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Angular Contact Ball Bearings 7221 ACD/HCP4A SKF Specifications

Bearing number:4T-LM29749/LM29711
Size (mm):38.1x65.088x19.812
Bore Diameter (mm):38,1
Outer Diameter (mm):65,088
Width (mm):19,812
d:38,1 mm
D:65,088 mm
T:19,812 mm
B:18,288 mm
C:15,748 mm
d1:52 mm
a:15.51 mm
e:0.33
Y2:1.8
Y0:0.99
Mass:0.25 kg
Dynamic load, C:43.5 kN
Rating life coefficient, A2:1.4
Static load, C0:57 kN
Fatigue limit load, Cu:7 kN
Nlim (oil):7,400 rpm
Nlim (grease):5,500 rpm
Min operating temperature, Tmin:-40 °C
Max operating temperature, Tmax:120 °C
Characteristic cage frequency, FTF:0.44 Hz
Characteristic rolling element frequency, BSF:8.22 Hz
Characteristic outer ring frequency, BPF0:9.27 Hz
Characteristic inner ring frequency, BPFI:11.73 Hz
ra max:2.3 mm
r1a max:1.3 mm

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