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518980 Large-Scale Tapered Roller Bearing
- Massive Load Management: Engineered to withstand extreme radial and axial force combinations in ultra-heavy applications.
- Crown-Profiled Rollers: Precision micro-geometry eliminates edge stress and ensures uniform load distribution.
- Advanced Metallurgy: High-purity steel matrix resists subsurface fatigue under continuous high pressure.
- Strict Quality Control: Every unit undergoes 100% dimensional, surface hardness, and ultrasonic integrity testing.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 549.275 mm |
| Outer Diameter (D) | 692.150 mm |
| Total Width (T) | 80.962 mm |
| Precision Standard | Industrial P0 / P6 |
Product Specifications
| Specification | Details |
| Item Type | Large Tapered Roller Bearing |
| Model Number | 518980 |
| Bearing Design | Single Row Imperial Tapered |
| Material | Premium Vacuum-Degassed Bearing Steel |
| Cage Material | Heavy-Duty Pin-Type or Steel Cage |
Product Introduction
The 518980 is a large-scale tapered roller bearing engineered to handle massive combined radial and thrust loads in heavy industrial machinery. Sized precisely at 549.275 x 692.15 x 80.962 mm (21.625 x 27.25 x 3.1875 inches), this heavy component is critical for steel rolling mills, large gear reducers, and heavy mining infrastructure. Produced inside our high-end heavy-bearing manufacturing facility, the 518980 undergoes specialized deep-case hardening and microscopic roller profiling to prevent edge stress concentrations. Our stringent QA standards ensure that every cup and cone assembly delivers unmatched structural durability and operational reliability under severe, continuous loads.
Applications
Steel and non-ferrous metal rolling mill equipment.
Heavy-duty mining rotary drives and crushers.
Large industrial gear reducers and marine winches.
Equivalent Models
518980/518910 (when ordered as cone/cup set)
Cross Reference
Timken: 518980 Series
FAQ
Q: Is this bearing manufactured to inch or metric standards?
A: It is designed based on standard imperial dimensional profiles (549.275mm / 21.625" bore), widely used in heavy industrial equipment worldwide.
Q: What surface treatments are available for extreme shock loads?
A: We offer specialized case-carburized treatment upon request to maximize core toughness and surface wear resistance.
OEM & Custom Service
Our engineering division provides full B2B support, including custom internal clearances, specialized anti-wear surface coatings, and bespoke heavy-machinery OEM supply programs.
Packing & Delivery
Treated with high-performance rust inhibitors, hermetically sealed in heavy-gauge VCI polymer, and secured in custom-engineered wooden export crates for maritime shipping.
