Spindle Bearings

1.Product Introduction: Designed specifically for machine tool spindles, high precision and rigidity, suitable for high-speed precision rotation.
2.Structure Type: Double-row/single-row, separable inner ring (taper option available), precision rollers + cage, equipped with high-speed dust caps.
3.Dimension Range: Inner diameter: 20-500mm, Outer diameter: 47-800mm, Width: 14-200mm
4.Material: Inner ring/Outer ring/Rollers: GCr15/GCr15SiMn/20Cr2Ni4A; Cage: Stamped steel/brass
5.Accuracy: Class P4, Class P2 for ultra-precision models
6.Application Fields: CNC lathe spindles, milling machine spindles, machining center spindles, grinding machine spindles
7.Key Inspection Items: Radial runout (≤0.002mm), limit speed (≥10000r/min), operating noise (≤45dB)

Product Description

High-Temperature & Heavy-Load Spindle Bearings for Extreme Industrial Demands

When your machinery operates under extreme loads, speeds, or temperatures, spindle bearings become the backbone of your productivity. At LUOYANG INNO BEARING CO., LTD, we engineer bearings that thrive where others fail—whether in high-temperature furnace environments or under 450kN radial loads. With 30+ years of expertise, we deliver roller bearing solutions that reduce downtime by 40% and extend service lifecycles in harsh industrial settings.

Technical Specifications

Parameter Specification
Dimensions ID 20–500mm / OD 47–800mm (Custom up to φ5000mm)
Precision Grades P4 standard, P2 available for CNC spindle bearing units
Load Capacity Radial up to 450kN / Axial up to 220kN
Material & Hardness GCr15 alloy steel (60–64 HRC) or impact-resistant 20Cr2Ni4A rollers

Key Advantages

  • Unmatched Durability: Precision heat-treated alloy steel ensures high wear resistance for heavy-duty bearings.
  • High-Speed Precision: P4/P5 standards with radial runout ≤0.002mm for CNC and grinding machine spindles.
  • Agile Production: Non-standard spindle bearings produced in 15–20 days with 48-hour global dispatch for stock models.

Solutions for Critical Industries

  • Metallurgical Rolling Mills: Anti-deformation cages withstand continuous 150°C+ heat, stabilizing bearing operations.
  • Mining Crushers: Impact-resistant 20Cr2Ni4A rollers endure abrasive conditions under 500-ton loads.
  • Port Cranes: Anti-corrosion coatings and IoT-enabled roller bearing vibration monitoring prevent marine environment failures.

Quality Assurance & Lifetime Support

Every spindle bearing undergoes material spectrometry, laser roundness checks (≤0.5μm), and 100% noise/vibration testing. We provide on-site installation guidance, 3D CAD integration, and IoT predictive bearing maintenance.

FAQs

Q: Can your products handle 10,000 RPM+ in CNC machine spindles?
A: Yes—our P2-grade ultra-precision spindle bearing models achieve ≤0.001mm runout at 12,000 RPM.

Q: How do you prevent lubricant failure in high-temperature bearing environments?
A: We recommend synthetic grease with 150°C thermal stability and optimize re-lubrication cycles for roller bearing assemblies.

Q: What if I need bearings for obsolete machinery?
A: Share samples or drawings—we'll reverse-engineer custom spindle bearings within 72 hours.

Contact Us

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Contact our engineers today to receive free load/temperature analysis, 3D simulation reports, or a custom quote within 6 hours.

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