ZX270 Excavator Hydraulic Pump ZX270 Main Pump - Jinan Excavator Parts Company

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ZX270 Excavator Hydraulic Pump ZX270 Main Pump image

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Hitachi hydraulic pump Product Description

Bearing number:4T-366/362A
Size (mm):50x88.9x20.638
Bore Diameter (mm):50
Outer Diameter (mm):88,9
Width (mm):20,638
d:50 mm
D:88,9 mm
T:20,638 mm
B:22,225 mm
C:16,513 mm
ra1 max.:1,3 mm
a:4 mm
Da:81 mm
db:55 mm
ra max.:2,3 mm
da:59 mm
Db:84 mm
Weight:0,529 Kg
Basic dynamic load rating (C):76,5 kN
Basic static load rating (C0):90,5 kN
(Grease) Lubrication Speed:4 100 r/min
(Oil) Lubrication Speed:5 500 r/min
Calculation factor (e):0,32
Calculation factor (Y0):1,03
d1:67 mm
e:0.32
Y2:1.88
Y0:1.03
Mass:0.53 kg
Dynamic load, C:76.5 kN
Rating life coefficient, A2:1.4
Static load, C0:90.5 kN
Fatigue limit load, Cu:11 kN
Nlim (oil):5,500 rpm
Nlim (grease):4,100 rpm
Min operating temperature, Tmin:-40 °C
Max operating temperature, Tmax:120 °C
Characteristic cage frequency, FTF:0.43 Hz
Characteristic rolling element frequency, BSF:6.5 Hz
Characteristic outer ring frequency, BPF0:7.68 Hz
Characteristic inner ring frequency, BPFI:10.32 Hz
ra max:2.3 mm
r1a max:1.3 mm

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Jinan Excavator Parts Company: Email[email protected]; AddressTianqiao, Beiyuan District, Jinan，Shandong; Phone(Working Time)86 0531-8299 9952; Fax86 0531 -82990353

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