NNC-V NNF-V Double Row Cylindrical Roller Bearings

NNC-V and NNF-V double row cylindrical roller bearings have a full complement of cylindrical rollers, allowing for higher load-carrying capacity than NN bearings. They are suitable for heavy-duty applications with moderate to low speeds. The V-shaped groove on the outer ring improves oil distribution and reduces heat generation. NNC-V and NNF-V bearings are widely used in heavy machinery, such as mining equipment, cranes, and construction machinery.

Technial Specification

Table 1

d	D	B	rsmin	E	F	Mass	CrKN	CorKN	Limiting	Bearing Code	D1min	D1max
d	D	B	rsmin	E	F	(kg)	CrKN	CorKN	speed	Bearing Code	D1min	D1max
140	190	50	1.5	176.3	154.3	4.42	265	570	1400	NNC4928V	148	182
150	210	60	2	191.7	165.7	7.08	380	850	1300	NNC4930V	159	201
220	300	80	2.1	276.9	240.9	17.8	680	1600	800	NNC4944V	230	290
120	180	80	0.6	164	134	7.07	400	750	480	NNF5024B	126	177
130	200	950	0.6	183.8	139.8	9.52	710	1220	450	NNF5026C	136	197
140	210	95	0.6	195.5	157.5	11.2	600	1120	400	NNF5028B	146	207
150	225	100	0.6	209.2	167.2	11.5	695	1290	380	NNF5030B	156	222
160	240	109	0.6	222.6	180.6	16.9	720	1400	360	NNF5032B	166	237
170	260	122	0.6	239	191	23.2	720	1400	360	NNF5034B	166	237
180	280	136	0.6	260.2	200.2	30.2	1340	2500	300	NNF5036C	186	277
190	290	136	0.6	269.8	209.8	31.6	1370	2600	300	NNF5038C	196	287
200	310	150	0.6	287.8	223.8	40.3	1560	3050	280	NNF5040C	206	307
130	180	50	1.5	165.8	143.8	2.67	255	530	1600	NNV4926V	138	172

Advantages

NNC-V and NNF-V double row cylindrical roller bearings have several advantages:

1. High load carrying capacity: With a full complement of cylindrical rollers, NNC-V and NNF-V bearings can withstand higher radial loads than NN bearings.

2. Good lubrication and heat dissipation: The V-shaped groove on the outer ring improves oil distribution and reduces heat generation, prolonging the service life of the bearings.

3. Suitable for heavy-duty applications: NNC-V and NNF-V bearings are designed for heavy machinery and can handle moderate to low speeds.

4. Easy to install and maintain: The simple structure of NNC-V and NNF-V bearings makes them easy to install and maintain.

5. Cost-effective: Due to their full complement of rollers, NNC-V and NNF-V bearings are more cost-effective than NN bearings in certain applications.

In summary, NNC-V and NNF-V double row cylindrical roller bearings offer high load-carrying capacity, good lubrication and heat dissipation, suitability for heavy-duty applications, ease of installation and maintenance, and cost-effectiveness.