High Precision Deep Groove Ball Bearing SKF 6306 30x72x19mm 2RS1/C3 for CNC Machinery

Product Specifications

Application Industries

Eliminate CNC Downtime with Genuine SKF 6306 2RS1/C3 Bearings

CNC operators know the cost of unexpected spindle failure—hours of production lost, missed deadlines, and emergency repair bills. Many turn to uncertified suppliers for quick fixes, only to face premature bearing wear caused by substandard materials or poor manufacturing tolerances. Sourcing multiple bearing types from different vendors further complicates logistics, leading to delayed deliveries and mismatched quality standards.

Precision Engineered for CNC Machinery Performance

Our SKF 6306 2RS1/C3 deep groove ball bearing is designed to solve these challenges. As an official SKF distributor, we ensure every unit meets the brand’s strict quality criteria, with a precision rating up to P2 grade that guarantees consistent performance in high-speed CNC applications. The 30x72x19mm dimensions and C3 clearance make it ideal for motor spindles and gearboxes, where radial load capacity and thermal expansion compensation are critical.

Optimized for High-Speed, Heavy-Duty Operations

This SKF deep groove ball bearing excels in environments where rotational speeds exceed 10,000 rpm, such as CNC lathes and milling machines. Its 2RS1 seals provide effective protection against coolant and metal chips, while the bearing steel construction ensures durability under continuous operation. The non-aligning design maintains stability even under moderate shaft misalignment, reducing vibration and extending equipment lifespan.

Technical Features That Maximize CNC Uptime

The C3 clearance rating is particularly important for CNC applications, allowing for thermal expansion during extended use without compromising precision. This prevents premature bearing lock-up and ensures consistent spindle accuracy. The Z3V3 vibration class further minimizes operational noise and resonance, critical for maintaining surface finish quality in precision machining. With a static load capacity suitable for radial loads up to 15 kN (typical for SKF 6306 series), this bearing balances durability and performance for heavy-duty CNC operations.

Avoid the Hidden Costs of Counterfeit Bearings

Non-genuine bearings may cost 30% less upfront, but they often fail within 3-6 months in CNC applications. A single spindle failure can result in $5,000+ in repair costs and 48+ hours of downtime. Our ISO 9001-compliant inspection process verifies every bearing’s dimensions, material composition, and load ratings before shipment, ensuring compliance with DIN standards and SKF’s original specifications. This attention to quality reduces total cost of ownership by minimizing unplanned maintenance and extending service intervals.

Why 800+ Global Clients Trust Our Bearings

Packaging & Shipping

• Original SKF packaging with anti-counterfeit labels and batch traceability documentation
• Reinforced carton palletizing for shock protection during transit
• 3-7 business day delivery for in-stock items via DHL, FedEx, or UPS
• Real-time logistics tracking and delivery confirmation
• Minimum order quantity: 1 unit, supporting emergency maintenance needs

Get Your CNC Back to Full Production

Don’t let bearing issues disrupt your manufacturing schedule. Send us your SKF 6306 bearing requirements, including quantity and application details, and our team will provide a detailed quote within 24 hours. With our precision testing procedures and premium logistics, you can trust that your order will arrive on time and ready to install.

Frequently Asked Questions