High Precision SKF 6307 Deep Groove Ball Bearing 35x80x21mm for CNC Machine Tools

Product Specifications

Application Industries

Stop CNC Downtime — Authentic SKF 6307 Bearings Delivered Fast

CNC machine operators know the cost of unexpected spindle failure: unplanned downtime, missed deadlines, and costly repairs. Many face the dilemma of long lead times for genuine bearings or risky counterfeits that fail prematurely. Sourcing multiple bearing types from different suppliers only adds coordination headaches and delays maintenance.

Genuine SKF 6307 Bearings, In Stock and Ready to Ship

Our High Precision SKF 6307 Deep Groove Ball Bearing solves these challenges with 100% authentic products backed by official brand authorization. With P4 precision grade readily available in our stock, we ensure rapid delivery to minimize your equipment downtime. This 35x80x21mm bearing is engineered for CNC machine tool spindles, where radial load capacity and high rotational accuracy are critical for consistent machining performance.

Engineered for High-Precision Machining Environments

The SKF 6307 deep groove ball bearing excels in applications requiring smooth, low-vibration operation at moderate to high speeds. Its single-row design and 0° contact angle optimize radial load handling, making it ideal for CNC spindle systems where precision and reliability directly impact part quality. The bearing’s bearing steel construction ensures durability under continuous operation, while options for Zz, 2RS, or open seals accommodate varying contamination and lubrication needs in machine tool environments.

Technical Details That Define Performance

Precision rating is a cornerstone of this bearing’s performance—P4 grade ensures minimal radial and axial runout, critical for maintaining tight tolerances in CNC machining. Vibration classes Z1V1 to Z3V3 allow customization based on noise sensitivity: Z3V3 provides the lowest vibration for high-precision finishing operations. The unseparated design simplifies installation and maintenance, while the choice between grease or oil lubrication offers flexibility for different operating speeds and temperatures. These specifications collectively reduce wear on spindle components, extending both bearing life and machine uptime.

The Hidden Costs of Counterfeit Bearings

Choosing non-genuine SKF 6307 bearings may seem cost-effective initially, but the long-term consequences are severe. Counterfeit bearings often fail within months, causing spindle damage, production delays, and replacement costs that far exceed the initial savings. Our ISO 9001 and DIN compliant quality control ensures every bearing meets SKF’s strict standards, eliminating the risk of premature failure. By investing in authentic bearings, you reduce total cost of ownership through longer service life and fewer unplanned maintenance events.

Why CNC Shops Trust Our Bearing Solutions

Packaging & Shipping

• Original SKF packaging with protective inner carton and outer pallet reinforcement
• Package Size: 10.00cm × 10.00cm × 4.10cm
• Package Gross Weight: 0.480kg
• Express delivery via DHL, FedEx, or UPS with real-time tracking
• 1 piece minimum order quantity, ideal for emergency maintenance

Get Your SKF 6307 Bearing Today

Don’t let bearing issues disrupt your CNC production schedule. Send us your bearing model, quantity, and application details, and our team will provide a unified quotation within one working day—complete with authorization certificates and quality inspection documents. With our ready stock, you can have your SKF 6307 bearing delivered in days, not weeks.

Frequently Asked Questions