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Technical needs assessment
Ensure precise spindle performance and minimize CNC machine downtime with our Cylindrical Roller Bearing Nu305e, engineered to deliver P4-level precision in critical machining operations. This 25x52x15mm separated radial bearing maintains tight tolerance control even under high radial loads, making it ideal for high-speed spindle applications where accuracy directly impacts part quality.
| Parameter | Details |
|---|---|
| Model NO. | Nu305e |
| Product Name | Cylindrical Roller Bearing |
| Structure | Cylindrical |
| Bore Diameter (d) | 25 mm |
| Outside Diameter (D) | 52 mm |
| Width (B) | 15 mm |
| Material | Bearing Steel |
| Precision Rating | P0, P6, P5, P4, P2 |
| Load Direction | Radial Bearing |
| Separated | Separated |
| Spherical | Non-Aligning Bearings |
| Seals Type | Open |
| Lubricate | Oil, Grease, Dry |
| Number of Row | Single Row |
| Trademark | SKF/NTN/NSK/NMB/Koyo/NACHI/Timken |
| HS Code | 8482500090 |
| Industry | Typical Equipment |
|---|---|
| Manufacturing | CNC Machine Tools, Spindles, Gearboxes |
| Industrial Automation | Robotic Arms, Precision Conveyors |
| Semiconductor Manufacturing | Wafer Processing Equipment |
| Medical Equipment | High-Precision Diagnostic Machinery |
CNC machine operators know the frustration of unexpected spindle failures—hours of production lost, missed deadlines, and costly repairs often trace back to substandard bearings. When precision parts demand micron-level accuracy, even minor bearing defects can compromise workpiece quality. Sourcing reliable high-precision bearings often means juggling multiple suppliers, each with different lead times and quality standards, further delaying maintenance.
Our Cylindrical Roller Bearing Nu305e eliminates these headaches with 100% authentic P4 precision grade components ready for same-day dispatch. As an officially authorized distributor, we maintain sufficient inventory of P4/P2 precision bearings to ensure rapid delivery, critical for minimizing unplanned downtime. The 25x52x15mm dimensions make this separated cylindrical roller bearing ideal for CNC machine tool spindles, where radial load capacity and precise alignment are non-negotiable.
This Nu305e bearing thrives in the demanding environment of CNC machinery, where it handles radial loads while maintaining tight rotational accuracy. The separated design allows for easy mounting and dismounting during maintenance, a key advantage in time-sensitive repair scenarios. Its open seal type ensures optimal lubrication flow in high-speed applications, reducing friction and heat buildup—critical factors in extending spindle life and maintaining consistent machining precision.
The P4 precision rating of this cylindrical roller bearing guarantees minimal runout and axial clearance, essential for achieving the tight tolerances required in precision machining. Crafted from high-grade bearing steel, it delivers exceptional durability under continuous operation, while the single-row configuration optimizes load distribution for stable performance. The 25mm bore diameter and 52mm outer diameter balance compact design with load-carrying capability, making it a versatile solution for various CNC spindle models.
Counterfeit bearings may save upfront costs but often fail prematurely, leading to spindle damage, scraped workpieces, and extended production halts. Our Nu305e bearings come with complete certification documentation, ensuring compliance with ISO 9001 and DIN standards. Every unit undergoes standardized precision testing before shipment, providing traceability from material verification to delivery. The true cost of inferior bearings includes not just replacement parts, but lost production revenue and damaged customer relationships—risks no manufacturer can afford.
With over 800 clients across 45 countries, our reputation is built on consistent quality and engineering expertise. Our senior application engineering team offers free bearing selection support, ensuring you get the right component for your specific CNC model and operating conditions. We provide shockproof and dustproof logistics solutions to preserve bearing accuracy during transit, and each order includes a dedicated point of contact for technical consultation and after-sales support. Our one-stop procurement process simplifies sourcing, combining cross-brand model matching and unified quality control in a single workflow.
Every hour your CNC machine sits idle costs money—don’t let bearing issues delay your production schedule. Our Nu305e P4 precision cylindrical roller bearing is ready to ship, backed by professional engineering support and guaranteed authenticity. Whether you need a single replacement or a bulk order, we streamline the procurement process to get your equipment back online faster.
Q: Are these genuine brand bearings?
A: Yes, we are an officially authorized distributor for SKF, NTN, NSK, NMB, Koyo, NACHI, and Timken. Every bearing comes with complete authorization certificates and traceability documentation.
Q: How do I confirm if the Nu305e fits my CNC machine?
A: Provide your machine model or spindle specifications, and our application engineering team will verify compatibility and provide technical guidance at no additional cost.
Q: What is your warranty policy?
A: All bearings come with the original manufacturer warranty. We provide unconditional replacement for any manufacturing defects discovered within the warranty period.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, specifically to support emergency maintenance requirements and small-batch procurement.
Q: How quickly can you ship the Nu305e bearing?
A: This model is in stock and typically ships within 24 hours of order confirmation, with delivery in 3-7 business days depending on your location.
Q: How can I verify the authenticity of the bearing?
A: Each bearing includes original packaging with brand-specific anti-counterfeit labels, laser-etched part numbers, and certification documents. We can also provide manufacturer verification support upon request.
Ready to order or need a quote?
Send your bearing designation, CNC machine model, and quantity — our team will provide a technical confirmation and quotation within 24 hours.
Our 5-step process ensures every order is engineered, validated, and supported for optimal performance.
Technical needs assessment
Custom specifications
Free samples for $50k+
Pre-shipment inspection
On-site & predictive
Our certified engineers respond within 24 hours with detailed technical specifications, pricing, and lead time information.