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Mission:Provide high quality pipe fittings and slewing bearings and total solutions for global customers

Sales Hotline: 021-33854491
Technical hotline: 021-33854496
fax: 021-201906

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Application area

>
Manufacturing technology
>>High precision CNC equipment
 

Figure 3-1 production site

Figure 3-2 3.15m and 4m CNC vertical cars

 

 

Figure 3-3 SAET Corporation (Italy) numerical

control quenching machine

Figure 3-4 3.5m numerical control

side hole drill

 

 

Figure 3-5 3.5m NC vertical drill

Figure 3-6 2.5m CNC gear shaper

 

 

Figure 3-7 4m NC milling machine

Figure 3-8 2.5m and 4m NC vertical mill

Perfect process
 
High quality special materials
 
The 42CrMoHM stabilization steel is made by electric furnace smelting through vacuum degassing and strictly controlling the size of non-metallic inclusions with oxygen content and hydrogen content. The precision forging process of large ring rolling equipment ensures low cycle characteristics and hardenability of bearings. The forging is quenched and tempered to ensure the comprehensive mechanical properties of the ring forging.
 
 
The depth of the effective hardened layer
 
Advanced processing equipment, skilled workmen and strict process control ensure the depth of hardened layer of raceway and ensure that the raceway does not suffer fatigue peeling.
 
High precision raceway machining
 
The high precision CNC vertical mill is adopted for raceway machining, and one step forming technology is adopted to ensure the dimension accuracy, geometry and surface roughness of raceway. It ensures the minor pretightening of the bearing raceway and reduces the fretting wear of bearings.
 
Reliable experimental data
 
Accurate assembly test, no-load and load simulation test, comprehensive performance test, accurately verify the various technical performance indicators of pitch and yaw bearings.
 
 
Quality assurance
 
Control according to quality system ISO9001, strictly test and check.
 
Destructive testing

Fig. 3-9 tensile test (material specimen)

testing mechanical properties

Fig. 3-10 section hardness, hardened layer

depth and raceway hardening shape.


Fig. 3-11 microstructure of steel ball

examined by OLYMPUS (Japan) microscope

Nondestructive testing
 

Figure 3-12 SPECTRO (Germany) spectrometer

for detecting chemical composition of forgings.

Figure 3-13 GE company (USA)

ultrasonic testing forgings defects

 

 

Fig. 3-14 ultrasonic testing of raceway

hardened layer depth by Fran Hof Institute (Germany)

Figure 3-15 measurement of

the size of the outer ring raceway

 

 

Figure 3-16 no-load start

friction torque measurement

Simulation experiment on the

no-load of paddle bearing in Figure 3-17

 

 

Figure 3-18 bench test bench

Figure 3-19 yaw test workbench

 

Shanghai Ouji Kete Slewing Bearing Co., Ltd
Address: No. 368, Fulian 3rd Road, Baoshan District, Shanghai
Service hotline:021-33854491
Sales hotline:021-33854491
Technical hotline: 021-33854496
Fax:021-33854473
Zip code: 021-201906
Website: www.oujichina.com
E-mail: oujikfb@oujichina.com