Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
624	4 mm	13 mm	5 mm	0.936 N	0.29 N	110000 rpm	67000 rpm
604	4 mm	12 mm	4 mm	0.806 N	0.28 N	120000 rpm	75000 rpm
W 619/4 R-2RS1	4 mm	11 mm	4 mm	0.54 N	0.176 N	-	36000 rpm
W 634-2Z	4 mm	16 mm	5 mm	0.761 N	0.265 N	100000 rpm	50000 rpm
W 627/4 R-2ZS	4 mm	7 mm	2.5 mm	0.143 N	0.053 N	150000 rpm	75000 rpm
W 619/4 R	4 mm	11 mm	4 mm	0.54 N	0.176 N	130000 rpm	80000 rpm
W 638/4 XR-2RS1	4 mm	10 mm	4 mm	0.553 N	0.245 N	-	36000 rpm
W 624 R-2RZ	4 mm	13 mm	5 mm	0.741 N	0.25 N	110000 rpm	56000 rpm
W 638/4-2RS1	4 mm	9 mm	4 mm	0.364 N	0.114 N	-	40000 rpm
W 617/4	4 mm	7 mm	2 mm	0.178 N	0.057 N	150000 rpm	95000 rpm
W 618/4 R	4 mm	9 mm	2.5 mm	0.364 N	0.114 N	140000 rpm	85000 rpm
W 638/4 R-2RS1	4 mm	9 mm	4 mm	0.364 N	0.114 N	-	40000 rpm
W 638/4-2RZ	4 mm	9 mm	4 mm	0.364 N	0.114 N	140000 rpm	70000 rpm
W 604	4 mm	12 mm	4 mm	0.54 N	0.176 N	130000 rpm	80000 rpm
W 634-2RS1	4 mm	16 mm	5 mm	0.761 N	0.265 N	-	30000 rpm
W 619/4-2Z	4 mm	11 mm	4 mm	0.54 N	0.176 N	130000 rpm	63000 rpm
W 634	4 mm	16 mm	5 mm	0.761 N	0.265 N	100000 rpm	63000 rpm
W 624-2RS1	4 mm	13 mm	5 mm	0.741 N	0.25 N	-	32000 rpm
W 604-2RZ	4 mm	12 mm	4 mm	0.54 N	0.176 N	130000 rpm	63000 rpm
W 624	4 mm	13 mm	5 mm	0.741 N	0.25 N	110000 rpm	70000 rpm