Product Specifications
| Parameter |
Details |
| Model NO. |
21317CC |
| Precision Rating |
P0 P6 P5 P4 P2 |
| Clearance |
C0 C3 C4 |
| Service |
OEM ODM |
| Rolling Body |
Roller Bearings |
| The Number of Rows |
Double |
| Material |
Bearing Steel |
| Spherical |
Aligning Bearings |
| Load Direction |
Radial Bearing |
| Separated |
Unseparated |
| Outer Dimension |
50-2500 |
| Specification |
85*180*41 mm |
| HS Code |
8482300000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Presses, Reducers |
| Automotive |
Transmission Systems, Wheel Hubs |
| Agriculture |
Harvesters, Tractors |
| Construction |
Excavators, Heavy Load Machinery |
| New Energy |
Wind Turbines, Solar Equipment |
Prevent Costly Downtime with Precision Self-Aligning Roller Bearings 21317-21324CC W33
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. Misalignment issues, heavy radial loads, and inconsistent quality from low-grade suppliers often lead to premature wear, production delays, and increased maintenance costs. When your machinery grinds to a halt, every minute of downtime eats into your bottom line.
Self-Aligning Roller Bearings Engineered for Reliable Performance
Our Self-Aligning Roller Bearings 21317-21324CC W33 are designed to address these critical challenges. With double rows of rollers and a spherical outer ring, they automatically compensate for shaft misalignment, reducing stress on your equipment. Manufactured to P0-P4 precision standards using high-quality bearing steel, these industrial bearings deliver consistent performance even under heavy loads—perfect for machine tools, reducers, and printing presses where reliability is non-negotiable.
Optimal Performance in Demanding Industrial Environments
These W33 Aligning Bearings excel in applications requiring high radial load capacity and moderate axial load handling. The self-aligning feature makes them ideal for machinery subjected to shaft deflection or misalignment, common in agricultural equipment like tractors and construction machinery such as excavators. Whether operating in dusty workshops or outdoor job sites, their robust construction ensures long service life under challenging conditions.
Technical Excellence That Drives Machinery Efficiency
Precision is at the core of these bearings' performance. The P0-P4 precision ratings ensure minimal vibration and noise, critical for high-speed industrial applications. Clearance options (C0, C3, C4) allow customization based on operating conditions—C3 and C4 clearances accommodate thermal expansion in high-temperature environments, while C0 provides standard operation. The double-row roller design distributes loads evenly, increasing dynamic load capacity and extending bearing life, reducing the need for frequent replacements.
Why Compromising on Quality Costs More in the Long Run
Choosing low-quality bearings may seem like a cost-saving measure, but the hidden expenses add up quickly. Inferior materials and imprecise manufacturing lead to early failure, resulting in unplanned downtime, expensive repairs, and potential damage to connected components. Our Precision Roller Bearings, backed by ISO9001 and ISO14001 certifications, offer proven reliability. With a 12-month global warranty, you avoid the hidden costs of counterfeit or substandard products, ensuring lower total cost of ownership over time.
Your Trusted Partner for Industrial Bearing Solutions
Since 2005, Jinan Saifan Bearing has served global buyers with integrated manufacturing and exporting capabilities. Our commitment to quality is supported by a full R&D team and QC lab, ensuring every bearing meets strict standards. We offer flexible orders with 1pc MOQ for standard items, 3–5 days sample lead time, and 5–15 days bulk delivery—perfect for both emergency repairs and regular stock replenishment. Our technical team provides free guidance to help you select the right bearings for your specific application, ensuring optimal performance and longevity.
Packaging & Shipping
- Carton and pallet packaging for secure transportation
- 3–5 days lead time for samples, 5–15 days for bulk orders
- Multiple shipping options including express (DHL, FedEx), air, and sea freight
- Real-time tracking provided for all shipments
- 1pc minimum order quantity available for standard items
Get Your Machinery Back to Peak Performance
Don’t let bearing issues slow down your production. Whether you need a single replacement bearing or a bulk order for your facility, we’re ready to deliver. Send us your bearing型号, application details, and quantity, and our team will provide a prompt quote. With fast shipping and reliable support, you can minimize downtime and keep your operations running smoothly.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, all our bearings are manufactured in-house under strict quality control and can be traced through our production records. We hold ISO9001 and ISO14001 certifications to ensure authenticity and quality.
Q: How do I confirm the right bearing size for my equipment?
A: Provide your equipment model, shaft diameter, or existing bearing specifications, and our technical team will verify the correct fit for your application at no cost.
Q: What warranty coverage do you offer?
A: We provide a 12-month global warranty against manufacturing defects. If you encounter issues, we offer free replacement or refund for defective products.
Q: What is the minimum order quantity?
A: We accept 1pc MOQ for standard items, making it easy to order replacement bearings for emergency repairs.
Q: How long does shipping take?
A: Sample lead time is 3–5 days, and bulk orders are delivered within 5–15 days. Shipping time depends on your location and chosen method (express, air, or sea).
Q: Can you provide technical support for installation?
A: Yes, our technical team offers free guidance on installation, maintenance, and troubleshooting to ensure optimal bearing performance.
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