Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
W 61811-2RS1	55 mm	72 mm	9 mm	7.15 N	8.5 N	-	5300 rpm
61811-2RZ	55 mm	72 mm	9 mm	9.04 N	8.8 N	19000 rpm	9500 rpm
W 61811	55 mm	72 mm	9 mm	7.15 N	8.5 N	19000 rpm	12000 rpm
61911	55 mm	80 mm	13 mm	16.5 N	14 N	17000 rpm	11000 rpm
16011	55 mm	90 mm	11 mm	20.3 N	14 N	16000 rpm	10000 rpm
6311-2Z	55 mm	120 mm	29 mm	74.1 N	45 N	12000 rpm	6300 rpm
6311 M	55 mm	120 mm	29 mm	74.1 N	45 N	12000 rpm	11000 rpm
6311 N	55 mm	120 mm	29 mm	74.1 N	45 N	12000 rpm	8000 rpm
6311-2ZNR	55 mm	120 mm	29 mm	74.1 N	45 N	12000 rpm	6300 rpm
311 NR	55 mm	120 mm	29 mm	79.2 N	67 N	10000 rpm	6300 rpm
6311-2RS1	55 mm	120 mm	29 mm	74.1 N	45 N	-	3800 rpm
62211-2RS1	55 mm	100 mm	25 mm	43.6 N	29 N	-	4300 rpm
6411	55 mm	140 mm	33 mm	99.5 N	62 N	11000 rpm	7000 rpm
6211-RS1	55 mm	100 mm	21 mm	46.2 N	29 N	-	4300 rpm
6011-RS1	55 mm	90 mm	18 mm	29.6 N	21.2 N	-	4500 rpm
211-Z	55 mm	100 mm	21 mm	48.4 N	44 N	12000 rpm	7000 rpm
4311 ATN9	55 mm	120 mm	43 mm	97.5 N	83 N	9000 rpm	5000 rpm
W 61811-2Z	55 mm	72 mm	9 mm	7.15 N	8.5 N	19000 rpm	9500 rpm
6011 M	55 mm	90 mm	18 mm	29.6 N	21.2 N	16000 rpm	14000 rpm
6011 N	55 mm	90 mm	18 mm	29.6 N	21.2 N	16000 rpm	10000 rpm