Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
NA4904R	20mm mm	37mm mm	17mm mm	-	-	-	-
NA4905R	25mm mm	42mm mm	17mm mm	-	-	-	-
NA4906R	30mm mm	47mm mm	17mm mm	-	-	-	-
NA4907R	35mm mm	55mm mm	20mm mm	-	-	-	-
NA4908R	40mm mm	62mm mm	22mm mm	-	-	-	-
NA4909R	45mm mm	68mm mm	22mm mm	-	-	-	-
NA4910R	50mm mm	72mm mm	22mm mm	-	-	-	-
NA4911R	55mm mm	80mm mm	25mm mm	-	-	-	-
NA4912R	60mm mm	85mm mm	25mm mm	-	-	-	-
NA4913R	65mm mm	90mm mm	25mm mm	-	-	-	-
NA4914R	70mm mm	100mm mm	30mm mm	-	-	-	-
NA4915R	75mm mm	105mm mm	30mm mm	-	-	-	-
NA4916R	80mm mm	110mm mm	30mm mm	-	-	-	-
NA4917R	85mm mm	120mm mm	35mm mm	-	-	-	-
NA4918R	90mm mm	125mm mm	35mm mm	-	-	-	-
NA4919R	95mm mm	130mm mm	35mm mm	-	-	-	-
K25×31×17	25mm mm	31mm mm	17mm mm	-	-	-	-
K25×29×17	25mm mm	29mm mm	17mm mm	-	-	-	-
K25×32×16	25mm mm	32mm mm	16mm mm	-	-	-	-
K25×30×13	25mm mm	30mm mm	13mm mm	-	-	-	-