High Precision SKF Deep Groove Ball Bearing 6221 6321 for CNC Machine Tools 105x190x36mm

Product Specifications

Application Industries

Eliminate CNC Downtime with Genuine SKF 6221 & 6321 Deep Groove Ball Bearings

CNC machine operators know the cost of unexpected spindle failure—hours of production lost, missed deadlines, and emergency repair bills. Many turn to unauthorized suppliers for quick fixes, only to face premature bearing failure caused by counterfeit components or improper material quality. Sourcing multiple bearing models from different vendors complicates inventory management and delays maintenance, especially when cross-brand compatibility verification is needed.

High Precision SKF Bearings In Stock for Immediate Delivery

Our High Precision SKF Deep Groove Ball Bearings 6221 and 6321 are engineered to meet the rigorous demands of CNC machine tool spindles, where radial load capacity and rotational accuracy directly impact machining precision. As an officially authorized SKF distributor, we maintain ready stock of P4/P2 precision grade bearings, ensuring your critical maintenance or production needs are met with minimal lead time. Each bearing undergoes standardized precision testing before shipment, confirming compliance with ISO 9001 and DIN quality standards.

Optimal Performance in High-Speed Machining Environments

These SKF deep groove ball bearings excel in applications requiring both high rotational speed and radial load support—common in CNC lathes, milling machines, and grinding centers. With a contact angle of 0°, they are designed to handle pure radial loads efficiently, while their single-row configuration minimizes friction and heat generation during continuous operation. The 105×190×36mm dimension ensures compatibility with standard spindle assemblies, making them a direct replacement for worn or damaged units in popular CNC models.

Technical Features That Ensure Long-Term Reliability

Constructed from high-grade bearing steel, these bearings offer exceptional durability under heavy loads and repeated cycles. The precise dimensional tolerance (105mm bore, 190mm outer diameter, 36mm width) guarantees proper fit, reducing vibration and noise during operation—critical factors in achieving tight machining tolerances. Their zero contact angle design optimizes load distribution across the raceways, extending service life in high-speed applications compared to non-precision alternatives. Each unit is factory-lubricated for immediate installation, eliminating the risk of contamination from improper lubrication practices.

Why Authenticity Matters for Your Bottom Line

Counterfeit bearings often cut corners on material quality and manufacturing processes, leading to premature fatigue failure. A single spindle breakdown from a fake bearing can cost thousands in repair parts, labor, and unplanned downtime—far exceeding the initial savings of choosing an unauthorized supplier. Our SKF 6221 and 6321 bearings come with complete certification documentation, ensuring full traceability from production to delivery. By investing in genuine components, you reduce the risk of secondary equipment damage and lower long-term maintenance costs.

Why 800+ Global Clients Trust Our Bearing Solutions

Packaging & Shipping

• Original SKF packaging with protective inner casing to prevent damage during transport
• Available for immediate dispatch with 3-7 business day delivery to major industrial hubs
• Flexible shipping options including DHL, FedEx, UPS, air freight, and sea freight
• Real-time logistics tracking provided for all orders
• No minimum order quantity—supports both emergency repairs and bulk production requirements

Get Your CNC Bearings Shipped Today

Every hour of CNC downtime erodes your production capacity and profitability. Our in-stock SKF 6221 and 6321 bearings are ready to ship, with technical support available to confirm compatibility with your equipment. Whether you need a single replacement or a bulk order, we streamline the procurement process to get your machines back online faster.

Frequently Asked Questions