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ZARF50140LTN Combined Precision Bearing


  • Combined Layout: Integrates a radial needle roller bearing with a double-direction axial cylindrical roller assembly to provide maximum rigidity in all directions.
  • Mounting Configuration: Features an extended, pre-drilled outer ring for direct bolt-mounting to the machine tool housing, simplifying installation.
  • Preload Rigidity: Internal components are custom-tightened at the factory to deliver high stiffness and eliminate axial backlash during fast reversing cycles.

Deep Application & Technical Narrative:The ZARF50140LTN is a high-precision combined bearing designed specifically for supporting the ball screw drives of modern CNC machine tools, automated linear actuators, and precision positioning tables. To achieve micron-level accuracy during high-speed machining, a ball screw must be supported by a bearing assembly that offers exceptional radial and axial rigidity, ultra-low frictional drag, and virtually zero axial play. The ZARF50140LTN achieves this through a smart combined layout: a radial needle roller bearing layer handles radial loads, while dual-direction axial cylindrical roller assemblies manage intense shifting thrust forces. Within our specialized workshop, we handle these high-precision components with extreme care. Every ZARF50140LTN undergoes a strict manual rotational smoothness check.

  • Customized B2B Supply & Packaging Solutions:Rounding out our full range of bearing types, we supply high-precision CNC components like the ZARF50140LTN. These are packaged in climate-controlled, anti-vibration casing to protect the micro-tolerances. We offer fully customized client-facing packaging designs and manage priority international air freight routing for urgent machine tool repair orders.

  • Targeted Technical Clarifications (FAQ):

    • Q: Does this model include integrated low-friction seals?A: Yes, the "LTN" designation specifies specialized low-friction lip seals that effectively retain the internal grease while ensuring smooth, low-drag rotation.

    • Q: What type of grease is pre-packed in the ZARF50140LTN?A: It is pre-lubricated with a high-stability, low-torque synthetic grease specifically formulated for the fast, repeating motions of precision machine tools.


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Linqing Xinshengdi Bearing Co., Ltd.