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Ensure uncompromising precision in your CNC machine tool operations with the Self-Aligning Roller Bearing SKF 21310EK-21314EK, available in P0-P2 precision grades to minimize vibration and extend equipment lifespan. Engineered with double rows of roller bearings and a spherical outer ring design, this SKF bearing automatically compensates for shaft misalignment, reducing wear on critical components during high-speed machining.
| Parameter | Details |
|---|---|
| Model NO. | 21310EK |
| Precision Rating | P0 P6 P5 P4 P2 |
| Clearance | C0 C3 C4 |
| Rolling Body | Roller Bearings |
| The Number of Rows | Double |
| Material | Bearing Steel |
| Spherical | Aligning Bearings |
| Load Direction | Radial Bearing |
| Separated | Unseparated |
| Specification | 50*110*27 mm |
| Trademark | SKF |
| Origin | Sweden |
| HS Code | 8482300000 |
| Industry | Typical Equipment |
|---|---|
| Manufacturing | CNC Machine Tools, Spindles, Gearboxes |
CNC machine operators know the frustration of unexpected downtime caused by bearing failures. Misaligned shafts, variable loads, and precision demands often lead to premature wear, especially with non-genuine components. Sourcing replacement bearings from multiple suppliers further delays production, while inconsistent quality standards create hidden risks for your equipment's performance.
Our authorized distribution network ensures you receive 100% authentic SKF 21310EK self-aligning roller bearings, available in P0-P2 precision grades. As part of our ready stock program for P4/P2 precision bearings, we eliminate long lead times, getting critical components to your facility when you need them most. Whether for new machine builds or emergency repairs, our one-stop procurement process simplifies ordering, reducing coordination costs for cross-brand component needs.
Self-aligning roller bearings like the SKF 21310EK excel in CNC machine tools where shaft misalignment or deflection occurs. The double-row design handles radial loads and axial loads in both directions, while the spherical outer ring allows for angular misalignment up to 2.5 degrees. This capability ensures stable operation in high-precision machining centers, lathes, and milling machines, where maintaining accuracy under dynamic loads is essential.
The SKF 21310EK's 50x110x27 mm dimensions balance load capacity with compact installation, making it suitable for spindle assemblies and gearbox applications. Precision grades from P0 to P2 allow customization based on your machine's accuracy requirements—P2 grade bearings deliver minimal radial runout for high-speed spindles, while P0 grade offers cost-effective performance for general CNC applications. Clearance options (C0, C3, C4) accommodate thermal expansion and mounting conditions, ensuring proper preload and reducing vibration-induced wear.
Counterfeit bearings often fail prematurely due to substandard materials and manufacturing processes, leading to unplanned downtime that costs production facilities thousands in lost revenue. Genuine SKF bearings undergo rigorous testing to meet ISO 9001 and DIN standards, ensuring consistent performance and longer service life. By investing in authentic components, you reduce the total cost of ownership through fewer replacements, lower maintenance requirements, and improved machine uptime.
As an officially authorized SKF distributor, we guarantee product authenticity with complete certification documentation. Our ISO 9001-compliant quality management system includes incoming material verification and full-process precision testing, ensuring every bearing meets specification before shipment. With a senior application engineering team boasting extensive on-site experience, we provide tailored technical guidance—from bearing selection to lifecycle support. Trusted by over 800 clients across 45+ countries, our shockproof and dustproof logistics solutions preserve bearing accuracy during transportation, ensuring components arrive in optimal condition.
Don't let bearing issues disrupt your CNC production schedule. Send us your bearing designation, required precision grade, and quantity, and our team will provide a unified quotation within one working day. With ready stock available for immediate dispatch, we help you minimize downtime and keep your machines operating at peak performance.
Q: Are these genuine SKF bearings?
A: Yes, we are an officially authorized SKF distributor, guaranteeing 100% authentic products with complete traceability documentation and brand authorization certificates.
Q: How do I confirm if the 21310EK is suitable for my CNC machine?
A: Our senior application engineering team can verify compatibility based on your machine model, operating conditions, and load requirements. Provide your equipment details for a free technical assessment.
Q: What is your warranty policy?
A: All bearings come with SKF's standard manufacturer warranty, covering defects in materials and workmanship. We provide full after-sales support for warranty claims and technical issues.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, making us ideal for emergency repairs and small-batch requirements.
Q: How quickly can you ship the 21310EK bearings?
A: In-stock bearings are shipped within 24 hours of order confirmation, with delivery typically taking 3-7 business days via express courier.
Q: How can I verify the authenticity of the bearings?
A: Each bearing includes SKF's original packaging with security features, laser-etched part numbers, and serial codes verifiable through SKF's official channels. We also provide full certification documentation with each order.
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Technical needs assessment
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Pre-shipment inspection
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Our certified engineers respond within 24 hours with detailed technical specifications, pricing, and lead time information.