Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
NJ238+HJ238	190mm mm	340mm mm	55mm mm	-	-	-	-
NJ238E	190mm mm	340mm mm	55mm mm	-	-	-	-
NJ238E+HJ238E	190mm mm	340mm mm	55mm mm	-	-	-	-
NJ240	200mm mm	360mm mm	58mm mm	-	-	-	-
NJ240+HJ240	200mm mm	360mm mm	58mm mm	-	-	-	-
NJ240E	200mm mm	360mm mm	58mm mm	-	-	-	-
NJ240E+HJ240E	200mm mm	360mm mm	58mm mm	-	-	-	-
NJ244	220mm mm	400mm mm	65mm mm	-	-	-	-
NJ248	240mm mm	440mm mm	72mm mm	-	-	-	-
NJ252	260mm mm	480mm mm	80mm mm	-	-	-	-
NJ256	280mm mm	500mm mm	80mm mm	-	-	-	-
NJ260	300mm mm	540mm mm	85mm mm	-	-	-	-
NJ264	320mm mm	580mm mm	92mm mm	-	-	-	-
NNU4972K	360mm mm	480mm mm	118mm mm	-	-	-	-
NNU4980	400mm mm	540mm mm	140mm mm	-	-	-	-
NNU4976	380mm mm	520mm mm	140mm mm	-	-	-	-
NNU4980K	400mm mm	540mm mm	140mm mm	-	-	-	-
NNU4976K	380mm mm	520mm mm	140mm mm	-	-	-	-
NNU4984	420mm mm	560mm mm	140mm mm	-	-	-	-
NNU4980	400mm mm	540mm mm	140mm mm	-	-	-	-