Double Row Cylindrical Roller Bearing

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Description And Technical diameters

select	Inquiry	Bearing NO.		Boundary dimensions(mm)					Basic load ratings(kN)		Limiting speed(rpm)	Abutment and fillet dimensions(mm)				Weight (kg)
select	Inquiry	Cylindrical bore	Tapered bore	d	D	B/C	r 1.2min	r3.4min	Cr	Cor	Speed Ratings	da max	Da max	ra max	rb max	Refer
		NN3040	NN3040K	200	310	82	2.1	2.1	644	1140	2000	-	299	2	2	22
		NNU3040	NNU3040K	200	310	82	2.1	2.1	644	1140	2000	216	293	2	2	22.9
		NN4040	NN4040K	200	310	109	2.1	2.1	890	1730	2000	216	293	2	2	30.4
		NNU4040X2	-	200	310	115	2.1	2.1	1010	1860	2000	225	299	2	2	31.5
		NNU4140	NNU4140K30	200	340	140	3	3	1470	2550	1700	231	327	2.5	2.5	51
		NN3944	NN3944K	220	300	60	2.1	2.1	440	895	2800	236	283	2	2	11.4
		NNU4944	NNU4944K	220	300	80	2.1	2.1	512	1140	2800	242	289	2	2	16.5
		NN4944	NN4944K	220	300	80	2.1	2.1	512	1140	2800	236	283	2	2	16.6
		NNU5944X2	-	220	300	100	2.1	2.1	897	1930	2200	236.5	289	2	2	20.5
		NN3044	NN3044K	220	340	90	3	3	809	1460	2600	-	327	2.5	2.5	28.5
		NNU3044	-	220	340	90	3	3	809	1460	2600	238	320	2.5	2.5	30
		NN4044	NN4044K	220	340	118	3	3	1190	2400	2600	238	320	2.5	2.5	39.8
		NN3144	-	220	370	120	4	4	1050	1810	1500	241	346	3	3	51.9
		NNU3144	-	220	370	120	4	4	1050	1810	1500	241	346	3	3	52.3
		NNU4144	NNU4144K30	220	370	150	4	4	1650	2900	1500	254	354	3	3	65
		NNU4848	NNU4848K	240	300	60	2	2	358	930	2200	255	290	2	2	9.9
		NN4848	-	240	300	60	1.1	1.1	358	930	2200	252	287	1	1	9.77
		NN3948	NN3948K	240	320	60	2.1	2.1	460	975	2600	257	302	2	2	12.2
		NNU4948	NNU4948K	240	320	80	2.1	2.1	528	1220	2600	262	309	2	2	17.5
		NN4948	NN4948K	240	320	80	2.1	2.1	528	1220	2600	257	302	2	2	17.9
		NNU5948X2	-	240	320	100	2.1	2.1	880	1960	1400	255	293	2	2	22.5
		NN3048	NN3048K	240	360	92	3	3	842	1560	2400	-	347	2.5	2.5	32
		NNU3048	NNU3048K	240	360	92	3	3	842	1560	2400	259	340	2.5	2.5	30.8
		NN4048	NN4048K	240	360	118	3	3	1240	2600	2400	259	340	2.5	2.5	39.3
		NNU4048	-	240	360	118	3	3	1240	2600	2400	259	340	2.5	2.5	42.7
		NN3148	NN3148K	240	400	128	4	4	1170	2040	1400	262	376	3	3	64.2
		NNU4148	NNU4148K30	240	400	160	4	4	1980	3650	1400	278	384	3	3	85
		NN3952	NN3952K	260	360	75	2.1	2.1	670	1380	2400	277	342	2	2	21.4
		NNU4952	NNU4952K	260	360	100	2.1	2.1	748	1700	2400	288	349	2	2	30.5
		NN4952	NN4952K	260	360	100	2.1	2.1	748	1700	2400	277	342	2	2	28.3
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