Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
W 603 X-2Z	3 mm	9 mm	4 mm	0.325 N	0.095 N	140000 rpm	70000 rpm
W 639/3 R-2RS1	3 mm	8 mm	4 mm	0.319 N	0.09 N	-	43000 rpm
W 623-2RZ	3 mm	10 mm	4 mm	0.358 N	0.11 N	140000 rpm	70000 rpm
W 638/3-2RS1	3 mm	7 mm	3 mm	0.178 N	0.057 N	-	45000 rpm
623-Z	3 mm	10 mm	4 mm	0.54 N	0.18 N	130000 rpm	80000 rpm
W 619/3 R-2Z	3 mm	8 mm	3 mm	0.225 N	0.072 N	150000 rpm	75000 rpm
W 627/3-2Z	3 mm	6 mm	2.5 mm	0.117 N	0.036 N	170000 rpm	85000 rpm
W 638/3 R-2Z	3 mm	7 mm	3 mm	0.178 N	0.057 N	160000 rpm	80000 rpm
W 619/3	3 mm	8 mm	3 mm	0.319 N	0.09 N	150000 rpm	95000 rpm
W 60/2.5 R	2.5 mm	8 mm	2.8 mm	0.312 N	0.088 N	160000 rpm	95000 rpm
W 630/2.5-2Z	2.5 mm	8 mm	4 mm	0.312 N	0.088 N	160000 rpm	80000 rpm
W 630/2.5 R-2Z	2.5 mm	8 mm	4 mm	0.312 N	0.088 N	160000 rpm	80000 rpm
WBB1-8702 R	2.5 mm	8 mm	2.5 mm	0.319 N	0.09 N	150000 rpm	95000 rpm
W 639/2.5 R-2ZS	2.5 mm	7 mm	3.5 mm	0.221 N	0.067 N	160000 rpm	80000 rpm
W 619/2.5 R	2.5 mm	7 mm	2.5 mm	0.221 N	0.067 N	160000 rpm	100000 rpm
W 60/2.5-2Z	2.5 mm	8 mm	2.8 mm	0.178 N	0.057 N	160000 rpm	80000 rpm
W 638/2.5-2Z	2.5 mm	6 mm	2.6 mm	0.117 N	0.036 N	170000 rpm	85000 rpm
W 619/2.5	2.5 mm	7 mm	2.5 mm	0.221 N	0.067 N	160000 rpm	100000 rpm
W 639/2.5-2ZS	2.5 mm	7 mm	3.5 mm	0.221 N	0.067 N	160000 rpm	80000 rpm
W 618/2.5	2.5 mm	6 mm	1.8 mm	0.117 N	0.036 N	170000 rpm	110000 rpm