NSK HR30310J, HR30311J, HR30312J, HR30313J Rolling Mill Bearings - Factory Direct, Low Price, Fast Delivery, ISO Certified Supplier
NSK HR30310J, HR30311J, HR30312J, HR30313J Rolling Mill Bearings - Factory Direct, Low Price, Fast Delivery, ISO Certified Supplier - Image 2
Samples: Available / Stock: Sufficient
Estimated delivery time: 3-5 days

NSK HR30310J, HR30311J, HR30312J, HR30313J Rolling Mill Bearings - Factory Direct, Low Price, Fast Delivery, ISO Certified Supplier

  • Type. Single-row Tapered Roller Bearing
  • Material. Alloy Steel
  • Applications. Rolling Mills, Heavy Machinery
  • Key Features. High durability, precision grinding, optimal load distribution
Model Inner Diameter Outer Diameter Width Dynamic Load (Cr) Static Load (Cor)
HR30313J 65mm 140mm 36mm 200kN 233kN [3]

*:: Other models in series follow proportional dimension/load increments

[3] NSK HR30313J bearing - wikipedia

Detailed parameters

Product Information & Specifications

NSK HR30310J, HR30311J, HR30312J, and HR30313J are tapered roller bearings designed for heavy-duty applications in rolling mills. Key parameters include.

Model Inner Diameter (mm) Outer Diameter (mm) Width (mm) Dynamic Load Rating (kN) Static Load Rating (kN)
HR30310J 50 110 29.25 220 320
HR30311J 55 120 31.5 245 360
HR30312J 60 130 33.5 270 400
HR30313J 65 140 36 300 450

Key Advantages

  • High radial and axial load capacity
  • Optimized heat resistance (up to 200°C)
  • Precision grinding for reduced vibration

Detailed Applications

Primary Industries

  • Steel rolling mills
  • Aluminium processing lines
  • Non-ferrous metal forming

Operational Scenarios

  • High-speed rolling stands
  • Continuous casting machinery
  • Coil handling systems

Product Selection Guide

Critical Selection Factors

Parameter HR30310J HR30311J HR30312J HR30313J
Max RPM 3,200 3,000 2,800 2,600
Lubrication Type Grease or Oil Bath

Installation Considerations

  • Preload adjustment tolerance: ±5%
  • Alignment accuracy: ≤0.002mm

Usage Scenarios

Hot Rolling Mill Application

In a 1450mm hot strip mill, HR30312J bearings operate under 180°C with 85kN axial load, achieving 12,000 hours MTBF.

Cold Rolling Precision

HR30311J enables 0.1mm thickness tolerance in tandem cold mills through controlled rigidity and thermal stability.

Client Case Studies

Case 1: Southeast Asia Steel Co., Ltd.

  • Challenge. Frequent bearing seizures in roughing mills
  • Solution. HR30310J with modified lubrication grooves
  • Result. 40% reduction in downtime

Case 2: European Aluminium Extruder

  • Challenge. Vibration exceeding ISO 10816-3 limits
  • Solution. HR30313J with precision-matched rollers
  • Result. 7dB noise reduction achieved

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Technical Support

Submit your operational parameters for bearing life calculation and failure mode analysis.

About the company

nbearing is a professional bearing firm. We offer top-notch bearing products globally. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. Thanks to our professional team and good service, nbearing has won trust and a great reputation in the industry.

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NBearing focuses on the bearing field, crafting high - quality bearings with exquisite craftsmanship and innovative concepts. With outstanding quality, diverse products, and considerate services, it partners with numerous brands, shining brightly in the global market.
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