Nn3024k Bearing

1.Product Introduction: NN3024K model with double rows, inner diameter 120mm (1:12 taper), adjustable clearance, suitable for precision spindles.
2.Structure Type: Outer ring with double ribs, inner ring with 1:12 taper, double-row rollers + cage, open type.
3.Dimension Range: Inner diameter: 120mm (1:12 taper), Outer diameter: 180mm, Width: 46mm
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, precision milling machine spindles, high-speed precision motors
7.Key Inspection Items: Inner ring taper accuracy, radial clearance (adjustable to 0.005-0.02mm), dimensional accuracy

Product Description

NN3024K Bearing Spherical Roller – Engineered for Extreme Heavy Loads & 150°C Operations

When your machinery faces relentless heavy loads, extreme temperatures, or harsh environments, the nn3024k bearing delivers unmatched reliability. Designed with precision-ground rollers and high-purity steel, this double-row bearing combines P4-level accuracy with shock resistance to minimize downtime in demanding sectors like mining, wind energy, and steel production.

Technical Specifications

Parameter Value
Inner Diameter (ID) 120mm (1:12 taper)
Outer Diameter (OD) & Width 180mm outer diameter, 46mm width
Material & Accuracy GCr15/GCr15SiMn bearing steel; P4 accuracy class (P2 available)
Max Speed & Temperature 3,800 RPM at 150°C continuous operation

Key Advantages

  • Precision Performance: Engineered to ISO P4 standards for reduced vibration in CNC spindles and high-speed motor bearing setups.
  • Extreme Temperature Resilience: Operates continuously at 150°C using GCr15SiMn heat-treated bearing steel.
  • Heavy Load Mastery: Handles radial loads up to 300MPa, ideal for metallurgical rolling mills and port cranes.

Industry-Proven Applications

  • Wind Turbine Gearboxes: DNV-GL certified coatings protect nn3024k bearing units against offshore salt spray corrosion.
  • Mining Conveyor Systems: Triple-labyrinth seals block abrasive particles to protect internal roller raceways.
  • Steel Mill Rollers: High-purity steel maintains dimensional stability under 150°C heat, reducing unplanned downtime.

Quality & Logistics

Every bearing undergoes ultrasonic impurity testing, CMM taper validation (±0.002mm), and 200,000+ hour lifespan load simulations. Standard units ship in 48 hours, while custom roller bearing designs deliver in 15-20 days.

FAQs

Q: Can the nn3024k bearing withstand sandstorms in desert mines?
A: Yes! Our specialized pre-greased bearing versions provide long-term dust resistance.

Q: Do you offer IoT-enabled roller bearing options for predictive maintenance?
A: Absolutely. We embed sensors to monitor real-time bearing load and temperature data.

Q: How do I adjust radial clearance for this nn3024k model on CNC spindles?
A: The 1:12 tapered inner ring allows precise clearance tuning (0.005–0.02mm) during installation.

Contact Us

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