Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Grease lubrication	Oil lubrication
WMLF8012-2ZX	8 mm	12 mm	3.5 mm	0.37 N	0.19 N	47000 rpm	55000 rpm
F637-2Z	7 mm	26 mm	9 mm	4.55 N	1.95 N	29000 rpm	32000 rpm
WF638/7-2Z	7 mm	14 mm	5 mm	1.15 N	0.51 N	45000 rpm	54000 rpm
WMLF7013-2ZX	7 mm	13 mm	4 mm	0.7 N	0.29 N	47000 rpm	55000 rpm
WMLF7011-2ZX	7 mm	11 mm	3 mm	0.43 N	0.23 N	49000 rpm	59000 rpm
F636-2Z	6 mm	22 mm	7 mm	3.3 N	1.35 N	31000 rpm	37000 rpm
WF638/6-2Z	6 mm	13 mm	5 mm	1.1 N	0.44 N	48000 rpm	57000 rpm
WMLF6012-2ZX	6 mm	12 mm	4 mm	0.71 N	0.29 N	49000 rpm	59000 rpm
WMLF6010-2ZX	6 mm	10 mm	3 mm	0.36 N	0.16 N	53000 rpm	63000 rpm
WF638/5-2Z	5 mm	11 mm	5 mm	0.97 N	0.36 N	53000 rpm	63000 rpm
WMLF5010-2Z	5 mm	10 mm	4 mm	0.43 N	0.17 N	55000 rpm	65000 rpm
WMLF5009-2ZX	5 mm	9 mm	3 mm	0.32 N	0.13 N	50000 rpm	67000 rpm
WMLF5008-2ZX	5 mm	8 mm	2.5 mm	0.23 N	0.09 N	59000 rpm	70000 rpm
WMLF4010-2ZX	4 mm	10 mm	4 mm	0.65 N	0.23 N	56000 rpm	67000 rpm
WF638/4-2Z	4 mm	9 mm	4 mm	0.64 N	0.23 N	59000 rpm	70000 rpm