Shock Proof Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for CNC Machine Tools

Product Specifications

Application Industries

Minimize CNC Downtime with Shock Proof Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33

CNC machine operators know the frustration of unexpected spindle failures. A single bearing malfunction can halt production for days, delaying orders and eroding profit margins. Sourcing reliable replacement bearings often means coordinating with multiple suppliers, each with different lead times and quality standards that complicate maintenance scheduling.

Genuine Shockproof Cylindrical Roller Bearings for CNC Machine Tools

Our Shock Proof Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 is engineered to address these challenges. As an officially authorized distributor, we maintain sufficient ready stock of high-precision bearings to ensure rapid delivery for emergency repairs. Each unit undergoes standardized precision testing before shipment, guaranteeing performance consistency in critical CNC spindle applications.

Engineered for High-Precision CNC Operating Conditions

This Double Row Cylindrical Roller Bearing excels in the demanding environments of CNC machine tools, where it withstands radial loads and moderate axial forces at high rotational speeds. The shockproof design enhances durability against sudden load variations common in metalworking operations, while the separated inner and outer rings allow for easy installation and maintenance—critical factors in minimizing equipment downtime.

Key Technical Features for CNC Performance

The NNU4952 B-K/Sp W33 incorporates several engineering details that directly impact CNC machine performance. Its 60-64 HRC hardness ensures wear resistance during extended operation, while the brass or steel cage options provide stability under varying speed conditions. Clearance grades from C0 to C5 allow precise matching to specific spindle preload requirements, reducing vibration and improving machining accuracy. The Z1V1 to Z3V3 vibration levels further contribute to smoother operation, extending tool life and enhancing surface finish quality.

Why Authenticity Matters for CNC Bearings

Choosing genuine High Precision CNC Bearings over counterfeit alternatives delivers significant long-term value. Non-certified bearings often fail prematurely due to substandard materials and manufacturing processes, leading to unplanned downtime that costs far more than the initial savings. Our products come with complete certification documentation, ensuring compliance with ISO 9001 and DIN standards that govern precision bearing performance in industrial applications.

Why Global CNC Manufacturers Trust Our Bearings

Packaging & Shipping

• Carton pallet packaging with shockproof protection to maintain precision during transit
• Priority processing available for urgent CNC maintenance requirements
• Global logistics options including DHL, FedEx, UPS, air, and sea freight
• Real-time shipment tracking for full supply chain visibility
• Flexible order quantities starting from single units for emergency repairs

Get Your CNC Bearing Shipped Today

Don’t let bearing issues keep your CNC machines idle. Send us your NNU4952 B-K/Sp W33 order with application details, and our team will process your request within one working day. With our ready stock and streamlined logistics, you can minimize downtime and restore production quickly.

Frequently Asked Questions