Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Grease lubrication	Oil lubrication
NU304ETN	20 mm	52 mm	15 mm	— N	— N	— rpm	— rpm
NU304M	20 mm	52 mm	15 mm	— N	— N	— rpm	— rpm
NU304	20 mm	52 mm	15 mm	— N	— N	— rpm	— rpm
NU303M	17 mm	47 mm	14 mm	— N	— N	— rpm	— rpm
NU264+HJ264	320 mm	580 mm	92 mm	— N	— N	— rpm	— rpm
NU260M	300 mm	540 mm	85 mm	— N	— N	— rpm	— rpm
NU252M	260 mm	480 mm	80 mm	— N	— N	— rpm	— rpm
NJ248M	240 mm	440 mm	72 mm	— N	— N	— rpm	— rpm
NU248M	240 mm	440 mm	72 mm	— N	— N	— rpm	— rpm
NU240M+HJ244	220 mm	400 mm	144 mm	— N	— N	— rpm	— rpm
NU204M+HJ244	220 mm	400 mm	65 mm	— N	— N	— rpm	— rpm
NJ244M	220 mm	400 mm	65 mm	— N	— N	— rpm	— rpm
NU244M	220 mm	400 mm	65 mm	— N	— N	— rpm	— rpm
NJ240M	200 mm	360 mm	58 mm	— N	— N	— rpm	— rpm
NUP238M	190 mm	340 mm	55 mm	— N	— N	— rpm	— rpm