BC3B320899 Bore 180 Mm, Backing Bearings For Cluster Mills
The BC3B320899 Backed bearings are suitable for heavy-duty rolling equipment such as multi-roll cold rolling mills. Classic applications include backing rolls in multi-roll mills, straighteners, bending machines, support rolls in Sendzimir mills, and work roll support systems in strip mills.
The BC3B320899 bearing is a Backing bearings for cluster mills with an inner diameter of 180 mm , an outer diameter of 406.42 mm, a width of 171 mm. It typically uses P4 (ABEC 7) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic radial rated load is approximately 1414097 N, its static radial rated load is approximately 2495535 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
BC3B320899 bearings ( 180 mm x 406.42 mm x 171 mm) have the advantages of High rigidity, high load-bearing capacity and precision retention, and are therefore widely used in the Backing for multi-roll mills.
| Part Number | BC3B320899 |
| Interchangeable | SKF BC3B320899 |
| Cage | Machined brass cage, roller centred |
| Bearing Type | Backing bearings for cluster mills |
| Load | radial |
| Accuracy class | P4 (ABEC 7) |
| Coating | NO |
| Bearing part | Complete |
| Row NO. | Three |
| Seal | Open |
| Units | Metric |
| Manufacturer Part Code | BC3B 320899 |
| Series | BC3B series(BC3B 3208..) |
| Application | cluster mills |
| Relubrication feature | Yes |
| Weight [lb] | 286.5980 |
| Cr Radial Dynamic [lbf] | 317889 |
| C0r Radial Static [lbf] | 560996 |
| Fr max. Dynamic radial loads [lbf] | 289360 |
| F0r max. Static radial loads [lbf] | 410217 |
| d φ Inside [inch] | 7.0866 |
| D Φ Outside [inch] | 16.0008 |
| B Thickness [inch] | 6.7323 |
| C [inch] | 6.7323 |
| H(max.) Section height [inch] | 4.457 |
The BC3B320899 Backed bearings primarily consist of an inner ring, an outer ring, single-row, double-row, or triple-row cylindrical rollers, and a cage. The outer ring is exceptionally thick, and the rollers and raceways feature a logarithmic profile design to optimize load distribution and reduce edge stress.
Backed bearings possess extremely high load-carrying capacity, capable of withstanding heavy loads and impact loads, while exhibiting low friction, minimal heat generation, and a long service life. The outer surface of the outer ring also utilizes a logarithmic profile, reducing edge loads during operation and improving operational reliability.
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