size,mm

d	79.985
D	139.992
T	36.512

specified load,N

Dynamic load (1) C 1	191000
Coefficient (5) e	0.40
Coefficient (5) Y	1.49
Dynamic load (2) C 90	49600
Dynamic load (2) C a90	34300
Coefficient (5) K	1.45
Static load C 0	291000

bearing designation

inner ring	578X
housing washer	572

Bearings size, mm

B	36.098
C	28.575
a (3)	-5.3

Axial dimension, mm

Maximum shoulder chamfer radius R (4)	8.0
Shaft shoulder diameter D a	89.0
Diameter of the shoulder d b	104.0

Bearings seat size, mm

Maximum shoulder fillet radius r (4)	3.3
Shoulder diameter D a	133.0
Shoulder diameter D b	125.0

retainer

A a	3.40
A b	1.90

coefficient

G 1	126
G 2	32
G g	0.1295

weight kg

weight kg	2.17