearing Press Fitting Machine

EMU/Subway Wheelset Roller Bearing Press Fitting Machine

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EMU/Subway Wheelset Roller Bearing Press Fitting Machine

1. Brief introduction:

The EMU Rolling Bearing Press Fitting Machine is a specialized equipment for the bearing mounting of railway vehicle wheel sets, which can meet the bearing pressing operations of EMU and subway. Adopting computer control, it can collect, display and print the corresponding pressing process parameters as required, and the operation process data can interact with the bearing assembly line control system. It is equipped with an open protocol interface, which can connect with the digital system and realize data transmission.

As a core equipment in railway EMU and subway maintenance workshops, the EMU Rolling Bearing Press Machine adopts an advanced proportional valve closed-loop control hydraulic system, which has higher precision and stronger anti-interference ability than servo control. It supports simultaneous automatic pressing of both ends of the wheel set and independent automatic pressing of either end, meeting the diverse needs of EMU, subway and other different operation scenarios.

2. Main structure:

This EMU bearing press fitting machine consists of a bearing press machine main unit, an electrical control system, and a hydraulic system. It is installed below ground level, with its steel rails flush with the workshop floor. The surrounding area is covered with foundation plates, whose top surfaces are level with the workshop floor.

3. Technical parameters:

S/N Item Parameters
1 Wheelset track gauge 1435mm
2 Axle length
21402400 mm
3 Wheel diameter
Ф700960 mm
4 Bearing dimension
Inner Diameter φ120mmφ130mm
5 Wheelset Weight
3000 kg
6 Maximum Press-fitting Force
600 kN
7 Max. Stroke of Single Hydraulic Oil Cylinder
400 mm
8 Pressure Display Resolution
0.1 kN
9 Pressure Display Error
1%
10

Displacement Detection Equivalent

0.1 mm
11 Bearing Pressing Speed 
0~6mm/s(adjustable)
12 Working Rhythm
≤5 min each wheelset
13 Max. Pressure of Hydraulic System 
16 MPa
14 Installed Total Power
17.2 kw
15 Main Unit Dimension(L×W×H)
5000×1100×2050 mm
16 Main Unit Weight
5.6 t
17 Power Supply
AC380V±15%,50Hz

4. Structure:

5. Video:

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