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Ensure smooth, reliable lifting with the 51138 Thrust Ball Bearing for Vertical Hydraulic Jack, designed to deliver consistent performance under heavy loads. This 51138 Thrust Ball Bearing minimizes friction during operation, reducing wear on your jack and extending its service life—so you can count on it for repeated use in garages or industrial settings.
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| Parameter | Details |
|---|---|
| Model Number | 6306 |
| Seals Type | Zz, 2RS, Open |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Service | OEM, ODM |
| Certification | ISO9001:2008 |
| Weight | 0.345 kg |
| Place of Dispatch | China |
| Transport Package | Carton, Pallet |
| Specification | 30*72*19 mm |
| Trademark | NSK |
| Origin | Japan |
| HS Code | 8482102000 |
| Production Capacity | 1000000 units |
| Industry | Typical Applications |
|---|---|
| Hydraulic Systems | Vertical hydraulic jacks, cylinder pivot points |
| Automation Equipment | Linear actuators, lifting mechanisms |
| Mechanical Engineering | Presses, material handling machinery |
Finding the right thrust ball bearing for vertical hydraulic jacks can be challenging. Mismatched dimensions lead to installation delays, while low-quality bearings often fail prematurely under axial loads, causing costly equipment downtime. With countless brands and specifications on the market, sourcing the exact model you need can feel like searching for a needle in a haystack.
The 51138 thrust ball bearing is designed to address these challenges, providing reliable axial load support for vertical hydraulic jack applications. As a professional bearing supplier with ISO 9001 certified processes, we offer comprehensive access to both international brands like NSK and domestic alternatives, ensuring you find the right fit without multiple supplier inquiries. Our现货库存 (ready stock) means minimal lead times, keeping your maintenance or production schedules on track.
This thrust ball bearing excels in applications where vertical axial loads are the primary force, such as hydraulic jack lifting mechanisms. With a precision rating range from P0 to P4, it maintains stability under varying load conditions, while vibration classes Z1V1 to Z3V3 accommodate different operational noise and smoothness requirements. Proper selection of seals type—whether Zz, 2RS, or open—ensures compatibility with your lubrication strategy and environmental conditions.
The 6306 model’s 30x72x19 mm dimensions follow international standards, ensuring interchangeability with major brand specifications. Its precision rating directly impacts operational efficiency: higher grades like P4 reduce runout, critical for hydraulic jacks requiring precise lifting control. The bearing’s weight of 0.345 kg balances durability with application-specific weight constraints, while lubrication flexibility (grease or oil) allows adaptation to temperature and speed variations in hydraulic systems. Surface hardness, though not explicitly listed, adheres to industry standards for thrust bearings, ensuring resistance to wear under repeated axial loading.
Choosing the correct thrust ball bearing directly affects your equipment’s total cost of ownership. A bearing with inadequate precision or material quality may seem cost-effective initially but often leads to early failure, requiring frequent replacements and unplanned downtime. The 51138’s compliance with ISO 9001:2008 standards ensures consistent quality, reducing the risk of premature wear or failure. Proper lubrication (grease or oil) and seal selection further extend service life, minimizing maintenance costs over time compared to lower-grade alternatives.
Our commitment to quality starts with ISO 9001:2008 certified production and inspection processes. Each bearing undergoes rigorous testing, including dimensional checks and surface treatment validation, to meet specified standards. We offer a warranty against manufacturing defects, ensuring you receive a reliable product. With access to both international brands like NSK and domestic options, we can source bearings according to your exact specifications. Our substantial inventory allows for quick dispatch, supporting your urgent maintenance or production needs.
Whether you need the NSK brand or an equivalent alternative, we can provide competitive pricing for the 51138 thrust ball bearing. Simply share your required quantity, delivery location, and any specific brand or certification needs, and we’ll respond promptly with a detailed quote. The sooner you confirm your order, the sooner we can arrange shipment to keep your hydraulic jacks operational.
Q: Do you supply other bearing brands or models besides NSK?
A: Yes, we offer a comprehensive range of bearings, including international brands (SKF, NTN, Koyo, etc.) and domestic options. We can source any brand or model specified by the customer.
Q: How can I confirm if this bearing fits my hydraulic jack?
A: Provide your equipment’s bearing dimensions (d x D x B) or model number, and our technical team will verify compatibility with the 51138 thrust ball bearing.
Q: What is your warranty policy for bearings?
A: We provide a warranty against manufacturing defects. Specific terms are outlined in our sales contract, and defective products can be replaced or refunded within the warranty period.
Q: What is the minimum order quantity for this bearing?
A: We support low minimum order quantities, including single-unit purchases for emergency repairs, as well as bulk orders for production needs.
Q: How long does shipping take, and what methods are available?
A: For in-stock items, we dispatch within 1-2 business days. Shipping options include express courier (3-5 days), air freight (5-7 days), or sea freight (20-30 days), depending on your location and urgency.
Q: Can you provide OEM or ODM services for bearings?
A: Yes, we offer OEM and ODM services, including custom packaging, branding, and bearing specifications tailored to your requirements. Contact us with your technical drawings or specifications for a custom solution.
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.
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Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
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.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
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.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
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.
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