size,mm

d	59.977
D	100.000
T	55.560
B	44.450

specified load,N

Dynamic load (1) C 1	171000
Coefficient (5) e	0.43
Coefficient (5) Y1	1.59
Coefficient (5) Y 2	2.36
Dynamic load (2) C 90	25500
Dynamic load (2) C a90	18500
Dynamic load (2) C 90 (2)	44300
Coefficient (5) K	1.37

bearing designation

inner ring	28980
housing washer	28921D
Separation ring (4)	X2S-28980

Axial dimension, mm

Maximum shoulder chamfer radius R (3)	3.5
Diameter of the shoulder d b	73.0

Bearings seat size, mm

Maximum shoulder fillet radius r (3)	0.8
Shoulder diameter D a	96.0

melt

K a
K b

coefficient

G 1	60.1
G 2	24.5
G g	0.1032

weight kg

weight kg	1.66