Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Grease lubrication	Oil lubrication
6307R	35 mm	80 mm	21 mm	40 N	21.7 N	8700 rpm	10000 rpm
6207R	35 mm	72 mm	17 mm	31 N	17.5 N	9300 rpm	11000 rpm
6306R	30 mm	72 mm	19 mm	33.4 N	17.7 N	9800 rpm	12000 rpm
6206R	30 mm	62 mm	16 mm	23.4 N	12.8 N	11000 rpm	13000 rpm
6305R	25 mm	62 mm	17 mm	26.2 N	13.4 N	11000 rpm	14000 rpm
6205R	25 mm	52 mm	15 mm	17.6 N	9.3 N	13000 rpm	16000 rpm
6304R	20 mm	52 mm	15 mm	18.1 N	8.95 N	14000 rpm	16000 rpm
6204R	20 mm	47 mm	14 mm	15.6 N	7.6 N	15000 rpm	18000 rpm
6004R	20 mm	42 mm	12 mm	11.5 N	5.85 N	1800 rpm	21000 rpm
6303R	17 mm	47 mm	14 mm	15.6 N	7.6 N	15000 rpm	18000 rpm
RW1810-2Z	7.938 mm	12.7 mm	4.762 mm	540 N	276 N	40000 rpm	48000 rpm
RW188-2Z	6.35 mm	12.7 mm	5.558 mm	1080 N	440 N	40000 rpm	50000 rpm
RW168-2Z	6.35 mm	9.525 mm	3.967 mm	375 N	173 N	48000 rpm	56000 rpm
RW166-2Z	4.762 mm	9.525 mm	3.967 mm	710 N	270 N	50000 rpm	60000 rpm
RW156-2Z	4.762 mm	7.938 mm	3.967 mm	360 N	149 N	53000 rpm	63000 rpm