outline dimension (mm)

d	4.762
D	7.938
B	2.779
B1	3.175
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	R156
Dust cover type	R156 ZZS

installation size (mm)

da（min）	5.6
db(max)	5.5
Da（max）	7.1
db(max)	7.3
γa（max）	0.1

Weight (g) (reference)

open type	0.39
Dust cover type	0.42