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Double row full complement cylindrical roller bearings

Double row full complement cylindrical roller bearings accommodate the maximum number of rollers because there is no cage.

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Double row full complement cylindrical roller bearings accommodate the maximum number of rollers because there is no cage. In addition to being able to bear large radial and axial loads, it can also withstand overturning moments, so it is often used as a fixed bearing.

Structure type of double row full complement cylindrical roller bearings
FV double row full complement cylindrical roller bearing is a non-separable bearing, and its outer ring has an annular groove and a lubrication hole for easy lubrication. NNF-type bearings have additional lubrication holes in the inner ring.
There are four types according to different designs:
Type NNCL: The outer ring has no ribs, and the inner ring has three integral ribs; a fixed ring is installed between the roller groups of the outer ring to fix the bearings together. During operation, the fixed ring should not bear axial load; axial displacement of the shaft relative to the housing is permitted in both directions.
Type NNCF: The inner ring has three integral ribs, and the outer ring has one rib; the other side of the integral rib of the outer ring is equipped with a fixed ring to fix the bearings together. During operation, the fixed ring should not bear Axial load; axial displacement of the shaft relative to the housing is permitted in both directions.
Type NNC: An integral outer ring with an integral rib on one side and a rib ring on the other. It has the same inner ring as NNCL and NNCF type bearings; it has a double half outer ring (1. It is fixed with the bearing through a fixed ring and cannot bear axial load; 2. It contains two identical outer ring components, each with An integral rib); used for axial positioning in both directions.
Type NNF: This is a sealed bearing. There is a double half inner ring (1. fixed with the bearing through a fixed ring, 2. with three integral ribs); there is an integral center rib on the outer ring used for axial positioning in two directions. It has an outer ring 1mm narrower than the inner ring (the rotational speeds of the inner and the outer ring can be different); the outer ring has two stop grooves (which can simplify installation and save axial space); contact seals are on both sides.
In many applications, NNF-type sealed bearings do not require relubrication and can be considered maintenance-free. However, additional lubrication may be required in humid or polluted environments or when operating at medium to high speeds. The bearings can be relubricated through the lubrication holes on the inner and outer rings.
The structural diagram is as follows:


NNCL design	NNCF design	NNC design	NNF (sealed design)

Naming rules for double row full complement cylindrical roller bearings

double row full complement cylindrical roller bearings

Application of double row full complement cylindrical roller bearings

Double-row full complement cylindrical roller bearings are mainly used in rolling mills, gear transmission systems, flying shear equipment, coiler equipment, etc.

Technical parameters of double row full complement cylindrical roller bearings

Principal dimensions			Basic load ratings [kN]		Fatigue load limit [kN]	Speed ratings		Designation
[mm]			Basic load ratings [kN]		Fatigue load limit [kN]	Speed ratings		Designation
			dynamic	static		Reference speed	Limiting speed
d	D	B	C	Co	Pu	[r/min]	[r/min]
20	42	30	45.7	55	5.7		3400	NNF 5004 ADB-2LSV
20	42	30	52.3	57	6.2	8500	10000	NNCF 5004 CV
25	47	30	50.1	65.5	6.8		3000	NNF 5005 ADB-2LSV
25	47	30	59.4	71	7.65	7000	9000	NNCF 5005 CV
30	55	34	57.2	75	7.8		2600	NNF 5006 ADB-2LSV
30	55	34	73.7	88	10	6000	7500	NNCF 5006 CV
35	62	36	70.4	98	10.6		2200	NNF 5007 ADB-2LSV
35	62	36	89.7	112	12.9	5300	6700	NNCF 5007 CV
40	68	38	85.8	116	13.2		2000	NNF 5008 ADB-2LSV
40	68	38	106	140	17	4800	6000	NNCF 5008 CV
45	75	40	102	146	17		1800	NNF 5009 ADB-2LSV
45	75	40	112	156	18.3	4300	5300	NNCF 5009 CV
50	80	40	108	160	18.6		1700	NNF 5010 ADB-2LSV
50	80	40	142	196	23.6	4000	5000	NNCF 5010 CV
55	90	46	128	193	22.8		1500	NNF 5011 ADB-2LSV
55	90	46	190	280	34.5	3400	4300	NNCF 5011 CV
60	85	25	78.1	137	14.3	3600	4500	NNC 4912 CV
60	85	25	78.1	137	14.3	3600	4500	NNCF 4912 CV
60	85	25	78.1	137	14.3	3600	4500	NNCL 4912 CV
60	95	46	134	208	25		1400	NNF 5012 ADB-2LSV
60	95	46	198	300	36.5	3400	4000	NNCF 5012 CV
65	100	46	138	224	26.5		1300	NNF 5013 ADB-2LSV
65	100	46	209	325	40	3000	3800	NNCF 5013 CV
70	100	30	114	193	22.4	3000	3800	NNC 4914 CV
70	100	30	114	193	22.4	3000	3800	NNCF 4914 CV
70	100	30	114	193	22.4	3000	3800	NNCL 4914 CV
70	110	54	187	285	34.5		1200	NNF 5014 ADB-2LSV
70	110	54	238	345	45	2800	3600	NNCF 5014 CV
75	115	54	224	310	40		1100	NNF 5015 ADB-2LSV
75	115	54	251	380	49	2600	3200	NNCF 5015 CV
80	110	30	121	216	25	2600	3400	NNC 4916 CV
80	110	30	121	216	25	2600	3400	NNCF 4916 CV
80	110	30	121	216	25	2600	3400	NNCL 4916 CV
80	125	60	251	415	53		1000	NNF 5016 B-2LS
80	125	60	308	455	58.5	2400	3000	NNCF 5016 CV
85	130	60	270	430	55		1000	NNF 5017 B-2LS
85	130	60	314	475	60	2400	3000	NNCF 5017 CV
90	125	35	161	300	35.5	2400	3000	NNC 4918 CV
90	125	35	161	300	35.5	2400	3000	NNCF 4918 CV
90	125	35	161	300	35.5	2400	3000	NNCL 4918 CV
90	140	67	319	550	69.5		900	NNF 5018 B-2LS
90	140	67	369	560	69.5	2200	2800	NNCF 5018 CV
95	145	67	330	570	71		900	NNF 5019 B-2LS
100	140	40	209	400	46.5	2000	2600	NNC 4920 CV
100	140	40	209	400	46.5	2000	2600	NNCF 4920 CV
100	140	40	209	400	46.5	2000	2600	NNCL 4920 CV
100	150	67	336	570	68		850	NNF 5020 B-2LS
100	150	67	391	620	75	2000	2600	NNCF 5020 CV
110	150	40	220	430	49	1900	2400	NNC 4922 CV
110	150	40	220	430	49	1900	2400	NNCF 4922 CV
110	150	40	220	430	49	1900	2400	NNCL 4922 CV
110	170	80	413	695	81.5		750	NNF 5022 B-2LS
110	170	80	512	800	95	1800	2200	NNCF 5022 CV
120	165	45	242	480	53	1700	2200	NNC 4924 CV
120	165	45	242	480	53	1700	2200	NNCF 4924 CV
120	165	45	242	480	53	1700	2200	NNCL 4924 CV
120	180	80	429	750	86.5		700	NNF 5024 B-2LS
120	180	80	539	880	104	1700	2000	NNCF 5024 CV
130	180	50	297	530	60	1600	2000	NNC 4926 CV
130	180	50	297	530	60	1600	2000	NNCF 4926 CV
130	180	50	297	530	60	1600	2000	NNCL 4926 CV
130	190	80	446	815	91.5		670	319426 B-2LS
130	200	95	616	1040	120		630	NNF 5026 B-2LS
130	200	95	765	1250	143	1500	1900	NNCF 5026 CV
140	190	50	308	570	63	1500	1900	NNC 4928 CV
140	190	50	308	570	63	1500	1900	NNCF 4928 CV
140	190	50	308	570	63	1500	1900	NNCL 4928 CV
140	200	80	468	865	96.5		630	319428 DA-2LS
140	210	95	644	1120	127		600	NNF 5028 B-2LS
140	210	95	809	1370	153	1400	1800	NNCF 5028 CV
150	190	40	255	585	60	1500	1800	NNC 4830 CV
150	190	40	255	585	60	1500	1800	NNCF 4830 CV
150	190	40	255	585	60	1500	1800	NNCL 4830 CV
150	210	60	429	830	91.5	1400	1700	NNC 4930 CV
150	210	60	429	830	91.5	1400	1700	NNCF 4930 CV
150	210	60	429	830	91.5	1400	1700	NNCL 4930 CV
150	210	80	484	915	100		600	319430 B-2LS
150	225	100	748	1290	143		560	NNF 5030 B-2LS
150	225	100	842	1430	160	1300	1700	NNCF 5030 CV
160	200	40	260	610	62	1400	1700	NNC 4832 CV
160	200	40	260	610	62	1400	1700	NNCF 4832 CV
160	200	40	260	610	62	1400	1700	NNCL 4832 CV
160	220	60	446	915	96.5	1300	1600	NNC 4932 CV
160	220	60	446	915	96.5	1300	1600	NNCF 4932 CV
160	220	60	446	915	96.5	1300	1600	NNCL 4932 CV
160	220	80	501	1000	106		530	319432 DA-2LS
160	240	109	781	1400	153		500	NNF 5032 B-2LS
160	240	109	952	1600	180	1200	1500	NNCF 5032 CV
170	215	45	286	655	65.5	1300	1600	NNC 4834 CV
170	215	45	286	655	65.5	1300	1600	NNCF 4834 CV
170	215	45	286	655	65.5	1300	1600	NNCL 4834 CV
170	230	60	457	950	100	1200	1500	NNC 4934 CV
170	230	60	457	950	100	1200	1500	NNCF 4934 CV
170	230	60	457	950	100	1200	1500	NNCL 4934 CV
170	230	80	512	1060	110		530	319434 B-2LS
170	260	122	1010	1800	193		480	NNF 5034 B-2LS
170	260	122	1230	2120	236	1100	1400	NNCF 5034 CV
180	225	45	297	695	69.5	1200	1500	NNC 4836 CV
180	225	45	297	695	69.5	1200	1500	NNCF 4836 CV
180	225	45	297	695	69.5	1200	1500	NNCL 4836 CV
180	240	80	528	1100	114		480	319436 DA-2LS
180	250	69	594	1220	127	1100	1400	NNC 4936 CV
180	250	69	594	1220	127	1100	1400	NNCF 4936 CV
180	250	69	594	1220	127	1100	1400	NNCL 4936 CV
180	280	136	1170	2120	228		450	NNF 5036 B-2LS
180	280	136	1420	2500	270	1100	1300	NNCF 5036 CV
190	240	50	358	750	76.5	1100	1400	NNC 4838 CV
190	240	50	358	750	76.5	1100	1400	NNCF 4838 CV
190	240	50	358	750	76.5	1100	1400	NNCL 4838 CV
190	260	69	605	1290	132	1100	1400	NNC 4938 CV
190	260	69	605	1290	132	1100	1400	NNCF 4938 CV
190	260	69	605	1290	132	1100	1400	NNCL 4938 CV
190	260	80	550	1180	120		450	319438 DA-2LS
190	290	136	1190	2200	236		430	NNF 5038 B-2LS
190	290	136	1470	2600	280	1000	1300	NNCF 5038 CV
200	250	50	369	800	80	1100	1400	NNC 4840 CV
200	250	50	369	800	80	1100	1400	NNCF 4840 CV
200	250	50	369	800	80	1100	1400	NNCL 4840 CV
200	270	80	627	1370	137	950	1300	319440 B-2LS
200	280	80	704	1500	153	1000	1300	NNC 4940 CV
200	280	80	704	1500	153	1000	1300	NNCF 4940 CV
200	280	80	704	1500	153	1000	1300	NNCL 4940 CV
200	310	150	1450	2900	300		400	NNF 5040 B-2LS
200	310	150	1680	3050	320	950	1200	NNCF 5040 CV
220	270	50	352	865	85	1000	1200	NNC 4844 CV
220	270	50	380	865	85	1000	1200	NNCF 4844 CV
220	270	50	380	865	85	1000	1200	NNCL 4844 CV
220	300	80	737	1600	160	950	1200	NNC 4944 CV
220	300	80	737	1600	160	950	1200	NNCF 4944 CV
220	300	80	737	1600	160	950	1200	NNCL 4944 CV
220	300	95	880	1860	190		380	319444 B-2LS
220	340	160	1610	3100	315		360	NNF 5044 B-2LS
220	340	160	2010	3600	375	850	1100	NNCF 5044 CV
240	300	60	539	1290	125	900	1100	NNC 4848 CV
240	300	60	539	1290	125	900	1100	NNCF 4848 CV
240	300	60	539	1290	125	900	1100	NNCL 4848 CV
240	320	80	781	1760	173	850	1100	NNC 4948 CV
240	320	80	781	1760	173	850	1100	NNCF 4948 CV
240	320	80	781	1760	173	850	1100	NNCL 4948 CV
240	320	95	952	2040	200		360	319448 B-2LS
240	360	160	1680	3350	335		340	NNF 5048 B-2LS
240	360	160	2120	3900	400	800	1000	NNCF 5048 CV
260	320	60	561	1400	132	800	1000	NNC 4852 CV
260	320	60	561	1400	132	800	1000	NNCF 4852 CV
260	320	60	561	1400	132	800	1000	NNCL 4852 CV
260	340	95	990	2160	212		340	319452 B-2LS
260	360	100	1170	2550	245	750	950	NNCF 4952 CV
260	360	100	1170	2550	245	750	950	NNCL 4952 CV
260	400	190	2420	4650	455		300	NNF 5052 B-2LS
260	400	190	2860	5100	500	700	900	NNCF 5052 CV
280	350	69	737	1860	173	750	950	NNC 4856 CV
280	350	69	737	1860	173	750	950	NNCF 4856 CV
280	350	69	737	1860	173	750	950	NNCL 4856 CV
280	380	100	1210	2700	255	700	900	NNCF 4956 CV
280	380	100	1210	2700	255	700	900	NNCL 4956 CV
280	420	190	2550	5000	490		280	NNF 5056 B-2LS
280	420	190	2920	5300	520	670	850	NNCF 5056 CV
300	380	80	858	2120	196	700	850	NNC 4860 CV
300	380	80	858	2120	196	700	850	NNCF 4860 CV
300	380	80	858	2120	196	700	850	NNCL 4860 CV
300	420	118	1680	3750	355	670	800	NNC 4960 CV
300	420	118	1680	3750	355	670	800	NNCF 4960 CV
300	420	118	1680	3750	355	670	800	NNCL 4960 CV
300	460	218	3520	6550	600	600	750	NNCF 5060 CV
320	400	80	897	2280	208	630	800	NNC 4864 CV
320	400	80	897	2280	208	630	800	NNCF 4864 CV
320	400	80	897	2280	208	630	800	NNCL 4864 CV
320	440	118	1760	4050	375	600	750	NNCF 4964 CV
320	440	118	1760	4050	375	600	750	NNCL 4964 CV
320	480	218	3690	6950	620	560	700	NNCF 5064 CV
340	420	80	913	2400	216	600	750	NNC 4868 CV
340	420	80	913	2400	216	600	750	NNCF 4868 CV
340	420	80	913	2400	216	600	750	NNCL 4868 CV
340	460	118	1790	4250	390	560	700	NNCF 4968 CV
340	460	118	1790	4250	390	560	700	NNCL 4968 CV
340	520	243	4400	8300	710	530	670	NNCF 5068 CV
360	440	80	935	2550	224	560	700	NNCF 4872 CV
360	440	80	935	2550	224	560	700	NNCL 4872 CV
360	480	118	1830	4500	405	530	670	NNCF 4972 CV
360	480	118	1830	4500	405	530	670	NNCL 4972 CV
360	540	243	4180	8650	735	500	630	NNCF 5072 CV
380	480	100	1400	3650	315	530	670	NNCF 4876 CV
380	480	100	1400	3650	315	530	670	NNCL 4876 CV
380	520	140	2380	5700	500	500	630	NNCF 4976 CV
380	520	140	2380	5700	500	500	630	NNCL 4976 CV
380	560	243	4680	9150	750	480	600	NNCF 5076 CV
400	500	100	1420	3750	325	500	630	NNCF 4880 CV
400	500	100	1420	3750	325	500	630	NNCL 4880 CV
400	540	140	2420	6000	520	480	600	NNCF 4980 CV
400	540	140	2420	6000	520	480	600	NNCL 4980 CV
400	600	272	5500	11000	900	450	560	NNCF 5080 CV

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