Model-SKF Bearing

Designation	Principal dimensions			Basic load ratings		Speed ratings
Model				dynamic	static	Reference speed	Limiting speed
	d[mm]	D[mm]	B[mm]	C[kN]	C₀[kN]	[r/min]	[r/min]
NAO 40x55x17	40	55	17	21.6	46.5	9000	10000
NKI 42/20	42	57	20	29.2	61	8500	10000
NKI 42/30	42	57	30	41.8	98	8500	10000
NKIS 45	45	72	22	44.6	78	7000	8000
NA 4909	45	68	22	45.7	78	7500	8500
NA 6909	45	68	40	70.4	137	7500	8500
NKI 45/25 TN	45	62	25	42.9	91.5	8000	9000
NA 4909 RS	45	68	22	39.1	64		3800
NA 4909.2RS	45	68	23	39.1	64		3800
NKI 45/35 TN	45	62	35	58.3	137	8000	9000
NA 4910	50	72	22	47.3	85	7000	8000
NKIS 50	50	80	28	62.7	104	6300	7500
NA 6910	50	72	40	73.7	150	7000	8000
NA 4910.2RS	50	72	23	40.2	69.5		3400
NA 4910 RS	50	72	23	40.2	69.5		3400
NKI 50/35	50	68	35	52.3	122	7500	8500
NAO 50x68x20	50	68	20	27	67	7500	8500
NKI 50/25	50	68	25	40.2	88	7500	8500
NKIS 55	55	85	28	66	114	6000	6700
NA 4911	55	80	25	57.2	106	6300	7000
NA 6911	55	80	45	89.7	190	6300	7000
NKI 55/35	55	72	35	55	134	6700	7500
NKI 55/25 TN	55	72	25	46.8	110	6700	7500
NA 4912	60	85	25	60.5	114	6000	6700
NA 6912	60	85	45	93.5	204	6000	6700
NKIS 60	60	90	28	68.2	120	5600	6300
NKI 60/25	60	82	25	44	95	6000	6700
NKI 60/35	60	82	35	60.5	146	6000	6700
NA 4913	65	90	25	61.6	120	5600	6300
NA 6913	65	90	45	95.2	212	5600	6300