Type: Spherical roller bearing with double-row roller structure, capable of withstanding heavy radial loads + bidirectional axial loads, and accommodating shaft misalignment during installation
Basic Dimensions: For model "22207", the bore diameter is 35 mm (07×5 calculation) with typical outer diameter ≈ 72 mm and width ≈ 23 mm
Suffix Code Interpretation (Core Design)
Suffix
Technical Meaning & Value
CA
Brass cage:
Material properties: High strength and low density, enabling higher rotational speeds (outperforming steel cages)
Corrosion resistance: Resistant to mineral oils and alkaline lubricants, suitable for harsh operating conditions
Temperature adaptability: Brass cages typically ensure stable operation in medium-to-high-temperature environments
W33
Outer ring oil grooves + 3 lubrication holes:
Lubrication enhancement: Facilitates external lubrication systems (e.g., oil pumps) for continuous grease/oil lubrication, significantly reducing roller wear
Operating condition adaptability: Optimized for heavy loads, high speeds, or harsh scenarios (e.g., dust, moisture), improving bearing service life and stability
Applications & Advantages
Typical Scenarios
Mining machinery (crushers)
Gearboxes
Conveyor systems
Fans and other demanding applications requiring high load capacity, self-aligning capability, and lubrication efficiency
Core Competitiveness
Self-aligning capability of spherical roller bearings (compensates for shaft misalignment, reducing installation errors)
High-speed adaptability of brass cages (higher speed limits vs. steel cages)
Long service life guaranteed by W33 lubrication design (continuous lubrication suppresses wear, lowering maintenance frequency)