Four Row Tapered Roller Bearing

1.Product Introduction: Its load - bearing capacity is 3.5 - 4 times that of single - row bearings, suitable for extremely heavy loads.
2.Structure Type: The inner ring / outer ring is integrally forged, with four - row rollers + cage, multiple spacer rings, and a metal seal.
3.Size Range: Inner diameter 100 - 2000mm, outer diameter 200 - 3000mm, width 80 - 500mm.
4.Material: Inner ring/Outer ring/Rollers: GCr15/GCr15SiMn/20Cr2Ni4A, cage: stamped steel / brass.
5.Precision: P0/P6 level.
6.Application Fields: Large - scale rolling mill roll necks, port super - heavy cranes, mining machinery spindles.
7.Key Inspection Items: Forging flaw detection, consistency of four - row rollers, radial load - bearing capacity (≥10000kN).

Product Description

High-Capacity Four Row Tapered Roller Bearings for Extreme Industrial Demands

When your machinery faces relentless radial and axial loads, Four Row Tapered Roller Bearings deliver unmatched stability. Designed with four rows of precision-angled rollers, these bearings distribute stress evenly, offering 3.5–4x the load capacity of single-row alternatives. At LUOYANG INNO, we combine three decades of expertise with advanced heat treatment and grinding technologies to create solutions that thrive in 350°C environments, from steel mills to mining crushers.

Key Features

  • Precision: P0/P6/P5/P4-level accuracy ensures perfect alignment in rolling mills and port cranes.
  • Extreme Loads: Dynamic loads up to 12,000 kN handled by reinforced ribs and ultra-clean GCr15 steel.
  • Agile Production: Custom φ3000mm+ bearings delivered in 15–20 days via modular manufacturing.
  • Lifecycle Support: Full service from IoT-enabled wear monitoring to end-of-life recycling.

Technical Specifications

Parameter Details
Inner Diameter 100–5000 mm (customizable)
Material GCr15/GCr15SiMn steel with carburizing
Temperature -50°C to +350°C
Sealing Triple-lip metal seals

Industry-Proven Reliability

  • Steel Rolling Mills: Four Row Tapered Roller Bearings withstand 150–350°C thermal shocks in continuous casting lines.
  • Mining Crushers: Dust-resistant bearing designs extend service life in abrasive conditions.
  • Port Cranes: High-precision rotation under 10,000 kN dynamic loads.

Quality Assurance

Every bearing undergoes 12 validation stages, including raw material spectrometry, ultrasonic forging flaw detection, and 10,000-hour simulated load endurance trials to ensure a 99.9% defect-free rate.

FAQs

Q: Can you customize bearings for φ2500mm rolling mill backup rolls?
A: Absolutely. Our mega-size Four Row Tapered Roller Bearing series supports up to φ5000mm with P4 precision.

Q: How do you prevent premature wear in mining equipment?
A: Multi-labyrinth seals and hardened roller surfaces combat abrasive particles effectively.

Q: Do you offer installation support?
A: Yes. Our bearing engineers provide on-site clearance mapping and alignment checks.

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