基本尺寸			型号
			Model
d[mm]	D[mm]	B[mm]
30	72	20.75	30306-XL
30	72	20.75	30306-A
30	72	20.75	31306-A
30	68	29	T2EE030
30	62	25	33206-XL
30	62	25	33206
30	62	21.25	32206-XL
30	62	21.25	32206-B-XL
30	62	21.25	32206-B
30	62	21.25	32206-A
30	62	17.25	30206-XL
30	62	17.25	30206-A
30	60	17	T4CB030
30	55	20	33006-XL
30	55	20	33006
30	55	19	JK0S030
30	55	17	32006-X-XL
30	55	17	32006-X
30	47	12	32906
28.575	72.626	24.608	K41125-41286
28.575	59.131	15.875	KLM67043-LM67010
28.575	57.15	19.845	K1988-1922
28.575	57.15	19.845	K1985-1922
28	68	19.75	303/28
28	65	27	T2ED028
28	58	24	332/28
28	58	20.25	322/28-B
28	55	15	T4CB028
28	52	16	320/28-X
28	45	12	329/28