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Identification
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- Visual Shape: Two rows of barrel-shaped rollers with a common spherical outer raceway.
- Self-Alignment: Tolerates shaft deflection and misalignment under heavy radial load.
- Common Markings: 222xx, 223xx, 22xxx, 23xxx, CC, CA, E, W33, K, C3/C4.
- Key Checks: Confirm taper/straight bore, clearance, cage and adapter sleeve requirement.
- Do Not Confuse With: Cylindrical roller bearings.
Application
- Mining & Construction Machinery: Used in crushers, conveyors, screens, and vibrating equipment where shock loads are common.
- Wind Turbines: Support large shafts where high radial loads and shaft deflection occur.
- Steel Mills: Used in continuous casting machines, trunnions, and rolling mills.
- Pulp & Paper Processing: Suited to long rolls that can sag or deflect under load and heat.
- Heavy Gearboxes & Fans: Applied in large gearboxes, blowers, fans, and pumps.
- Marine & Offshore: Used in propulsion systems, winches, and offshore drilling equipment.
Brands
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Common brands and references to check for this product type.
SKF
NSK
NTN
FAG / INA
Timken
Koyo / JTEKT
Nachi
NKE
Brand availability varies by branch, supplier and application. Always confirm exact series, suffixes and dimensions before quoting.
Suppliers
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