Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
W 61804	20 mm	32 mm	7 mm	3.12 N	2.08 N	48000 rpm	30000 rpm
W 61704-2RS1	20 mm	27 mm	4 mm	0.585 N	0.39 N	-	14000 rpm
61904	20 mm	37 mm	9 mm	6.37 N	3.65 N	43000 rpm	26000 rpm
62304-2RS1	20 mm	52 mm	21 mm	15.9 N	7.8 N	-	9500 rpm
6204-ZNR	20 mm	47 mm	14 mm	13.5 N	6.55 N	32000 rpm	20000 rpm
W 6304-2RS1	20 mm	52 mm	15 mm	13.8 N	7.8 N	-	9500 rpm
WBB1-8714-2ZS	20 mm	25 mm	4 mm	0.572 N	0.365 N	53000 rpm	26000 rpm
61904-2RZ	20 mm	37 mm	9 mm	6.37 N	3.65 N	43000 rpm	20000 rpm
W 6204-2RS1/VP311	20 mm	47 mm	14 mm	10.8 N	6.55 N	-	10000 rpm
W 6304-2Z	20 mm	52 mm	15 mm	13.8 N	7.8 N	34000 rpm	17000 rpm
6304-2Z	20 mm	52 mm	15 mm	16.8 N	7.8 N	30000 rpm	15000 rpm
6404	20 mm	72 mm	19 mm	30.7 N	15 N	24000 rpm	15000 rpm
WBB1-8714	20 mm	25 mm	4 mm	0.572 N	0.365 N	53000 rpm	34000 rpm
4204 ATN9	20 mm	47 mm	18 mm	17.8 N	12.5 N	24000 rpm	13000 rpm
W 6004	20 mm	42 mm	12 mm	8.06 N	5 N	38000 rpm	24000 rpm
6304 N	20 mm	52 mm	15 mm	16.8 N	7.8 N	30000 rpm	19000 rpm
W 6004-2RS1	20 mm	42 mm	12 mm	8.06 N	5 N	-	11000 rpm
6204-2ZNR	20 mm	47 mm	14 mm	13.5 N	6.55 N	32000 rpm	17000 rpm
W 6304-2RZ	20 mm	52 mm	15 mm	13.8 N	7.8 N	34000 rpm	17000 rpm
6004	20 mm	42 mm	12 mm	9.95 N	5 N	38000 rpm	24000 rpm