outline dimension (mm)

d	6.35
D	12.7
D1	13.894
B	3.175
B1	4.762
C1	0.58
C2	1.14
γ（min）?	0.15

specified load (N)

Cr	1080
Cor	440

Rated load load {kgf}

Cr	110
Cor	45

Rated speed min ^-1

Fat lubrication open type Z·ZZ	40000
Oil lubrication open type Z	50000

bearing symbol

open type	FR188
Dust cover type	FR188 ZZ

installation size (mm)

da（min）	7.6
db(max)	7.4
γa（max）	0.15

Weight (g) (reference)

open type	1.64
Dust cover type	2.49