size,mm

d	288.925
D	406.400
T	77.788

specified load,N

Dynamic load (1) C 1	1170000
Coefficient (5) e	0.34
Coefficient (5) Y	1.77
Dynamic load (2) C 90	302000
Dynamic load (2) C a90	175000
Coefficient (5) K	1.73
Static load C 0	2520000

bearing designation

inner ring	M255449
housing washer	M255410

Bearings size, mm

B	77.788
C	60.325
a (3)	-4.1

Axial dimension, mm

Maximum shoulder chamfer radius R (4)	6.4
Shaft shoulder diameter D a	310.0
Diameter of the shoulder d b	316.0

Bearings seat size, mm

Maximum shoulder fillet radius r (4)	3.3
Shoulder diameter D a	388.0
Shoulder diameter D b	379.0

retainer

A a	5.80
A b	3.90

coefficient

G 1	2300
G 2	287
G g	0.1722

weight kg

weight kg	29.40