size,mm

d	54.987
D	135.755
T	53.975

specified load,N

Dynamic load (1) C 1	298000
Coefficient (5) e	0.32
Coefficient (5) Y	1.85
Dynamic load (2) C 90	77200
Dynamic load (2) C a90	42900
Coefficient (5) K	1.80
Static load C 0	404000

bearing designation

inner ring	6381
housing washer	6320

Bearings size, mm

B	56.007
C	44.450
a (3)	-19.3

Axial dimension, mm

Maximum shoulder chamfer radius R (4)	3.5
Shaft shoulder diameter D a	70.0
Diameter of the shoulder d b	76.0

Bearings seat size, mm

Maximum shoulder fillet radius r (4)	3.3
Shoulder diameter D a	126.0
Shoulder diameter D b	117.0

retainer

A a	4.00
A b	0.50

coefficient

G 1	124
G 2	22.4
G g	0.0827

weight kg

weight kg	4.04