B7310G Bore 380 Mm, Triple Ring Bearings For Paper Industry (controlled Crown Rolls)
The B7310G The TL series spherical roller bearing are specifically designed for the drying section of paper machinery and are suitable for high-temperature, heavy-duty conditions in drying cylinder rolls, calenders, Yankee drying cylinders, and other paper processing equipment.
The B7310G bearing is a Spherical roller bearings as inner and outer bearings with an inner diameter of 380 mm , an outer diameter of 980 mm, a width of 308 mm. GCr15SiMn rings, GCr15SiMn rolling mlement. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: FAG Z-522934.04.DRGL , SKF BSTB461903C , Torrington B9310G (B7310G)
B7310G bearings ( 380 mm x 980 mm x 308 mm) have the advantages of High temperature resistance, fracture resistance, doubled lifespan, stable and reliable, and are therefore widely used in the Paper machinery.
| Part Number | B7310G |
| Bearing Type | Spherical roller bearings as inner and outer bearings |
| Design type | Beloit design |
| Interchangeable | Torrington B7310G |
| Application | paper industry (controlled crown rolls) |
| Cage | Solid brass |
| Seal | Open |
| Alias | Triple ring bearings |
| Equivalent | FAG Z-522934.04.DRGL , SKF BSTB461903C , Torrington B9310G (B7310G) |
| Customer designation | Beloit O.S-20350-02 |
| Bearing Mass - m [lb] | 3196.6700 |
| Inner design | 24276-B-MB |
| Outer design | 240/670-B-MB |
| Dimension | |
| Inside - d φ [inch] | 14.9606 |
| Outside - D Φ [inch] | 38.5826 |
| Width - C [inch] | 12.1260 |
| Width - B1 [inch] | 11.8110 |
| Width - B2 [inch] | 17.0000 |
| Performance | |
| Radial Dynamic (Inner) - Cr [lbf] | 1416127 |
| Radial static (Inner) - C0r [lbf] | 2674735 |
| Radial Dynamic (Outer) - Cr [lbf] | 2023036 |
| Radial static (Outer) - C0r [lbf] | 4832889 |
| Fatigue limit load (Inner) - Cur [lbf] | 208808 |
| Fatigue limit load (Outer) - Cur [lbf] | 327807 |
| Limiting speed (Outer) - nG [min–1] | 424 |
The B7310G The TL series spherical roller bearing mainly consist of inner and outer rings, drum-shaped rollers, and a cage. The inner ring is made of special alloy steel and undergoes a carbonitriding heat treatment process. It is equipped with a heavy-duty machined brass cage (CA type) and is available in both cylindrical and tapered bore configurations, with radial clearance options ranging from C3 to C5.
The TL series spherical roller bearing exhibit significantly improved resistance to inner ring cracking, effectively solving the problem of inner ring fracture caused by high temperatures and rapid temperature rise in the drying section of paper machines. They maintain dimensional stability at temperatures up to 200°C, have high raceway surface hardness, and their lifespan is more than twice that of conventional bearings under conditions of foreign object intrusion.
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