Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
D/W R188-2RZ	6.35 mm	12.7 mm	4.762 mm	0.618 N	0.224 N	110000 rpm	53000 rpm
D/W R4-2RS1	6.35 mm	15.875 mm	4.978 mm	0.852 N	0.315 N	-	28000 rpm
D/W R4A-2Z	6.35 mm	19.05 mm	7.142 mm	1.53 N	0.585 N	80000 rpm	40000 rpm
D/W R168-2Z	6.35 mm	9.525 mm	3.175 mm	0.212 N	0.088 N	120000 rpm	60000 rpm
D/W RW4 R-2Z	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	95000 rpm	48000 rpm
D/W R168 R	6.35 mm	9.525 mm	3.175 mm	0.212 N	0.088 N	120000 rpm	75000 rpm
D/W RW4 R-2RZ	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	95000 rpm	48000 rpm
D/W RW188-2Z	6.35 mm	12.7 mm	5.558 mm	0.618 N	0.224 N	110000 rpm	53000 rpm
D/W R188-2RS1	6.35 mm	12.7 mm	4.762 mm	0.618 N	0.224 N	-	30000 rpm
D/W RW4 R	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	95000 rpm	60000 rpm
D/W R4 R-2RS1	6.35 mm	15.875 mm	4.978 mm	0.852 N	0.315 N	-	28000 rpm
D/W RW4-2RZ	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	95000 rpm	48000 rpm
EE 2 TN9	6.35 mm	19.05 mm	5.556 mm	2.81 N	1.08 N	70000 rpm	50000 rpm
D/W R4A	6.35 mm	19.05 mm	5.558 mm	1.53 N	0.585 N	80000 rpm	50000 rpm
W 626 R-2RZ	6 mm	19 mm	6 mm	1.53 N	0.585 N	85000 rpm	43000 rpm
W 606 R-2RS1	6 mm	17 mm	6 mm	1.95 N	0.83 N	-	26000 rpm
WBB1-8706 R-2RS1	6 mm	12 mm	4 mm	0.403 N	0.146 N	-	32000 rpm
W 627/6-2Z	6 mm	10 mm	3 mm	0.286 N	0.112 N	120000 rpm	60000 rpm
W 627/6 R-2Z	6 mm	10 mm	3 mm	0.286 N	0.112 N	120000 rpm	60000 rpm
W 619/6-2Z	6 mm	15 mm	5 mm	0.761 N	0.265 N	100000 rpm	50000 rpm