outline dimension (mm)

d	3.967
D	7.938
D1	9.119
B	2.779
B1	3.175
C1	0.58
C2	0.91
γ（min）?	0.1

specified load (N)

Cr	360
Cor	149

Rated load load {kgf}

Cr	37
Cor	15

Rated speed min ^-1

Fat lubrication open type Z·ZZ	53000
Oil lubrication open type Z	63000

bearing symbol

open type	FR155
Dust cover type	FR155 ZZS

installation size (mm)

da（min）	4.8
db(max)	5.5
γa（max）	0.1

Weight (g) (reference)

open type	0.59
Dust cover type	0.67