Inch Series Double Row Tapered Roller Bearings

1.Product Introduction: Inch - sized, double - row structure, suitable for imported heavy - load equipment.
2.Structure Type: The inner ring has double - tapered raceways, the outer ring is fixed, with double - row rollers + cage, separated by a spacer ring.
3.Size Range: Inner diameter 1 - 30 inches, outer diameter 2 - 50 inches, width 1 - 8 inches.
4.Material: Inner ring/Outer ring/Rollers: GCr15/GCr15SiMn/20Cr2Ni4A, cage: stamped steel / brass.
5.Precision: P0/P6 level (corresponding to ABEC - 1/ABEC - 3).
6.Application Fields: Imported heavy - trucks, inch - sized rolling mills, European and American port cranes.
7.Key Inspection Items: Inch - sized dimensional accuracy, consistency of double - row rollers, load - bearing capacity.

Product Description

Inch Series Double Row Tapered Roller Bearings | Built for Extreme Load & High-Temperature Industrial Applications

When your machinery operates under extreme stress—whether from 300-ton loads in steel mills or relentless shock impacts in port cranes—Inch Series Double Row Tapered Roller Bearings deliver unmatched durability. Engineered for metallurgical equipment, port machinery, and heavy-duty OEM systems, these bearings provide 200～350°C heat resistance and 30%+ higher load capacity than standard designs. Designed with double-row tapered rollers and optimized raceways, they distribute heavy radial and axial loads evenly, reducing wear and extending equipment lifespan.

Technical Specifications

Parameter Specification
Dimensions 1" – 30" bore (up to 50" OD custom)
Load Capacity Cr up to 1,500 kN • Cor up to 2,200 kN
Temperature -50°C to +350°C
Precision ABEC-1 (P0) to ABEC-7 (P4)

Why Choose Our Bearings?

  • 30+ Years of Manufacturing: In-house production of rings, rollers, and cages ensures IT5 tolerance consistency.
  • R&D-Backed Customization: Modify bore diameters, roller angles, or sealing systems within 72 hours.
  • Proven Lifespan: 15,000-hour average durability in 24/7 mining conveyors tested to ISO 281 standards.

Industry-Proven Applications

  • Metallurgical Equipment: Advanced heat treatment maintains bearing stability in 350°C rolling mills.
  • Port Machinery: Reinforced cages and tapered rollers absorb 25G shock loads in ship loaders and stackers.
  • Custom Retrofits: We deliver tailored split-design bearing solutions in 15 days for legacy equipment.

Quality & Support

Our Inch Series Double Row Tapered Roller Bearings undergo spectrographic material testing, 3-stage grinding, and ISO 15242 vibration/fatigue testing. We provide 3D CAD models within 24 hours and on-site technical audits.

FAQs

Q: How do these bearings handle 350°C environments?
A: Special heat-treated steel and graphite lubrication maintain bearing stability at extreme temperatures.

Q: Can you customize dimensions for unique machinery?
A: Yes—we’ve delivered φ5000mm bearings with hybrid cages in 15 days.

Q: What ensures wear resistance under heavy impacts?
A: Ultra-clean SUJ2 steel and precision grinding of the rollers reduce microfractures.

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