Bearing QJ 248 N2MA

Bearing QJ 248 N2MA images Bearing QJ 248 N2MA images
From: Angular Contact Ball Bearings
Angular Contact Ball Bearings Bearing QJ 248 N2MA Related parameters
Name Value
Bearing number QJ 248 N2MA
Size (mm) 240x440x72
Brand MBY
Bore Diameter (mm) 240
Outer Diameter (mm) 440
Width (mm) 72
Bearing dimensions and specification
Name Value
d 240 mm
D 440 mm
B 72 mm
d1 - 315 mm
D1 - 365 mm
a 238 mm
h 12.5 mm
b 15 mm
r0 2.5 mm
r1,2 min. - 4 mm
da min. - 258 mm
Da max. - 422 mm
ra max. - 3 mm
Basic dynamic load rating C - 650 kN
Basic static load rating C0 - 1200 kN
Fatigue load limit Pu - 27.5 kN
Reference speed 1500 r/min
Limiting speed 2400 r/min
Calculation factor ka - 1
Calculation factor e - 0.95
Calculation factor X - 0.6
Calculation factor Y0 - 0.58
Calculation factor Y1 - 0.66
Calculation factor Y2 - 1.07
Mass bearing 53.2 kg

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