802070AM Bore 1070 Mm, Tapered Roller Bearings, Four Row For Rolling Mills, Machined Steel Cages
The 802070AM Four-row tapered roller bearings are suitable for applications involving heavy combined loads. Classic applications include rolling mill work rolls, heavy machine tool spindles, mining crushers, oil drilling rig turntables, large wind turbine spindles, and shaft positioning ends of ship propulsion systems.
The 802070AM bearing is a Tapered Roller Bearings, four row for Rolling Mills (in metric dimensions) with an inner diameter of 1070 mm , an outer diameter of 1400 mm, a width of 889.6 mm. Bearing steel rings, Bearing steel rolling mlement. It primarily bears Radial and axial loads, Its dynamic radial rated load is approximately 32500000 N, its static radial rated load is approximately 91500000 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
802070AM bearings ( 1070 mm x 1400 mm x 889.6 mm) have the advantages of It can withstand extremely high radial loads and bidirectional axial loads, has a compact structure, and is highly rigid, making it suitable for heavy-duty impact conditions, and are therefore widely used in the Metallurgical rolling mills, large gearboxes, heavy mining machinery, oil drilling equipment.
| Part Number | 802070AM |
| Interchangeable | FAG 802070AM |
| Desgin Figure | 3 |
| Cage | machined steel cages - pin type |
| Seal | Open |
| Bearing Type | Tapered Roller Bearings, four row for Rolling Mills (in metric dimensions) |
| Other | Bearing with four outer rings |
| Bearing Weight [lb] | 8134.974 |
| d φ Inside [inch] | 42.126 |
| D Φ Outside [inch] | 55.118 |
| B Width [inch] | 35.024 |
| Bi Width [inch] | 35.039 |
| rs min Chamfer Cup | 13.2 mm |
| r1s min Chamfer Cone | 5.1 mm |
| Cr Radial Dynamic [lbf] | 7306000 |
| C0r Radial Static [lbf] | 20569200 |
| Factor | |
| e | 0.36 |
The 802070AM Four-row tapered roller bearings typically consist of two double-raceway outer rings, two single-raceway inner rings, four rows of tapered rollers, a cage, and a spacer. The inner and outer rings and rollers are designed in metric or imperial units. The axial clearance or preload can be precisely adjusted by grinding the spacer.
The advantage of four-row tapered roller bearings is that they can withstand huge radial loads and bidirectional axial loads at the same time. They have extremely high overall rigidity and excellent load-bearing capacity, making them suitable for use as fixed ends to achieve precise axial positioning. However, their limiting speed is relatively lower than that of cylindrical roller bearings.
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