size,mm

d	39.980
D	80.035
T	46.040
B	34.925

specified load,N

Dynamic load (1) C 1	102000
Coefficient (5) e	0.40
Coefficient (5) Y1	1.68
Coefficient (5) Y 2	2.50
Dynamic load (2) C 90	15200
Dynamic load (2) C a90	10500
Dynamic load (2) C 90 (2)	26500
Coefficient (5) K	1.45

bearing designation

inner ring	28159
housing washer	28318D
Separation ring (4)	X1S-28158

Axial dimension, mm

Maximum shoulder chamfer radius R (3)	3.5
Diameter of the shoulder d b	52.0

Bearings seat size, mm

Maximum shoulder fillet radius r (3)	0.8
Shoulder diameter D a	73.0

melt

K a
K b

coefficient

G 1	20.7
G 2	12.5
G g	0.0709

weight kg

weight kg	0.94