BCZ-0503 AA Bore 70 Mm, Backing Bearings For Cluster Mills
The BCZ-0503 AA 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 BCZ-0503 AA bearing is a Backing bearings for cluster mills with an inner diameter of 70 mm , an outer diameter of 165 mm, a width of 120 mm. It typically uses P4 (ABEC 7) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic radial rated load is approximately 313235 N, its static radial rated load is approximately 464702 N. Seal on both sides type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
BCZ-0503 AA bearings ( 70 mm x 165 mm x 120 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 | BCZ-0503 AA |
| Interchangeable | SKF BCZ-0503 AA |
| Cage | Machined metal |
| Bearing Type | Backing bearings for cluster mills |
| Load | radial |
| Accuracy class | P4 (ABEC 7) |
| Coating | NO |
| Bearing part | Complete |
| Design | With axial guidance |
| Row NO. | Three |
| Seal | Seal on both sides |
| Sealing type | Contact |
| Number of holes | 1 |
| Units | Metric |
| Manufacturer Part Code | BCZ-0503AA |
| Series | BCZ series(BCZ-05.. AA) |
| Application | cluster mills |
| Relubrication feature | Yes |
| Weight [lb] | 32.1872 |
| Cr Radial Dynamic [lbf] | 70415 |
| C0r Radial Static [lbf] | 104465 |
| Pu Fatigue load limit [lbf] | 13231 |
| Fr max. Dynamic radial loads [lbf] | 79760 |
| F0r max. Static radial loads [lbf] | 114437 |
| d φ Inside [inch] | 2.7559 |
| D Φ Outside [inch] | 6.4961 |
| B Thickness [inch] | 4.7244 |
| C [inch] | 4.6457 |
| K [inch] | 0.1969 |
| r min. Chamfer [inch] | 0.059 |
| d1 [inch] | 3.5433 |
| D1 [inch] | 4.3307 |
| H(max.) Section height [inch] | 1.870 |
The BCZ-0503 AA 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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