Tapered Roller Bearings LM11749/10 40x68x19mm P4 Precision for CNC Machine Tools

Product Specifications

Application Industries

Eliminate CNC Downtime with LM11749/10 Tapered Roller Bearings P4 Precision

CNC machine operators know the frustration of unexpected spindle failures—hours of production lost, missed deadlines, and costly repairs. Many face the challenge of sourcing genuine P4 precision bearings quickly, especially when dealing with multiple suppliers who can’t guarantee consistent quality or timely delivery. Even small discrepancies in bearing accuracy can compromise tool positioning and surface finish, turning a minor issue into a major production setback.

LM11749/10 Bearings: In Stock and Engineered for CNC Performance

Our LM11749/10 Tapered Roller Bearings with 40x68x19mm dimensions and P4 precision rating address these challenges directly. As an officially authorized distributor, we maintain sufficient ready stock of P4/P2 precision grade bearings for rapid delivery, ensuring your CNC machine spends less time idle and more time producing. Each bearing undergoes standardized precision testing before shipment, with full-process quality traceability that meets ISO 9001 and DIN standards—critical for maintaining the tight tolerances required in CNC applications.

Optimal Performance in High-Precision Machining Environments

This Tapered Roller Bearing excels in CNC machine tool spindles and feed mechanisms, where it handles both radial and axial loads with minimal deflection. The separated design allows for easy mounting and adjustment, while the bearing steel construction ensures durability under continuous operation. With P4 precision, it delivers the low runout and high rotational accuracy needed for precision milling, turning, and grinding operations, where even 0.001mm deviation can affect part quality.

Key Technical Features That Matter for CNC Reliability

The 40x68x19mm dimensions of the LM11749/10 bearing are engineered to fit standard CNC spindle configurations, providing a direct replacement for worn components. Its P4 precision rating ensures tight control over geometric tolerances, reducing vibration and noise during high-speed rotation. The ability to use either grease or oil lubrication offers flexibility for different operating speeds and temperature ranges, while the Z1V1 to Z3V3 vibration classes allow customization based on application sensitivity. For CNC machines, these specifications translate to longer bearing life, improved surface finish, and reduced maintenance intervals.

Why Cutting Corners on Bearings Costs More in the Long Run

Choosing non-genuine or lower-precision bearings may save upfront costs, but the hidden expenses add up quickly. Counterfeit bearings often fail prematurely due to substandard materials and manufacturing processes, leading to unplanned downtime, damaged spindles, and scrapped parts. In contrast, our LM11749/10 Bearings come with complete certification documentation, ensuring compliance with global quality standards. The investment in genuine P4 precision bearings reduces total cost of ownership by minimizing replacement frequency and maximizing machine uptime—essential for meeting production targets in competitive manufacturing environments.

Trusted by 800+ Industrial Customers Worldwide

Packaging & Shipping

• Carton and pallet packaging with shockproof and dustproof protection to preserve bearing accuracy during transit
• Priority processing available for urgent maintenance needs
• Global logistics options including DHL, FedEx, UPS, air, and sea freight
• Real-time full logistics tracking for shipment visibility
• 1 piece minimum order quantity, supporting both emergency repairs and small-batch procurement

Get Your LM11749/10 Bearing Shipped Today

Every hour your CNC machine is down costs money—don’t wait for a bearing failure to disrupt production. Our in-stock LM11749/10 Tapered Roller Bearings are ready for immediate dispatch, with technical support available to confirm compatibility with your equipment. Whether you need a single replacement or a stock of spares, we streamline the procurement process to get you back to full production faster.

Frequently Asked Questions