Product details from catalogue Inquiry

Drawings:

7256-B-MP-UA FAG


d Bore diameter 280 mm
D Outside diameter 500 mm
B Width 80 mm
Cr Basic dynamic load rating, radial 500.000 N
C0r Basic static load rating, radial 880.000 N
Cur Fatigue load limit, radial 23.300 N
nG Limiting speed 1.940 1/min
nϑr Reference speed 1.350 1/min
≈m Weight 69,1 kg
da min Minimum diameter of shaft shoulder 300 mm
Da max Maximum diameter of housing shoulder 480 mm
Db max Maximum diameter of housing shoulder 489 mm
ra max Maximum fillet radius of shaft 4 mm
ra1 max Maximum fillet radius of housing 2 mm
rmin Minimum chamfer dimension 5 mm
r1 min Minimum chamfer dimension 2 mm
D1 Shoulder diameter on outer ring wide side face 413 mm
d1 Shoulder diameter on inner ring wide side face 368 mm
a Distance between the apexes of the pressure cones 204 mm
α Contact angle 40 °
Tmin Operating temperature min. -30 °C
Tmax Operating temperature max. 200 °C
Amin Axial clearance per set min. 130 µm
Tol(+) Tolerance for axial clearance or preload per set 16 µm
Design variant Design variant B B
Sealing not sealed Without
Cage solid brass cage, ball guided MP
Tolerance class Normal (PN) PN
Bearing with matched conditions for fitting in pairs bearing set with small axial internal clearance UA
Lubricant Bearing not greased. Without
Dimensional / heat stabilization Rings dimensional stabilized up to 200° S1