C3026 Bore 130 Mm, CARB Toroidal Roller Bearings
The C3026 CARB ring roller bearings are widely used in continuously operating equipment where misalignment and thermal expansion occur, specifically including: papermaking machinery (drying cylinders, calenders), wind power generation (main shafts), industrial gearboxes, continuous casting lines, ship propulsion shafts, and large wind turbines.
The C3026 bearing is a CARB toroidal roller bearings with an inner diameter of 130 mm , an outer diameter of 200 mm, a width of 52 mm. It typically uses PN grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Its dynamic radial rated load is approximately 388815 N, its static radial rated load is approximately 584822 N. It uses CN standard radial clearance, Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
C3026 bearings ( 130 mm x 200 mm x 52 mm) have the advantages of Self-aligning + displacement, high load capacity, long service life, and are therefore widely used in the Papermaking machinery, wind turbines, industrial gearboxes, material conveying equipment and vibrating screens.
| Part Number | C3026 |
| Interchangeable | SKF C3026 |
| Cage | a mtamped steel cage, window-type, roller centred |
| Bearing Type | CARB toroidal roller bearings |
| Load | radial |
| Accuracy class | PN |
| Bearing part | Complete |
| Internal clearance | CN |
| Row NO. | One |
| Heat stabilized | 200 °C (390 °F) |
| Seal | Open |
| Units | Metric |
| Manufacturer Part Code | C 3026 |
| Series | C30 series (C30..) |
| Lubrication | NO |
| Locating feature | NO |
| Relubrication feature | NO |
| Weight [lb] | 13.0071 |
| Cr Radial Dynamic [lbf] | 87405 |
| C0r Radial Static [lbf] | 131467 |
| Pu Fatigue load limit [lbf] | 12939 |
| nB Speed ratings (grease) [rpm] | 2718 |
| nG Speed ratings (oil) [rpm] | 3719 |
| d φ Inside [inch] | 5.1181 |
| D Φ Outside [inch] | 7.8740 |
| B Thickness [inch] | 2.0472 |
| r1,2 min Chamfer [inch] | 0.0787 |
| d2 [inch] | 6.0236 |
| D1 [inch] | 7.0866 |
| s1 max. Permissible axial displacement [inch] | 0.6496 |
| ra max Radius of fillet [inch] | 0.0787 |
| Da min [inch] | 6.8898 |
| da min [inch] | 5.5118 |
| Da max [inch] | 7.480 |
| da max [inch] | 6.378 |
| Ca min. [inch] | 0.043 |
| k1 Misalignment Coefficient | 0.101 |
| k2 Internal clearance Coefficient | 0.123 |
The C3026 CARB ring roller bearings consist of an inner ring (with double raceways), a spherical outer ring, ring rollers (symmetrical rollers with a special profile), and a cage. The outer ring raceways are spherical, and the rollers are arranged in a ring, combining the structural characteristics of self-aligning roller bearings and cylindrical roller bearings.
CARB ring roller bearings integrate self-aligning capability and axial displacement capability, compensating for shaft bending and misalignment (self-aligning function) while allowing bidirectional axial displacement between the shaft and the bearing housing (floating function). They have extremely high radial load capacity, with line contact between the rollers and raceways, resulting in uniform stress distribution. Their compact structure allows them to replace the combination of self-aligning roller bearings and floating end bearings, simplifying system design.
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