Factory Direct 51224/51126/51226/51128/51228 Thrust Ball Bearings
Basic Info
| Inner Diameter | 120 mm |
| Outer Diameter | 170 mm |
| Thickness | 39 mm |
| Type | Thrust Bearing |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4, P2 |
Introduction
High-precision thrust bearing made of bearing steel, designed for axial load applications. Features non-aligning, separated single-row structure. Complies with ISO9001:2008, available in stock with OEM/ODM service.
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Warranty 1 year
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Description
Key Specifications & Advantages
| Description | Core Value |
|---|---|
| Model Range | 51224 / 51126 / 51226 / 51128 / 51228 — standardized SKF-compatible thrust ball bearings |
| Lubrication Flexibility | Grease or oil compatible — optimized for high-speed axial load applications |
| Precision Grades | P0 to P2 — ultra-precise tolerance control for critical machinery |
| Vibration Control | Z1V1–Z3V3 certified — ensures smooth, low-noise operation |
| Material & Durability | High-carbon chromium bearing steel (GCr15) — corrosion-resistant, long service life |
| Dimension Standard | 120×170×39 mm (e.g., 51224) — exact OEM interchangeability |
| Load Direction | Unidirectional thrust load only — ideal for gearboxes, cranes, and machine tool spindles |
| Quality Assurance | ISO 9001:2008 certified manufacturing — traceable batch testing & 100% inspection |
| Supply Reliability | In-stock availability + 1M pcs annual capacity — fast lead time, no MOQ pressure |
| Differentiator vs. Generic Brands | German-origin engineering alignment, tighter raceway geometry, and superior surface finish — 32% longer fatigue life (tested per ISO 281) |
Frequently Asked Questions
Q: Are these genuine SKF equivalents?
Yes — fully compliant with SKF dimensional, material, and performance standards (not counterfeit; factory-direct OEM-grade).
Q: Can they handle shock loads?
Designed for steady axial loads; for intermittent shock, we recommend P5/P4 grade with Z3V3 vibration class.
Q: What’s the max RPM at 120mm bore?
Up to 3,200 rpm (grease-lubricated, P0, ambient 20°C) — consult our engineer for custom speed/life calculation.
Q: Do you support custom packaging or labeling?
Yes — OEM/ODM service includes branded cartons, pallet labeling, and bilingual documentation.
