Double Row Cylindrical Roller Bearing NN3030 K/SP W33 60-64 HRC for Large Machinery

Product Specifications

Application Industries

Reduce Downtime with Reliable Double Row Cylindrical Roller Bearing NN3030 K/SP W33

Industrial operations face critical challenges when equipment bearings fail prematurely—unplanned downtime disrupts production schedules, and sourcing replacement parts from multiple suppliers delays recovery. For large machinery operators, the struggle to find high-hardness bearings that meet precise specifications often leads to extended maintenance periods and increased operational costs.

High Hardness Bearings for Heavy-Duty Performance

Our NN3030 K/SP W33 Double Row Cylindrical Roller Bearing addresses these pain points with its 60-64 HRC hardness, ensuring durability in high-load applications. As an official authorized distributor of SKF & NTN, we maintain sufficient hot-selling stock to support quick delivery, eliminating the long lead times associated with direct manufacturer orders. This bearing is engineered for large machinery, providing stable performance in gearboxes, motors, and industrial fans where reliability is non-negotiable.

Optimized for Demanding Operating Conditions

Designed for medium and large outer dimensions (120-190mm), this W33 Cylindrical Roller Bearing excels in environments with heavy axial loads and moderate radial forces. Its separated structure allows for easy installation and maintenance, while the brass or steel cage options ensure stability at varying speeds. Whether operating in high-temperature industrial settings or dusty mining environments, the bearing’s robust construction minimizes wear and extends service life, making it a critical component for continuous production.

Key Technical Features That Matter

The bearing’s 60-64 HRC hardness rating directly contributes to its resistance to surface fatigue, a common cause of premature failure in heavy machinery. Clearance options (C0-C5) allow customization to specific operating conditions—tighter clearances (C2) for precision applications or larger clearances (C4-C5) for thermal expansion in high-temperature environments. Vibration grades Z1V1 to Z3V3 ensure smooth operation, reducing noise and energy consumption. The combination of these features results in a bearing that delivers consistent performance under the most demanding conditions.

Why Genuine Bearings Lower Total Cost of Ownership

Choosing authentic High Hardness Cylindrical Roller Bearings over counterfeit alternatives reduces long-term costs significantly. Counterfeit bearings often fail within months, leading to repeated replacements, unplanned downtime, and potential damage to adjacent components. In contrast, our bearings adhere to ISO 9001 quality control standards, ensuring each unit meets strict performance criteria. The initial investment in genuine bearings is offset by extended service intervals, reduced maintenance requirements, and fewer production disruptions—ultimately lowering your total cost of ownership.

Our Commitment to Reliability

Packaging & Shipping

• Secure carton pallet packaging to prevent damage during transit
• 现货 available for delivery within 3-7 working days
• Flexible shipping options including DHL, FedEx, UPS, air, and sea freight
• Real-time logistics tracking provided for all orders
• Minimum order quantity of 1 piece, supporting emergency repairs and small-batch purchases

Get Your NN3030 K/SP W33 Bearing Today

Don’t let bearing issues halt your production. Send us your bearing designation, application details, and quantity to receive a prompt quote. With our ready stock and efficient delivery, you can minimize downtime and get your machinery back to work quickly.

Frequently Asked Questions