Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
N305	25mm mm	62mm mm	17mm mm	-	-	-	-
N306	30mm mm	72mm mm	19mm mm	-	-	-	-
N307	35mm mm	80mm mm	21mm mm	-	-	-	-
N308	40mm mm	90mm mm	23mm mm	-	-	-	-
N309	45mm mm	100mm mm	25mm mm	-	-	-	-
N310	50mm mm	110mm mm	27mm mm	-	-	-	-
N311	55mm mm	120mm mm	29mm mm	-	-	-	-
N312	60mm mm	130mm mm	31mm mm	-	-	-	-
N313	65mm mm	140mm mm	33mm mm	-	-	-	-
N314	70mm mm	150mm mm	35mm mm	-	-	-	-
N315	75mm mm	160mm mm	37mm mm	-	-	-	-
N316	80mm mm	170mm mm	39mm mm	-	-	-	-
N317	85mm mm	180mm mm	41mm mm	-	-	-	-
NU2224	120mm mm	215mm mm	58mm mm	-	-	-	-
NU2224E	120mm mm	215mm mm	58mm mm	-	-	-	-
NU2226	130mm mm	230mm mm	64mm mm	-	-	-	-
NU2226E	130mm mm	230mm mm	64mm mm	-	-	-	-
NU2228	140mm mm	250mm mm	68mm mm	-	-	-	-
NU2228E	140mm mm	250mm mm	68mm mm	-	-	-	-
NU2230	150mm mm	270mm mm	73mm mm	-	-	-	-