基本尺寸			型号
			Model
d[mm]	D[mm]	B[mm]
25	32	38	BK2538-ZW
25	32	26	BK2526
25	32	20	BK2520
25	32	18	BK2518-RS
25	32	16	BK2516
23.812	30.162	25.4	BCE1516
22.225	30.162	25.4	BCH1416
22.225	30.162	19.05	BCH1412
22.225	28.575	25.4	BCE1416
22.225	28.575	19.05	BCE1412
22.225	28.575	12.7	BCE148
22.225	28.575	9.525	BCE146
22	28	16	BK2216
22	28	12	BK2212
20.638	28.575	19.05	BCH1312
20.638	28.575	15.875	BCH1310
20.638	26.988	19.05	BCE1312
20.638	26.988	12.7	BCE138
20	26	20	BK2020
20	26	18	BK2018-RS
20	26	16	BK2016
19.05	26.988	19.05	BCH1212
19.05	25.4	19.05	BCE1212
19.05	25.4	17.46	BCE1211-P
19.05	25.4	15.875	BCE1210
19.05	25.4	14.288	BCE129-P
19.05	25.4	12.7	BCE128
19.05	25.4	9.525	BCE126
18	24	16	BK1816
18	24	12	BK1812