ISO 9001 Certified
TS 16949
Genuine SKF
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Thrust Ball Bearing
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.7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
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.
Product Summary
- Product Name
- Factory Direct 51224/51126/51226/51128/51228 Thrust Ball Bearings
- Category
- Thrust Ball Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Thrust Ball Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
Factory Direct 51224/51126/51226/51128/51228 Thrust Ball Bearings
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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