Bearing	Stainless	Boundary Dimensions(mm)				Basic load ratings (KN)		Weight
NO.		d	D	B(Open/ZZ,2RS)	rsmin	Dynamic (Cr)	Static (Cor)	(kg)
68 Series
681	S681	1	3	1	0.05	0.08	0.03	0.00007
681X	S681X	1.5	4	1.2	0.05	0.102	0.029	0.0001
682	S682	2	5	1.5/2.3	0.1	0.19	0.06	0.00013
683	S683	3	7	2?3?	0.15	0.3626	0.1176	0.00033
684	S684	4	9	2.5/4	0.15	0.6076	0.2156	0.00067
685	S685	5	11	3?5?	0.15	0.6174	0.2548	0.0011
686	S686	6	13	3.5/5	0.15	1.029	0.392	0.0019
687	S687	7	14	3.5/5	0.15	1.1172	0.441	0.0021
688	S688	8	16	4?5?	0.2	1.5288	0.6174	0.0031
689	S689	9	17	4?5?	0.2	1.6464	0.686	0.0032