-- SKF Authorized Engineering Partner
Ensure smooth, high-load operations with our reliable Self-Aligning Roller Bearing, designed to minimize downtime and maintain precision even in misaligned conditions. Crafted from premium Bearing Steel and available in precision ratings P0 to P4, this bearing delivers consistent performance for industrial machinery, with rich stocks ensuring quick fulfillment for urgent needs.
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
| Parameter | Details |
|---|---|
| Model Number | UC208 |
| Bearing Type | Insert Bearing |
| Feature | High Load |
| Rows Number | Single |
| Raceway | Deep Groove Raceway |
| Material | Bearing Steel |
| Bearing Block Model | UK |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Specification | 70*78*305 mm |
| Trademark | BDL/NSK/FYH |
| Origin | China |
| HS Code | 8483200000 |
| Industry | Typical Applications |
|---|---|
| Construction Machinery | Conveyor systems, material handling equipment |
| Automation | Assembly line components, rotating mechanisms |
| Industrial Equipment | Hydraulic systems, mechanical drives |
Many buyers struggle with bearing procurement challenges—matching the correct dimensions across different brand standards, dealing with frequent maintenance needs in hard-to-reach installations, or facing early failures due to poor material quality. When specifying a self-aligning roller bearing like the NSK NTN 22308-22311MB/W33 series, these issues can lead to costly downtime and rework.
This self-aligning roller bearing addresses common industry pain points through its robust design and versatile specifications. With high load capacity and a deep groove raceway, it handles radial and axial loads effectively in applications like conveyor systems and industrial machinery. Our ISO 9001-certified production processes ensure consistent quality, while our extensive inventory of both自有 and international brands (including NSK, NTN, and others) means you can source the exact bearing you need without multiple supplier delays.
Self-aligning roller bearings excel in scenarios where shaft misalignment is inevitable—such as in heavy-duty construction equipment or mining machinery. The 22308-22311MB/W33 series accommodates angular misalignment, reducing stress on the bearing and extending service life. Its bearing steel construction provides excellent durability, making it suitable for continuous operation under varying temperatures and moderate contamination levels.
The single-row design balances load capacity with compact dimensions, making it ideal for installations where space is limited. Precision ratings from P0 to P4 allow selection based on application requirements—P5 or P4 grades for high-speed equipment requiring minimal vibration (Z1V1 to Z3V3 vibration classes), and P0 for general industrial use. The option for grease or oil lubrication ensures flexibility across operating conditions, with proper lubrication critical to maximizing the bearing’s dynamic load handling capabilities.
Choosing the right self-aligning roller bearing directly impacts long-term costs. A bearing with incorrect precision or material grade may fail prematurely, leading to unplanned downtime, equipment damage, and replacement expenses. This series, with its high load feature and strict quality control, minimizes these risks. By adhering to ISO standards for dimensions and performance, it ensures interchangeability with major international brands, simplifying replacement and reducing inventory costs.
Our production and inspection processes follow ISO 9001 standards, with rigorous testing of raw materials and finished products for dimensional accuracy, surface hardness, and surface treatment. Each bearing undergoes vibration testing to meet specified Z-class standards, ensuring reliable operation. We provide a warranty against manufacturing defects, and our ability to supply both standard and custom (OEM/ODM) bearings means we can meet unique application requirements.
Whether you need the NSK NTN 22308-22311MB/W33 self-aligning roller bearing or another model, provide your required specifications—model number, dimensions, quantity, and destination—and we’ll deliver a competitive quote with lead time. Our full range of brands and型号 ensures you can source all your bearing needs from a single supplier.
Q: Do you supply bearings from other brands or models?
A: Yes, we support inquiries for all bearing brands and models, including international brands like SKF, Koyo, NACHI, and domestic优质 brands. We can supply bearings according to your specified brand or model requirements.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment’s required bearing dimensions (d x D x B), model number, or application details, and our technical team will verify compatibility with the NSK NTN 22308-22311MB/W33 series or recommend suitable alternatives.
Q: What is your warranty policy?
A: We offer a warranty period for manufacturing defects. Specific terms are detailed in the sales contract, and defective products covered by warranty can be replaced or returned.
Q: What is the minimum order quantity?
A: We support low minimum order quantities, allowing small-batch trial orders to meet your initial needs before larger-scale purchases.
Q: How long does shipping take and what methods are available?
A: In-stock bearings are shipped promptly. We offer flexible shipping via sea or air, with delivery times depending on the destination and chosen method.
Q: Do you offer OEM/ODM customization?
A: Yes, we provide OEM and ODM services. Custom bearings can be manufactured according to your drawings, specifications, or performance requirements.
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.
Contact us today
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
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.
Regarding: NSK NTN 22308-22311MB/W33 Self-Aligning Roller Bearing
-- Related Products
SKF Authorized Engineering Partner
Need technical support or a custom solution?
15+ certified engineers ready to help. Response within 24 hours.
