Bearing	Mass	Dimensions					Basic Load Ratings		Limiting
Type		d	F	D	B	r	Cr	Cor	Speed
							Dynamic	Static
	g					min.	kN	kN	rpm
NA 4900	23	10	14	22	13	0.3	8.6	9.2	20000
NA 4901	26	12	16	24	13	0.3	9.6	10.9	17000
NA 4902	34	15	20	28	13	0.3	10.8	13.9	14000
NA 4903	37	17	22	30	13	0.3	11.6	15.4	12000
NA 4904	75.2	20	25	37	17	0.3	20.9	25.1	11000
NA 49/22	80	22	28	39	17	0.3	23.1	29.1	9500
NA 4905	88	25	30	42	17	0.3	23.5	30.7	9500
NA 49/28	97.7	28	32	45	17	0.3	24.8	33.2	8500
NA 4906	101	30	35	47	17	0.3	25.5	35.4	8000
NA 49/32	158	32	40	52	20	0.6	31.6	46.8	7000
NA 4907	170	35	42	55	20	0.6	32.5	51	7000
NA 4908	230	40	48	62	22	0.6	43.4	66.1	6000
NA 4909	271	45	52	68	22	0.6	45.8	72.9	5500
NA 4910	274	50	58	72	22	0.6	48	80	5000
NA 4911	393	55	63	80	25	1	63.5	110.1	4700
NA 4912	426	60	68	85	25	1	66.4	119.6	4300
NA 4913	456	65	72	90	25	1	67.6	124.6	4100
NA 4914	728	70	80	100	30	1	91.8	169.9	3800
NA 4915	775	75	85	105	30	1	95.8	183.3	3600
NA 4916	878	80	90	110	30	1	97.3	190.4	3400
NA 4917	1250	85	100	120	35	1.1	119	255.2	3100
NA 4918	1312	90	105	125	35	1.1	120.6	263.7	3000
NA 4919	1371	95	110	130	35	1.1	124.7	279.7	2800
NA 4920	1900	100	115	140	40	1.1	151.4	313.9	2900
NA 4922	2070	110	125	150	40	1.1	152.8	326.1	2600
NA 4924	2860	120	135	165	45	1.1	208	425.3	2300
NA 4926	3014	130	150	180	50	1.5	233	508.9	2000
NA 4928	2860	140	160	190	50	1.5	241.3	543.9	1700
Note:
1.These load, speed and mass is reference of choice only.
2.With grease lubrication, 60% of these limiting speed will apply.