High Precision SKF 6911 2RS Deep Groove Ball Bearing for CNC Machine Tools 55x80x13mm

Product Specifications

Application Industries

Minimize CNC Downtime with Genuine SKF 6911 2RS Deep Groove Ball Bearings

CNC machine operators know the frustration of unexpected spindle failures—replacements delayed by unreliable suppliers, questionable part authenticity, and mismatched specifications that turn a 2-hour repair into a 2-day production halt. When precision machining depends on consistent radial load handling and low friction, settling for substandard bearings isn’t just a cost issue; it’s a threat to part quality and delivery deadlines.

Authentic SKF 6911 Bearings in Stock for Immediate Dispatch

As an officially authorized SKF distributor, we eliminate these headaches with 100% genuine 6911 2RS deep groove ball bearings available for same-day shipping. Our P4/P2 precision grade inventory includes the 55x80x13mm dimension critical for CNC spindle applications, backed by full manufacturer certification and batch traceability. Whether you’re replacing a worn bearing in a vertical machining center or stocking maintenance spares, our engineering team ensures proper fit and performance alignment with your equipment’s operating parameters.

Engineered for High-Speed CNC Operations

The SKF 6911 2RS excels in the demanding environment of CNC machine tools, where rotation speeds exceed 10,000 rpm and radial loads require consistent performance. Its non-aligning design maintains precision under axial stress, while the 2RS rubber seals provide effective protection against coolant ingress and particulate contamination—common causes of premature bearing failure in machining environments. This deep groove ball bearing’s 0° contact angle optimizes radial load distribution, making it ideal for spindle assemblies and feed drive systems where dimensional accuracy is non-negotiable.

Performance Parameters That Matter in Precision Machining

Three technical specifications separate the SKF 6911 from generic alternatives: precision rating, vibration class, and seal integrity. Available in P0 to P4 grades, the P4 precision variant delivers micron-level runout control essential for high-speed spindles, reducing tool chatter and improving surface finish quality. Vibration classes Z1V1 to Z3V3 ensure smooth operation at elevated speeds, minimizing energy loss and heat generation. The dual 2RS seals balance contamination resistance with minimal friction, extending maintenance intervals without compromising speed capability—critical for lights-out manufacturing operations.

Why Genuine SKF Bearings Lower Total Cost of Ownership

Counterfeit bearings may cost 30% less upfront, but their unpredictable service life often leads to catastrophic failures. A single spindle seizure can damage costly motor windings and require complete gearbox overhauls, resulting in repair bills 10–15 times the cost of a genuine bearing. Our ISO 9001/DIN-compliant quality control includes pre-shipment precision testing, ensuring each SKF 6911 bearing meets original equipment manufacturer (OEM) tolerances. By investing in authentic components, you reduce unplanned downtime, extend maintenance cycles, and protect your CNC machine’s long-term accuracy.

Our Commitment to Reliable Bearing Supply

Packaging & Shipping

• Original SKF packaging with anti-counterfeit labeling and batch code verification
• Reinforced carton pallet packaging to prevent damage during transport
• Express delivery options via DHL, FedEx, or UPS for urgent maintenance needs
• Real-time logistics tracking with delivery confirmation
• Minimum order quantity of 1 unit, supporting both emergency repairs and bulk inventory replenishment

Secure Your CNC Spindle Performance Today

Don’t let bearing-related downtime disrupt your production schedule. Whether you need a single SKF 6911 2RS bearing for an emergency repair or a quarterly supply contract, our team provides technical confirmation within one working day. Send your CNC machine model, spindle specifications, and required quantity to receive a detailed quotation—including compatibility verification and delivery timeline.

Frequently Asked Questions