Four row cylindrical roller bearings FC5678220,equivalent to 507339/313822

FC5678220 rolling mill bearing 280x390x220 mm,cylindrical roller bearing,four row
--for interference fit on the roll neck,with circumferential lubricating grooves and lubricating holes on the outer ring

FC5678220 bearing details:

Bearing	Main Dimension(mm)				Load Rating(kN)		Mass
Design	d	D	B	Fw	Dyn.C	Stat.Co	kg
FC5678220	280	390	220	312	2240	5000	81.5
507339	FAG code
313822	SKF code
4R5611	NTN code
280RV3901	NSK code
FC5678220	China Code

Description:

Four row cylindrical roller bearings can carry much heavier radial load and shock load. They have higher precision and can be applied in the equipment which runs with high rotational speed. Grinding the surface of raceway and roller at same time after the inner ring is pressed on roller neck, it favors the improvement of rolling precision and the free adjustment of mounting clearance of bearings. These bearings are mostly applied to the working roller and backup roller of rolling mills and some other cases.

FC: double outer rings, single inner ring, and inner without flange.

FCD: double outer rings, double inner rings, and inner ring without flange.

FCDP: double outer rings, only have center flange, but with loose rib, double inner ring, inner without flange.

Part of Rolling Mill Bearings table:

Fag code	Fag old code	Skf code	Nsk-code	Ntn-code	Koyo-code
Z-502894.02.ZL	502894B	314190	160RV2301	4R3226	314190
Z-504547.ZL	504547	635194
Z-506962.ZL	506962	313891A	150RV2302	4R3040	313891-1
Z-507333.ZL	507333	313839	220RV3101	4R4426	313837A
Z-507336.ZL	507336	313823	260RV3701	4R5208	313823
Z-507339.ZL	507339	313822	280RV3901	4R5611	313822
Z-507344.ZL	507344	314385	200RV2804	4R4048	40FC28170
Z-507536.ZL	507536	313812	180RV2601	4R3628	313812W
Z-507735.ZL	507735	313651	190RV2601	4R3820	38FC26168-1
Z-508657.ZL	508657	314199B	190RV2701	4R3821	314199
Z-508726.ZL	508726	313893	200RV2802
Z-508727.ZL	508727	313824	230RV3301	4R4610	313824
Z-510150.02.ZL	510150B	315189A	160RV2302	4R3232
Z-511605.ZL	511605	314625	145RV2101	4R2906	29FC21155
Z-512580.ZL	512580	313811	200RV2901	4R4041	313811
Z-512764.ZL	512764	313924A	145RV2201	4R2904	313924
Z-522742.ZL	522742	314553		4R4039	314553
Z-524289.02.ZL	524289B	314484D	300RV4221	4R6020	4CR300
Z-527104.ZL	527104	314719	280RV3903
Z-527634.ZL	527634	314485	340RV4801	4R6819	68FC48350D
Z-529468.N12BA	529468.N12BA	315642/VJ202
Z-543975.ZL	543975	314486A	370RV5211
Z-804868.ZL-N12BA	804868.N12BA	314997VJ/202