Four row cylindrical roller bearings-rolling mill bearings, Roll neck bearings, Tapered roller bearings, Spherical roller bearings-FUWEI (LUOYANG) METALLURGY BEARING TECHNOLOGY CO.,LTD.

Four row cylindrical roller bearings

Four-row cylindrical bearings are almost exclusive to metals industry and carry heavy radial loads in steel, aluminum and other metal rolling mills.

Design Attributes

Design offers very high radial load capacity. No thrust capacity.
Straight and tapered bores available.
Inner races are interchangeable with outer assemblies.

No.	Bearing design	Ring and flange design	Cage design
BC4.1 design		two outer rings each with three integral flanges one inner ring no flanges	two cages machined brass or steel double prong-type roller centred
BC4T.1 design		two outer rings each with three integral flanges one inner ring tapered bore no flanges	two cages machined brass or steel double prong-type roller centred
BC4.2 design		two outer rings each with three integral flanges intermediate ring in between one inner ring no flanges	two cages machined brass or steel double prong-type roller centred
BC4T.2 design		two outer rings each with three integral flanges intermediate ring in between one inner ring tapered bore no flanges	two cages machined brass or steel double prong-type roller centred
BC4.3 design		two outer rings each with an integral central flange intermediate ring in between two flange rings one inner ring no flanges	two cages machined brass or steel double prong-type roller centred
BC4T.3 design		two outer rings each with an integral central flange intermediate ring in between two flange rings one inner ring tapered bore no flanges	two cages machined brass or steel double prong-type roller centred
BC4.4 design		two outer rings each with two integral flanges one inner ring no flanges	two cages machined brass window-type roller centred
BC4T.4 design		one outer ring two flange rings three guide rings one inner ring tapered bore no flanges	two cages machined brass or steel double prong-type roller centred
BC4.5 design		one outer ring two flange rings three guide rings one inner ring no flanges	two cages machined brass or steel double prong-type roller centred
BC4T.5 design		two outer rings each with two integral flanges two inner rings no flanges	four cages machined steel pin-type pierced rollers
BC4.6 design		two outer rings each with an integral central flange intermediate ring in between two flange rings four inner rings no flanges	four cages machined brass or steel prong-type roller centred
BC4T.6 design		two outer rings no flanges two inner rings each with three integral flanges	four cages machined steel pin-type pierced rollers
BC4.7 design		one outer ring two flange rings three guide rings one inner ring extended on one side no flanges	two cages machined brass or steel double prong-type roller centred
BC4T.7 design		two outer rings each with three integral flanges two inner rings one ring extended on one side no flanges	two cages machined brass or steel double prong-type roller centred
BC4.8 design		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner rings one ring extended on one side no flanges	two cages machined brass or steel double prong-type roller centred
BC4T.8 design		one outer ring two flange rings three guide rings one inner ring tapered bore extended on one side with a lead-in taper no flanges	two cages machined brass or steel double prong-type roller centred
BC4.9 design		two outer rings each with three integral flanges two inner rings no flanges	four cages machined steel pin-type pierced rollers
BC4.10 design		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner rings no flanges	four cages machined steel pin-type pierced rollers
BC4.11 design		two single row and one double row outer rings two intermediate rings in between each single row ring with an integral flange double row ring with an integral central flange two inner rings no flanges	four cages machined steel pin-type pierced rollers
BC4.12 design		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner rings no flanges	four cages stamped steel window-type roller centred
BC4.13 design		two outer rings each with two integral flanges two inner rings no flanges	two cages machined brass window-type roller centred
BC4.14 design		two outer rings each with an integral central flange intermediate ring in between two flange rings four inner rings no flanges	four cages machined steel pin-type pierced rollers
BC4.15 design		two outer rings no flanges two inner rings each with three integral flanges	four cages machined steel pin-type pierced rollers
BC4.16 design		one outer ring two flange rings three guide rings one inner ring extended on one side no flanges	two cages machined brass or steel double prong-type roller centred
BC4.17 design		two outer rings each with three integral flanges two inner rings one ring extended on one side no flanges	two cages machined brass or steel double prong-type roller centred
BC4.18 design		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner rings one ring extended on one side no flanges	two cages machined brass or steel double prong-type roller centred
BC4.19 design		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner rings one ring extended on one side no flanges	four cages machined steel pin-type pierced rollers
BC4.20 design		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner rings one ring extended on one side with a concentric shoulder no flanges	four cages machined steel pin-type pierced rollers
BC4.21 design		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner rings each extended on one side one ring with a concentric shoulder one ring with a lead-in taper no flanges	four cages machined steel pin-type pierced rollers
BC4.22 design ( Seald type )		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner ringseach with an integral flange	four cages stamped steel window-type roller centred
BC4.23 design ( Seald type )		two outer rings each with an integral central flange intermediate ring in between two flange rings two inner ringseach with an integral flange	four cages stamped steel window-type roller centred

Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials.

The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life.

Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements.

Special variants

In addition to the bearings presented in this section, FV supplies cylindrical roller bearings for special application requirements. This assortment includes:

Bearings with Solid Oil
INSOCOAT bearings
Hybrid bearings
NoWear coated bearings
Super-precision bearings
Backing bearings
Indexing roller units
Cylindrical roller bearings and bearing units for railway applications ( contact FV )

Features and benefits:

High load carrying capacity
High stiffness
Accommodate axial displacement
Low friction
Long service life
Enhanced operational reliability
Separable and interchangeable

DATA TABLE OF FOUR ROW CYLINDRICAL ROLLER BEARINGS

Principal dimensions [mm]				Basic load ratings [		Fatigue load limit	Designation
				dynamic	static	[kN]
d	D	B	C	Cr	Cor	Pu	SKF code
160	230	130	130	842	1340	143	314190
160	230	168	168	1120	2200	240	315189 A
165.1	225.45	168.3	168.3	1100	2240	240	315642/VJ202
180	260	168	168	1380	2500	265	313812
200	270	170	170	1250	2700	275	314553
200	280	170	170	1470	3000	305	314385
200	280	200	200	1650	3350	345	313893
200	290	192	192	1680	3200	320	313811
220	310	192	192	1830	3650	360	313839
230	330	206	206	2010	4000	390	313824
260	370	220	220	2330	4650	465	313823
280	390	220	220	2420	5000	490	313822
280	420	250	250	3690	6550	640	NNUD 6056 ECMAS/P53
300	420	300	300	4020	8800	850	314484 D
340	450	250	250	2550	6000	550	BC4-8050
340	480	350	350	4950	11000	1020	314485 C
340	500	370	370	5230	11800	1080	BC4B 322261/HB1
350	500	380	380	5280	11400	1040	314563/VJ202
350	500	410	410	5830	13700	1200	BC4B 322777/HB1
350	520	300	300	4680	9000	800	BC4B 326909 A/HA3
350	520	300	300	4680	9000	800	BC4B 326909/HA3
355.6	482.6	269.87	269.87	2970	6400	585	BC4-8022/HA1
356.67	550	400	400	5280	15000	1290	BC4B 457939 VAA
360	500	250	250	3910	7350	670	BC2B 320075/VJ202
360	500	250	250	4400	8500	780	BC2B 322217/VJ202
380	540	400	380	6050	14000	1200	BC4B 320989/HA3
380	540	400	400	5720	13700	1180	BC4B 313511 B
380	540	400	400	6160	15000	1290	BC4B 326366/HB1
380	560	325	325	5230	10600	930	BC4B 322264/HB1
382.5	590	450	450	6930	16300	1430	319352
390	540	320	320	5280	12200	1040	BC4B 322498
400	560	300	300	4680	10200	900	BC4-8059
400	590	440	440	7920	16600	1400	315802/VJ202
420	580	320	320	4680	10800	950	313555 B/VJ202
420	580	320	320	4680	10800	950	313555 C/VJ202
420	600	440	440	7210	17600	1460	313513
431.5	571.5	300	300	4460	10200	880	BC4B 326361 B/HA1
431.5	571.5	310	310	4460	10200	880	BC4-8037/HA1VA907
440	660	340	340	7210	13700	1080	635043
450	590	300	300	3910	12000	1020	315811 E
460	650	424	424	8250	18300	1530	315196 A
460	650	460	424	7810	18300	1530	BC4B 322993 A/HA7
475	600	368	368	5500	14600	1270	BC4B 326261/HA1
475	600	392	392	5500	14600	1270	BC4-8003/HA1VA907
480	680	420	420	9130	19300	1500	319320
480	680	500	500	9900	25000	1930	316624
487.98	637	350	350	6440	15300	1220	BC2B 326196/HA1VJ202
500	650	260	260	4400	10200	850	319254/VJ202
500	670	450	450	8250	22000	1800	316083 A
500	670	480	450	8250	22000	1800	BC4B 322039/HA1
500	680	450	450	8250	22000	1800	BC4B 316515
500	720	400	400	8580	17600	1320	BC4B 322066
500	738	500	500	10800	23200	1760	BC4B 326853/HB1
510	680	500	500	9680	26000	2080	BC4B 319411
510	730	520	520	10200	22000	1660	BC4-8009/HB1
510	760	550	550	12100	26500	2000	BC4-8007/HB1
529.91	870	670	670	16800	33500	2450	312844/VJ202
536.176	762.03	558.8	558.8	11400	29000	2160	313535 D
550	740	510	510	11000	27000	2160	316691
556	800	580	580	10500	25500	1860	BC4-8046/HB1
559.84	920	710	710	20100	45500	3250	313189 A
560	820	600	600	14200	34000	2450	BC4B 322930/HA4
571.627	870	640	640	13400	40500	2900	BC4B 319446
600	820	575	575	14000	36000	2550	315175 C
600	870	578	540	13200	31500	2240	BC4B 322497/HA4
606.667	920	640	640	16500	45000	3100	315526
620	820	475	475	10100	26500	1900	BC4-8041/HA4
633.334	960	680	680	16800	45000	3150	BC4B 457969
660	820	440	440	8090	22800	1760	239509 FA
750	1090	750	750	21600	51000	3400	BC4-8066/HA3
759	1210	740	740	25500	85000	3800	313685 B
760	1080	790	790	23800	65500	4400	312979 D
780	1070	780	780	24200	61000	4050	BC4-8015/HB1
820	1100	745	720	21200	57000	3750	BC4B 316341/HA4
820	1130	800	800	24200	68000	4400	BC4B 320455
820	1130	825	800	24200	68000	4400	319313
850	1150	840	840	27500	75000	4800	315826 B
850	1180	850	850	28100	73500	4650	BC4-8021/HB1
900	1280	780	780	28600	64000	4050	BC4-8067/HA3
937.5	1270.25	825.5	825.5	28100	83000	5300	315265
1040	1440	1000	1000	38000	93000	5700	BC4-8062/HA1
1300	1655	890	880	40200	122000	7100	BC4-8016/HA4
1350	1765	1360	1360	40200	122000	6950	BC4-8029/HA4
1400	1780	1200	1200	52300	163000	9300	BC4-8042/HA4
1400	1900	1360	1360	61600	183000	10400	BC4-8005/HA4

Special variants

In addition to the bearings presented in this section, FV supplies cylindrical roller bearings for special application requirements. This assortment includes:

Bearings with Solid Oil
INSOCOAT bearings
Hybrid bearings
NoWear coated bearings
Super-precision bearings
Backing bearings
Indexing roller units
Cylindrical roller bearings and bearing units for railway applications ( contact FV )

Features and benefits:

High load carrying capacity
High stiffness
Accommodate axial displacement
Low friction
Long service life
Enhanced operational reliability
Separable and interchangeable

Special variants

In addition to the bearings presented in this section, FV supplies cylindrical roller bearings for special application requirements. This assortment includes:

Bearings with Solid Oil
INSOCOAT bearings
Hybrid bearings
NoWear coated bearings
Super-precision bearings
Backing bearings
Indexing roller units
Cylindrical roller bearings and bearing units for railway applications ( contact FV )

Features and benefits:

High load carrying capacity
High stiffness
Accommodate axial displacement
Low friction
Long service life
Enhanced operational reliability
Separable and interchangeable