TIMKEN Bearing NP76507 Bearings For Oil Production & Drilling(Mud Pump Bearing)

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TIMKEN Bearing NP76507 Bearings For Oil Production & Drilling(Mud Pump Bearing) image

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TIMKEN Bearing NP76507 Bearings For Oil Production & Drilling(Mud Pump Bearing) Description of the code

Bearing number:4T-748S/742
Size (mm):76.2x150.089x44.45
Bore Diameter (mm):76,2
Outer Diameter (mm):150,089
Width (mm):44,45
d:76,2 mm
D:150,089 mm
T:44,45 mm
B:46,672 mm
C:36,512 mm
ra1 max.:3,3 mm
a:12 mm
Da:134 mm
db:87 mm
ra max.:3,5 mm
da:93 mm
Db:142 mm
Weight:3,66 Kg
Basic dynamic load rating (C):261 kN
Basic static load rating (C0):360 kN
(Grease) Lubrication Speed:2 400 r/min
(Oil) Lubrication Speed:3 200 r/min
Calculation factor (e):0,33
Calculation factor (Y0):1,01
d1:114.5 mm
e:0.33
Y2:1.84
Y0:1.01
Mass:3.66 kg
Dynamic load, C:261 kN
Rating life coefficient, A2:1.4
Static load, C0:360 kN
Fatigue limit load, Cu:42 kN
Nlim (oil):3,200 rpm
Nlim (grease):2,400 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:6.55 Hz
Characteristic outer ring frequency, BPF0:7.69 Hz
Characteristic inner ring frequency, BPFI:10.31 Hz
ra max:3.5 mm
r1a max:3.3 mm

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