Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
W 619/4-2RS1	4 mm	11 mm	4 mm	0.54 N	0.176 N	-	36000 rpm
W 604-2RS1	4 mm	12 mm	4 mm	0.54 N	0.176 N	-	36000 rpm
W 637/4 X-2Z	4 mm	8 mm	3 mm	0.225 N	0.072 N	150000 rpm	75000 rpm
634-2Z	4 mm	16 mm	5 mm	1.11 N	0.38 N	95000 rpm	48000 rpm
W 604 R-2RS1	4 mm	12 mm	4 mm	0.54 N	0.176 N	-	36000 rpm
604-2Z	4 mm	12 mm	4 mm	0.806 N	0.28 N	120000 rpm	60000 rpm
618/4	4 mm	9 mm	2.5 mm	0.423 N	0.116 N	140000 rpm	85000 rpm
W 604 R	4 mm	12 mm	4 mm	0.54 N	0.176 N	130000 rpm	80000 rpm
624-2Z	4 mm	13 mm	5 mm	0.936 N	0.29 N	110000 rpm	53000 rpm
W 638/4-2Z	4 mm	9 mm	4 mm	0.364 N	0.114 N	140000 rpm	70000 rpm
628/4-2Z	4 mm	9 mm	3.5 mm	0.54 N	0.18 N	140000 rpm	70000 rpm
634-Z	4 mm	16 mm	5 mm	1.11 N	0.38 N	95000 rpm	60000 rpm
W 619/4	4 mm	11 mm	4 mm	0.54 N	0.176 N	130000 rpm	80000 rpm
W 637/4 XR-2Z	4 mm	8 mm	3 mm	0.225 N	0.072 N	150000 rpm	75000 rpm
W 637/4 XR	4 mm	10 mm	3 mm	0.553 N	0.245 N	130000 rpm	80000 rpm
D/W RW155-2ZS	3.967 mm	7.938 mm	3.967 mm	0.203 N	0.075 N	140000 rpm	70000 rpm
D/W R155	3.967 mm	7.938 mm	2.779 mm	0.203 N	0.075 N	140000 rpm	90000 rpm
D/W R155-2ZS	3.967 mm	7.938 mm	3.175 mm	0.203 N	0.075 N	140000 rpm	70000 rpm
D/W RW155 R-2ZS	3.967 mm	7.938 mm	3.967 mm	0.203 N	0.075 N	140000 rpm	70000 rpm
D/W R155 R	3.967 mm	7.938 mm	2.779 mm	0.203 N	0.075 N	140000 rpm	90000 rpm