Bearing No.			Inner d mm	Outer D mm	Width W mm
Open	Shielded	Sealed			Open	Shielded/ Sealed
S683	ZZ	2RS	3	7	2	3
S684	ZZ	2RS	4	9	2.5	4
S685	ZZ	2RS	5	11	3	5
S686	ZZ	2RS	6	13	3.5	5
S687	ZZ	2RS	7	14	3.5	5
S688	ZZ	2RS	8	16	4	5
S689	ZZ	2RS	9	17	4	5
S6800	ZZ	2RS	10	19	5	5
S6801	ZZ	2RS	12	21	5	5
S6802	ZZ	2RS	15	24	5	5