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型號	主要尺寸(mm)
型號	d in	d mm	D in	D mm	B in
SR10-2RS	?5/8	15.875	1-3/8	34.925	0.3437
SR12-2RS	3/4	19.050	1-5/8	41.275	0.4374
SR14-2RS	7/8	22.225	1-7/8	47.625	0.5000
SR16-2RS	1	25.400	2	50.800	0.5000
SR18-2RS	1-1/8	28.575	2-1/8	53.975	0.5000
SR20-2RS	1-1/4	31.750	2-1/4	57.150	0.5000
SR22-2RS	1-3/8	34.925	2-1/2	63.500	0.5626
SR24-2RS	1-1/2	38.100	2-5/8	66.675	0.5626
SR8-2RS	1/2	12.700	1-1/8	28.575	0.3126