High Precision Deep Groove Ball Bearings 6403 6804 6904 16004 6004 6204 for CNC Machine Tools

Product Specifications

Application Industries

Reduce CNC Downtime with Precision Deep Groove Ball Bearings 6403-6204

CNC operators know the cost of unexpected spindle failure—hours of production lost, missed deadlines, and expensive repairs. Many bearing suppliers offer limited precision grades or lengthy lead times, forcing shops to compromise on performance. When sourcing Deep Groove Ball Bearings for CNC Machine Tools, inconsistent quality across multiple suppliers often leads to premature wear, vibration issues, and poor surface finishes on machined parts.

High Precision Bearings in Stock for Immediate Delivery

Our High Precision Deep Groove Ball Bearings, including models 6403, 6804, 6904, and 6204, address these challenges directly. As an officially authorized distributor, we maintain ready stock of P4/P2 precision grade bearings, ensuring same-day processing for urgent orders. Each bearing undergoes standardized precision testing before shipment, verifying dimensions, radial runout, and surface smoothness to meet the strict demands of CNC machine spindles operating at high speeds and loads.

Optimized Performance in Critical CNC Applications

These Precision Bearings for Industrial Automation excel in environments requiring both radial and axial load tolerance. In CNC spindle applications, the 6204 series delivers exceptional rotational accuracy, minimizing tool runout and improving workpiece precision. The 6904 model, with its reduced cross-section, is ideal for compact servo motor assemblies where space is limited. Whether used in vertical machining centers or horizontal lathes, these bearings maintain stable performance across temperature variations and continuous operation cycles.

Technical Features That Maximize CNC Productivity

The 17*62*17mm specification (bore diameter * outer diameter * width) balances load capacity with rotational speed, a critical factor for spindle efficiency. Dynamic load ratings are engineered to handle the cyclic forces generated during heavy cutting operations, while the grease or oil lubrication options allow customization for specific operating temperatures and speeds. Precision class P4/P2 ensures minimal clearance, reducing vibration that can compromise machining accuracy. The deep groove design also facilitates easy mounting and alignment, simplifying maintenance procedures during scheduled downtime.

Why Genuine Bearings Lower Total Cost of Ownership

Counterfeit bearings may offer lower upfront prices, but they often lack proper heat treatment and material quality, leading to premature failure. A single spindle collapse can cost thousands in replacement parts and lost production—far exceeding the savings from cheap alternatives. Our bearings, sourced from Germany, Sweden, and Japan, come with full certification documentation, ensuring traceability from manufacturing to delivery. By investing in authentic High Precision Deep Groove Ball Bearings, CNC operators reduce unplanned downtime by up to 40% compared to using non-certified components.

Our Commitment to Reliability

Packaging & Shipping

• Protective individual packaging with product specifications and batch information
• Reinforced outer cartons to prevent damage during transportation
• Global delivery via DHL, FedEx, or UPS with real-time tracking
• Expedited shipping options available for emergency maintenance needs
• Minimum order quantity: 1 piece, supporting both small repairs and large production runs

Get Your CNC Bearings Shipped Today

Don’t let bearing issues slow your production. Send us your required model numbers (6403, 6804, 6904, 16004, 6004, or 6204), CNC machine details, and quantity, and our team will provide a detailed quote within 24 hours. With ready stock and precision testing completed, we can have your bearings on the way to your facility in as little as 3 business days.

Frequently Asked Questions