Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
6310 NR	50 mm	110 mm	27 mm	65 N	38 N	13000 rpm	8500 rpm
61810	50 mm	65 mm	7 mm	6.76 N	6.8 N	20000 rpm	13000 rpm
W 61810-2RS1	50 mm	65 mm	7 mm	5.07 N	5.5 N	-	6000 rpm
310 NR	50 mm	110 mm	27 mm	64.4 N	52 N	11000 rpm	7000 rpm
310-2Z	50 mm	110 mm	27 mm	64.4 N	52 N	11000 rpm	5600 rpm
310-ZNR	50 mm	110 mm	27 mm	64.4 N	52 N	11000 rpm	7000 rpm
W 6210-2RZ	50 mm	90 mm	20 mm	30.2 N	23.2 N	17000 rpm	8500 rpm
W 61910	50 mm	72 mm	12 mm	12.5 N	11.6 N	19000 rpm	12000 rpm
309-Z	45 mm	100 mm	25 mm	55 N	44 N	13000 rpm	7500 rpm
309-2ZNR	45 mm	100 mm	25 mm	55 N	44 N	13000 rpm	6000 rpm
6209-RS1	45 mm	85 mm	19 mm	35.1 N	21.6 N	-	5000 rpm
6209-Z	45 mm	85 mm	19 mm	35.1 N	21.6 N	17000 rpm	11000 rpm
61909-2RZ	45 mm	68 mm	12 mm	14 N	10.8 N	20000 rpm	10000 rpm
6209-2ZNR	45 mm	85 mm	19 mm	35.1 N	21.6 N	17000 rpm	8500 rpm
6209-2RS1	45 mm	85 mm	19 mm	35.1 N	21.6 N	-	5000 rpm
6309 NR	45 mm	100 mm	25 mm	55.3 N	31.5 N	15000 rpm	9500 rpm
209-2Z	45 mm	85 mm	19 mm	35.2 N	30 N	14000 rpm	6800 rpm
309-2Z	45 mm	100 mm	25 mm	55 N	44 N	13000 rpm	6000 rpm
W 6209	45 mm	85 mm	19 mm	28.1 N	20.4 N	18000 rpm	11000 rpm
6209 N	45 mm	85 mm	19 mm	35.1 N	21.6 N	17000 rpm	11000 rpm