Detailed description
Description:Four row cylindrical roller bearing with tapered bore (taper 1:12)
Type:500857A Four row Cylindrical roller bearing with tapered bore (taper 1:12)
Dimension:231/249.333X330X235mm/Metic
ID(inner diameter)/Bore:231 mm, d1=249.333 MM
OD(outer diameter):330 mm
Width/Height/thickness:235 mm
Fw:270 mm
Number of roller:Four row
Quantity: One Bearing
Dynamic load rating Cr: 2080 KN
Static load rating Cor: 4250 KN
Weight:58 KGS
Forging material:GCr15SiMn GCr15,G20Cr2Ni4A (Case hardened steel )
The cage type: Brass solid cages or pin-type cages
The delivery time:20-30 days
The package:standard export wooden case or carton boxes.
500857A Four-row cylindrical roller bearings are the one of the main bearings for rolling mills.They mount for interference fit on the roll neck.
They have compact structures and high stiffness,and can carry high radial loads but not axial loads.
Because of inner rings with no ribs, inner and outer ring subassembly (with full set of rollers and cage) can be mounted respectively. Cleaning, inspecting and dismounting are very convenient.
Four row cylindrical roller bearings are especially applied to rolling mills required high speed and precision, for example,wire mills,bar and shape mills,cold or hot sheet mills and cogging mills.
Brass solid cages or pin-type cages are mainly used in four-row cylindrical roller bearings.













