Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Machinery | CNC Machine Tools |
Looking for a Reliable Double Row Cylindrical Roller Bearing NN3012-K-TN-Sp W33 C3? Here’s What Matters
CNC machine operators know the frustration of unexpected downtime caused by bearing failure. When precision matters, choosing the wrong bearing with mismatched clearance or inadequate vibration control can lead to poor surface finishes and costly production delays. Sourcing high-precision roller bearings that meet exact specifications often means navigating multiple suppliers, each with limited inventory and varying quality standards.
Built for Reliable, Long-Term Performance in CNC Applications
The Double Row Cylindrical Roller Bearing NN3012-K-TN-Sp W33 C3 addresses these challenges with its optimized design for low noise CNC machine tools. As a supplier with ISO 9001 certified检验流程, we ensure each bearing meets strict dimensional and hardness requirements. Our extensive inventory covers a wide range of SKF cylindrical bearings and other international brand models, supporting same-day shipping for spot goods to minimize production interruptions.
Where This Bearing Performs Best
This high precision roller bearing excels in high-speed CNC spindle applications where radial load capacity and rotational accuracy are critical. Operating within typical machine tool temperature ranges, its C3 clearance provides optimal performance under thermal expansion conditions, while the separated inner and outer rings allow for easy mounting and dismounting during maintenance. The W33 lubrication groove ensures consistent grease distribution, reducing friction and extending service life in continuous operation environments.
Engineering Details That Matter
The bearing’s 60-64 HRC hardness rating ensures excellent wear resistance, critical for withstanding the continuous stress of CNC machining operations. Its brass or steel cage options provide distinct performance advantages: brass cages offer superior heat dissipation for high-speed applications, while steel cages provide enhanced durability in heavy-load scenarios. The Z1V1 to Z3V3 vibration classes allow customization based on noise sensitivity requirements, with higher V-class ratings delivering smoother operation for precision grinding and finishing tasks. The double row design increases radial load capacity by up to 40% compared to single row alternatives, making it suitable for heavy-duty machining centers.
Why Bearing Selection Affects Total Cost
Choosing the right double row bearing W33 C3 directly impacts your total cost of ownership. A bearing with improper clearance can cause premature failure, leading to unplanned downtime, replacement parts, and lost production. Our C3 clearance cylindrical roller bearings are engineered to maintain precision under thermal expansion, reducing the risk of seizure in high-temperature CNC operations. By following ISO 281 bearing life calculation principles, we help customers select bearings that match their specific load and speed requirements, avoiding the hidden costs of over-specification or underperformance.
Quality You Can Rely On
Our production and检验流程 adhere to ISO 9001 standards, with comprehensive原材料 testing and成品尺寸、硬度及表面处理检测. Each bearing comes with a manufacturer’s warranty covering manufacturing defects. We maintain a large inventory of conventional models, supporting quick delivery for urgent replacement needs. As a supplier covering both自有品牌 and international brands, we can source or produce bearings according to your exact specifications, ensuring compatibility with existing equipment.
Packaging & Shipping
- Standard packaging: Carton pallet for secure transportation
- Stock availability: Spot goods available for same-day shipping
- Logistics options: Flexible delivery via courier, air, or sea freight
- Minimum order quantity: Low MOQ supported for small and large volume requirements
Request a Quote for This NN3012 Bearing for CNC Machine Tools
Whether you need a single replacement or bulk order of the Double Row Cylindrical Roller Bearing NN3012-K-TN-Sp W33 C3, provide your required quantity and destination details for a prompt quote. Our technical team can assist with specification verification to ensure compatibility with your CNC machine tools. With our global delivery network, we can arrange timely shipping to keep your production on schedule.
Frequently Asked Questions
Q: Do you support procurement of other bearing brands or models?
A: Yes, we provide comprehensive procurement services covering both international brands (including SKF, NSK, NTN, Koyo, NACHI, IKO, FAG, Timken) and domestic quality brands. We can source bearings according to your specified brand and model requirements.
Q: How can I confirm if this bearing is suitable for my CNC machine?
A: Provide your machine’s make, model, and the original bearing part number if available. Our technical team can cross-reference dimensions and specifications to verify compatibility with your equipment.
Q: What is your warranty policy for these bearings?
A: We provide a manufacturer’s warranty covering manufacturing defects. The specific warranty period and terms will be detailed in your purchase contract, with options for returns or replacements in case of verified quality issues.
Q: What is the minimum order quantity for this bearing?
A: We support low minimum order quantities, including single-unit purchases for emergency replacements. Contact us with your specific requirements for volume pricing options.
Q: How quickly can you ship this bearing and what shipping methods are available?
A: For in-stock items, we offer same-day shipping. Delivery options include express courier (3-5 days), air freight (7-10 days), and sea freight (30-45 days) depending on your location and urgency.
Q: Do you offer OEM or ODM customization for bearings?
A: Yes, we support custom bearing production according to customer-provided drawings, specifications, or samples. Contact us with your detailed requirements for a feasibility assessment and quotation.
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