Part Number	d - Bore	D - Outer Diameter	B - Width	Cr - Dynamic Radial Rating	Cor - Static Radial Rating	Reference speed	Limiting speed
D/W RW4	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	95000 rpm	60000 rpm
D/W R4 R-2Z	6.35 mm	15.875 mm	4.978 mm	0.852 N	0.315 N	95000 rpm	48000 rpm
D/W R188 R	6.35 mm	12.7 mm	3.175 mm	0.618 N	0.224 N	110000 rpm	67000 rpm
D/W R4-2Z	6.35 mm	15.875 mm	4.978 mm	0.852 N	0.315 N	95000 rpm	48000 rpm
D/W R188-2Z	6.35 mm	12.7 mm	4.762 mm	0.618 N	0.224 N	110000 rpm	53000 rpm
D/W R4	6.35 mm	15.875 mm	4.978 mm	0.852 N	0.315 N	95000 rpm	60000 rpm
D/W RW4-2Z	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	95000 rpm	48000 rpm
D/W RW188 R	6.35 mm	12.7 mm	3.967 mm	0.618 N	0.224 N	110000 rpm	67000 rpm
D/W R4 R	6.35 mm	15.875 mm	4.978 mm	0.852 N	0.315 N	95000 rpm	60000 rpm
D/W RW188	6.35 mm	12.7 mm	3.967 mm	0.618 N	0.224 N	110000 rpm	67000 rpm
D/W RW168-2Z	6.35 mm	9.525 mm	3.967 mm	0.212 N	0.088 N	120000 rpm	60000 rpm
D/W R168 R-2ZS	6.35 mm	9.525 mm	3.175 mm	0.212 N	0.088 N	120000 rpm	60000 rpm
D/W RW4-2RS1	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	-	28000 rpm
D/W RW168	6.35 mm	9.525 mm	3.967 mm	0.212 N	0.088 N	120000 rpm	75000 rpm
D/W RW4 R-2RS1	6.35 mm	15.875 mm	5.77 mm	0.852 N	0.315 N	-	28000 rpm
D/W RW168 R-2ZS	6.35 mm	9.525 mm	3.967 mm	0.212 N	0.088 N	120000 rpm	60000 rpm
D/W R4A-2RS1	6.35 mm	19.05 mm	7.142 mm	1.53 N	0.585 N	-	24000 rpm
D/W RW168 R-2Z	6.35 mm	9.525 mm	3.967 mm	0.212 N	0.088 N	120000 rpm	60000 rpm
D/W RW188 R-2Z	6.35 mm	12.7 mm	5.558 mm	0.618 N	0.224 N	110000 rpm	53000 rpm
D/W R168 R-2Z	6.35 mm	9.525 mm	3.175 mm	0.212 N	0.088 N	120000 rpm	60000 rpm