Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 51316 51117 |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 P2 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Certification | ISO9001:2008 |
| Stock | in Stock |
| Service | OEM ODM |
| Aligning | Non-Aligning Bearing |
| Separated | Separated |
| Rows Number | Single |
| Load Direction | Thrust Bearing |
| Material | Bearing Steel |
| Contact Angle | 0° |
| Transport Package | Carton Pallet |
| Specification | 180*300*95 mm |
| Origin | China |
| HS Code | 8482102000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Construction & Heavy Machinery | Crane Hooks, Excavators, Lifting Equipment |
| Industrial Machinery | Presses, Forging Machines, Vertical Shafts |
| Material Handling | Conveyor Systems, Hoists, Elevators |
Prevent Costly Downtime with High-Precision NTN Thrust Ball Bearing 51316 51117 for Crane Hooks
Crane operators and heavy machinery managers know the frustration: unexpected bearing failure in hook systems leads to halted operations, missed deadlines, and safety risks. Gray market bearings often lack proper traceability, failing prematurely under heavy axial loads—costing far more in downtime than the initial savings. Multi-tier distribution channels only worsen delays, leaving maintenance teams waiting weeks for critical replacements.
NTN Thrust Ball Bearings: In Stock and Engineered for Crane Hook Performance
Our High-Precision NTN Thrust Ball Bearing 51316 51117 eliminates these headaches. As an official NTN distributor, we maintain real-time WMS inventory, ensuring these crane hook bearings are ready for immediate shipment. The separated design allows easy installation and maintenance, while precision ratings from P0 to P2 accommodate applications requiring tight axial runout control. Whether your crane operates in construction yards or industrial facilities, these bearings deliver consistent performance under static and dynamic thrust loads.
Optimized for Heavy Axial Loads in Crane Hook Applications
Crane hooks endure extreme vertical loads during lifting operations, making thrust bearing reliability non-negotiable. The 51316 and 51117 models excel in these conditions, with a 0° contact angle designed to handle pure axial forces. Their single-row construction balances load capacity with compact dimensions—critical for crane hook assemblies where space is limited. When paired with proper lubrication (grease or oil), these bearings maintain stability even during intermittent operation, reducing wear and extending service life.
Technical Features That Ensure Reliable Crane Hook Operation
The performance of these thrust ball bearings stems from key engineering details. Precision ratings up to P2 minimize axial play, ensuring precise hook positioning and reducing vibration—critical for load stability. Vibration class Z3V3 options further enhance smooth operation, preventing noise and premature fatigue. Constructed from high-grade bearing steel, they withstand the rigors of heavy-duty use, while the separated design allows for easy inspection and re-lubrication without removing the entire assembly. At 180*300*95 mm, the 51316 model provides robust load capacity for larger crane systems, making it a versatile choice across multiple machinery types.
Avoid Hidden Costs: The Value of Genuine NTN Thrust Ball Bearings
Counterfeit thrust bearings may seem cheaper upfront, but they often lack proper heat treatment and material quality—leading to catastrophic failure under load. A single crane hook bearing failure can cost thousands in downtime, repair labor, and potential damage to lifted cargo. Our ISO 9001:2008 compliant three-level quality inspection ensures every NTN bearing meets strict performance standards. Full product traceability documentation eliminates customs clearance delays and provides liability protection, making genuine bearings the smarter long-term investment for your operation.
Why Global Buyers Choose Our NTN Thrust Ball Bearings
For over 10 years, we’ve served clients in 50+ countries by focusing on four pillars of reliability: official NTN authorization guarantees authentic products with complete traceability, from factory to installation. Our dedicated technical team provides application-specific guidance—helping you select the right precision grade and vibration class for your crane hook system. With WMS real-time inventory, we ship most orders within 3-7 business days, minimizing downtime. Global door-to-door logistics ensures timely delivery, whether you’re in Southeast Asia, Europe, or North America. Every bearing comes with export documentation, simplifying cross-border procurement.
Packaging & Shipping
- Secure carton and pallet packaging to prevent damage during transit
- 现货 available for immediate dispatch within 3-7 business days
- Flexible shipping options: DHL, FedEx, UPS, air freight, or sea freight
- Real-time tracking number provided once shipped
- Minimum order quantity: 1 piece, supporting emergency maintenance needs
Get Your Crane Hook Bearings Shipped Today
Don’t let bearing delays keep your cranes idle. Send us your required model (51316, 51117, or both), operating conditions, and quantity—our team will issue a formal quotation with traceability certificates within 24 hours. With in-stock availability, we can have your bearings on the way before traditional distributors even process your order.
Frequently Asked Questions
Q: Are these genuine NTN thrust ball bearings?
A: Yes, we are an official NTN authorized distributor. Every bearing comes with complete traceability documentation and brand authorization certificates to verify authenticity.
Q: How do I confirm if the 51316 or 51117 model fits my crane hook?
A: Provide your crane model, hook load capacity, and existing bearing dimensions. Our technical team will cross-verify with NTN specifications to ensure proper fit.
Q: What is the warranty policy for these bearings?
A: We offer the full NTN manufacturer warranty, covering manufacturing defects. If a bearing fails due to material or production issues, we provide free replacement and support.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, ideal for emergency repairs or small-batch requirements. Volume discounts are available for larger orders.
Q: How quickly can you ship to [my country]?
A: Most in-stock orders ship within 3-7 business days. Transit time depends on location—typically 3-5 days via express courier to major global cities.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Check for NTN laser marking on the inner ring, scan
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