key dimension (mm)

FW	430
D	520
B,C	140
γ(min)	4
d	380

Basic rated load (N)

Cr	1550000
Cor	3750000

Limit speed min ^-1

oiling	950

Bearing code without inner ring

RNA48	—
RNA49	RNA4976
RNA59	—

Bearing code has an inner ring

NA	NA4976

Weight (kg) (Ref.)

No inner circle	50.5
There is an inner circle	85.5