Nn3020 Bearing

1.Product Introduction: NN3020 model with double rows, inner diameter 100mm, high radial rigidity, suitable for medium-sized precision spindles.
2.Structure Type: Outer ring with double ribs, separable inner ring (double-row raceway), double-row rollers + cage, open type.
3.Dimension Range: Inner diameter: 100mm, Outer diameter: 150mm, Width: 37mm
4.Material: Inner ring/Outer ring/Rollers: GCr15/GCr15SiMn/20Cr2Ni4A; Cage: Stamped steel/brass
5.Accuracy: Class P5, Class P4 for ultra-precision models
6.Application Fields: Medium-sized precision machine tool spindles, high-speed motors, precision reducers
7.Key Inspection Items: Radial clearance (0.015-0.04mm), parallelism of double-row rollers, operating noise (≤50dB)

Product Description

NN3020 Bearing High-Temperature Heavy-Load for Extreme Industrial Environments

When your machinery operates under intense heat, heavy loads, or corrosive conditions, the NN3020 bearing delivers unmatched durability and precision. Designed for industries like metallurgy, mining, and port machinery, this double-row cylindrical roller bearing combines a 100mm inner diameter with advanced heat-treated materials to withstand extreme operations and dynamic loads exceeding 300kN. Backed by 30+ years of engineering expertise, our bearings ensure 99.9% defect-free performance to reduce unplanned downtime.

NN3020 Bearing High-Temperature Heavy-Load for Extreme Industrial Environments

When your machinery operates under intense heat, heavy loads, or corrosive conditions, the NN3020 bearing delivers unmatched durability and precision. Designed for industries like metallurgy, mining, and port machinery, this double-row cylindrical roller bearing combines a 100mm inner diameter with advanced heat-treated materials to withstand extreme operations and dynamic loads exceeding 300kN. Backed by 30+ years of engineering expertise, our bearings ensure 99.9% defect-free performance to reduce unplanned downtime.

Industry-Proven Applications

  • Metallurgical Kilns: Resists thermal deformation in roller furnaces with bearings tested for rapid thermal fluctuations.
  • Mining Crushers: Handles 100–500t/hour crushing loads via triple-layered raceway hardening on internal roller surfaces.
  • Port Cranes: IP68-rated seals and saltwater-resistant coatings extend NN3020 bearing service life in coastal environments.

Quality & Logistics

Every bearing undergoes material XRF alloy testing, IT5-grade precision grinding, and 100% vibration analysis. We stock units for 48-hour emergency dispatch and offer IoT sensor integration for real-time roller bearing wear tracking.

FAQs

Q: Can the NN3020 bearing handle φ3000mm+ sizes for port machinery?
A: Yes! We specialize in oversized bearing customizations with a 15–20 day lead time.

Q: What certifications apply to this cylindrical roller bearing?
A: It complies with ISO 9001, CE, and ASTM standards, with GOST available upon request.

Q: How is the 99.9% defect-free rate achieved for NN3020 products?
A: Through XRF material checks, 100% vibration tests, and laser measurements for total bearing precision.

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