21309-21314 Spherical Roller Bearings: High Capacity, Low Friction, W33
Basic Info
| Inner Diameter | 100 mm |
|---|---|
| Outer Diameter | 215 mm |
| Width | 47 mm |
Introduction
Self-aligning roller bearing with spherical design for radial load support. Made of high-grade bearing steel, suitable for grease or oil lubrication. Features adjustable clearance (C0/C3/C4) and precision ratings from P0 to P2. Ideal for misaligned shaft applications in industrial OEM/ODM use.
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Description
Key Features & Technical Highlights
| Description | Core Value |
|---|---|
| Spherical roller bearing, 213 series (21309–21314) | Self-aligning capability compensates for shaft misalignment up to ±1.5° — extends service life in demanding industrial setups |
| Dimensions: 100×215×47 mm (21314 model) | Precise OEM/ODM fit for mining, cement, steel mill, and power generation equipment |
| CC CA W33 design | Enhanced cage strength (CC), high-load optimized geometry (CA), and relubrication grooves + seals (W33) — ideal for continuous heavy-duty operation |
| Bearing steel construction | ISO-standard GCR15 / SAE 52100 material — hardened to HRC 60–64 for superior wear resistance |
| P0–P2 precision grades & C0–C4 clearance options | Customizable for high-speed or high-temperature applications without redesign |
| Radial load capacity >450 kN (21314) | Among the highest in its class — reduces bearing count per assembly and lowers TCO |
| Grease or oil lubrication compatible | Flexible maintenance integration — supports centralized lube systems and long-interval relubrication |
| Manufactured in ISO 9001-certified Chinese facilities | Rigorous 100% dimensional & noise testing — meets SKF/NSK/NTN interchange standards |
| OEM/ODM support with carton/pallet packaging | Fast lead time (15–25 days), full traceability, and private-label options available |
| HS Code 8482300000 — globally compliant | Seamless customs clearance for EU, US, ASEAN, and Middle East markets |
