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Ensure smooth, reliable operation even in misaligned conditions with this high-performance Self-Aligning Roller Bearing. Designed to reduce downtime and extend equipment lifespan, it handles both radial and axial loads with precision, making it ideal for heavy-duty machinery where alignment challenges are common.
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| Parameter | Details |
|---|---|
| Model Number | 51103 |
| Bearing Type | Thrust Bearing |
| Specification | 17*30*9 mm |
| Material | Bearing Steel |
| Precision Rating | P0 P6 P5 P4 P2 |
| Lubrication | Grease or Oil |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Aligning | Non-Aligning Bearing |
| Separated | Separated |
| Rows Number | Single |
| Load Direction | Thrust Bearing |
| Contact Angle | 0° |
| Certification | ISO9001:2008 |
| Stock | in Stock |
| Service | OEM ODM |
| Trademark | NSK |
| Origin | Japan |
| Transport Package | Carton Pallet |
| Industry | Typical Applications |
|---|---|
| Automation Equipment | Linear actuators, precision slides |
| Hydraulic Systems | Cylinder end supports, pump assemblies |
| Mechanical Engineering | Press machinery, gearbox thrust applications |
Finding the right thrust bearing for your equipment often means sifting through inconsistent quality and limited brand options. Many buyers face delays from suppliers with restricted inventory, or receive bearings that fail prematurely due to substandard material hardness. When downtime costs add up, choosing the wrong supplier can be more expensive than the bearing itself.
This 51103 thrust bearing addresses these challenges with ISO 9001:2008 certified manufacturing and readily available stock. Designed for single-direction axial load applications, its separated structure allows for easy mounting and maintenance—ideal for hydraulic cylinder end supports and precision automation equipment where reliable thrust handling is critical. As part of our comprehensive bearing portfolio, we offer both this NSK model and compatible alternatives across leading international brands.
This single-row thrust bearing excels in applications with pure axial loads up to its rated capacity, operating efficiently with either grease or oil lubrication. Its non-aligning design performs best in rigidly mounted systems where shaft misalignment is minimal, such as mechanical presses and gearbox thrust positions. The 0° contact angle ensures direct load transmission, making it a workhorse for industrial machinery requiring consistent axial support.
Constructed from high-grade bearing steel, this 51103 model delivers the hardness and wear resistance needed for long service life. The precision rating options (P0 to P2) allow selection based on application tolerance requirements—from general industrial use (P0) to precision machine tools (P2). Vibration classes Z1V1 to Z3V3 provide flexibility for noise-sensitive environments, while the separated inner and outer rings simplify installation and replacement. These features combine to create a bearing that maintains performance even under continuous axial load conditions.
Choosing a bearing with the correct precision rating and material quality directly impacts equipment uptime. A bearing that meets P5 precision standards reduces vibration-induced wear on adjacent components, while bearing steel construction resists deformation under load—minimizing the risk of catastrophic failure. Unlike lower-grade alternatives, this 51103 model follows international dimensional standards, ensuring interchangeability and reducing inventory costs by eliminating the need for custom replacements. The result is lower total cost of ownership through extended service intervals and reduced maintenance requirements.
Our quality commitment starts with ISO 9001:2008 compliant production processes, including rigorous原材料检验 and成品 testing for dimensions, hardness, and surface finish. Each bearing comes with a warranty against manufacturing defects, providing assurance that your investment is protected. With access to both established brands like NSK and domestic alternatives, we can source the exact specification you need—whether you require the original Japanese-manufactured model or a cost-effective equivalent that meets the same performance standards.
Whether you need this specific NSK 51103 model or a compatible alternative, we can provide pricing and availability within hours. Simply share your required quantity, delivery location, and any special packaging or certification needs, and our team will prepare a tailored quote. With our extensive brand coverage and in-stock inventory, you can secure the bearings you need without unnecessary delays.
Q: Can you source other bearing brands or models besides NSK?
A: Yes, we offer a full range of international and domestic brands, including SKF, NTN, Koyo, NACHI, and IKO, as well as custom-manufactured options. We can supply bearings to match any specified brand or dimensional standard.
Q: How do I confirm if this 51103 bearing fits my equipment?
A: Provide your equipment model or existing bearing dimensions (bore diameter x outer diameter x width), and our technical team will cross-verify compatibility with this 17*30*9 mm thrust bearing.
Q: What is your warranty policy for this bearing?
A: We provide a warranty against manufacturing defects. Specific terms are detailed in our sales agreement, with coverage typically ranging from 6 to 12 months depending on application and usage conditions.
Q: What is the minimum order quantity for this bearing?
A: We accept orders for single units, making it easy to source replacement parts or test samples before committing to larger volumes.
Q: How quickly can you ship the 51103 bearing?
A: Since this model is in stock, we can dispatch orders within 1-2 business days. Shipping time depends on your location and chosen delivery method.
Q: Do you offer OEM or custom bearing manufacturing?
A: Yes, we support OEM and ODM services, including custom dimensions, materials, and lubrication options, for applications requiring specialized bearing solutions.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
sales@bearing-solutions.com | +1-800-123-4567
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In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
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Performance Metrics
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Failures Prevented
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Downtime Reduction
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Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
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Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
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No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: Bdl 24056-24072cc W33 Self-Aligning Roller Bearing
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