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Ensure peak precision for your CNC machine tools with this Deep Groove Ball Bearing 693, crafted from premium Gcr15 steel to deliver consistent performance in high-precision industrial applications. The P4 precision grade guarantees minimal vibration (Z3V3 class available) and tight dimensional tolerance (3x8x3mm), reducing unplanned downtime and supporting smooth operation even under continuous heavy loads.
| Parameter | Details |
|---|---|
| Model NO. | 693 |
| Product Name | Deep Groove Ball Bearings |
| Specification | 3*8*3 mm |
| Material | Bearing Steel |
| Precision Rating | P0 P6 P5 P4 P2 |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Seals Type | Zz 2RS Open |
| Lubrication | Grease or Oil |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Trademark | SKF |
| Origin | Japan |
| HS Code | 8482102000 |
| Package Size | 10.00cm * 10.00cm * 0.40cm |
| Package Gross Weight | 0.010kg |
| Industry | Typical Equipment |
|---|---|
| Manufacturing | CNC Machine Tools, Precision Spindles, Automated Production Lines |
| Semiconductor | Wafer Processing Equipment, Precision Positioning Systems |
| Medical Equipment | Surgical Robots, Diagnostic Imaging Machines |
| Aerospace | Avionic Components, Precision Actuators |
CNC machine operators know the frustration of unexpected spindle failure—hours of production lost, maintenance crews rushed, and deadlines missed. Many times, the culprit is a substandard bearing that fails prematurely under high-speed operation. Sourcing reliable P4 precision bearings often means coordinating with multiple suppliers, each with different lead times and quality standards, creating delays when you need parts most.
Our Deep Groove Ball Bearing 693 with Gcr15 steel and P4 precision is engineered to eliminate these headaches. As an officially authorized distributor, we maintain sufficient ready stock of P4/P2 precision grade bearings, ensuring your CNC machine tools get the exact component they need without long wait times. Whether you're replacing a worn bearing in a vertical machining center or building a custom precision system, our 3x8x3mm deep groove bearing delivers the consistent performance critical for high-precision industrial scenarios.
This high precision ball bearing for CNC excels in applications requiring tight radial runout control and high rotational speeds—common in CNC spindle assemblies, linear guides, and miniature precision mechanisms. Its single-row design and radial load capacity make it ideal for light to moderate load environments where dimensional accuracy directly impacts part quality. In semiconductor manufacturing equipment and medical device components, where even micrometer deviations matter, the 693's P4 precision grade ensures reliable operation under continuous duty cycles.
The 693 bearing's Gcr15 steel construction provides superior hardness and wear resistance, essential for maintaining precision over extended service life. Its P4 precision rating ensures minimal radial and axial play, reducing vibration in high-speed applications—a critical factor in achieving the surface finish requirements of aerospace components and medical devices. Available seal options (Zz, 2RS, Open) allow customization for different operating environments: Zz shields offer basic protection in clean conditions, while 2RS seals provide enhanced contamination resistance for industrial automation settings. The bearing's 3x8x3mm dimensions make it suitable for compact designs without compromising load capacity or speed performance.
Choosing an uncertified 3x8x3mm deep groove bearing may save money upfront, but the long-term costs are substantial. Counterfeit bearings often lack proper heat treatment, leading to premature fatigue and catastrophic failure. A single spindle breakdown can cost thousands in lost production, not counting repair parts and labor. Our bearings come with complete certification documentation, ensuring compliance with ISO 9001 and DIN standards. By investing in genuine P4 grade ball bearings, you reduce the risk of unplanned downtime and extend the service intervals of your CNC equipment, ultimately lowering total operational costs.
Our reputation is built on four pillars of reliability: official brand authorization with 100% authentic product guarantee, standardized precision testing procedures for full-process quality traceability, a senior application engineering team with rich on-site project experience, and professional shockproof & dustproof logistics solutions to preserve bearing accuracy. With clients across 45+ countries, including leading CNC machine tool manufacturers and semiconductor companies, we've demonstrated consistent delivery of high-precision bearing application solutions. Every bearing undergoes incoming material verification and finished product inspection, ensuring you receive components that meet the exacting standards of advanced manufacturing.
Don't let equipment downtime affect your production schedule. Our in-stock 693 Gcr15 Steel P4 Precision bearings are ready for immediate dispatch. Whether you need a single replacement or bulk order, we streamline the procurement process to get your CNC machines back to optimal performance quickly.
Q: Are these genuine SKF bearings?
A: Yes, we are an officially authorized SKF distributor. Every bearing comes with full authorization certificates and traceability documentation to verify authenticity.
Q: How do I confirm if the 693 bearing fits my CNC machine?
A: Our application engineering team can verify compatibility with your equipment. Provide your machine model or spindle specifications, and we'll confirm the correct bearing dimensions and precision grade.
Q: What is your warranty policy?
A: We stand behind the quality of all products. Any manufacturing defects will be replaced unconditionally according to SKF's official warranty terms.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, making us ideal for emergency repair situations where small quantities are needed quickly.
Q: How long does shipping take?
A: In-stock bearings are shipped within 1 business day. Delivery times vary by location, typically 3-7 business days via express courier to major industrial hubs.
Q: How can I verify the bearing's precision grade upon receipt?
A: Each bearing includes a certificate of precision testing. Our quality inspection report details dimensional measurements, vibration levels, and clearance values, all traceable to ISO standards.
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