key dimension (mm)

FW	305
D	350
B,C	69
γ(min)	2
d	280

Basic rated load (N)

Cr	510000
Cor	1390000

Limit speed min ^-1

oiling	1300

Bearing code without inner ring

RNA48	RNA4856
RNA49	—
RNA59	—

Bearing code has an inner ring

NA	NA4856

Weight (kg) (Ref.)

No inner circle	9.5
There is an inner circle	15.5