Product Specifications
| Parameter |
Details |
| Model NO. |
21317CCK |
| 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 |
| Trademark |
SKF/NTN/NSK/NMB/Koyo/NACHI/Timken |
| Origin |
China |
| HS Code |
8482300000 |
| Production Capacity |
1000000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Presses, Reducers |
| Agricultural Machinery |
Harvesters, Tractors |
| Construction |
Excavators, Heavy Load Equipment |
| Manufacturing |
Conveyors, Gearboxes, Electric Motors |
Minimize Downtime with Reliable 21317CCK-21324CCK W33 Self-Aligning Roller Bearings
Equipment failures due to bearing issues cost manufacturers thousands in lost production each year. Misalignment, overload, and poor precision often lead to premature wear, forcing unplanned shutdowns. Sourcing high-quality self-aligning roller bearings that meet industrial standards can be challenging, especially when dealing with minimum order requirements or long lead times.
Self-Aligning Roller Bearings Engineered for Industrial Durability
Our Self-Aligning Roller Bearings 21317CCK-21324CCK W33 address these challenges with P0-P4 precision ratings and robust construction. Designed to accommodate shaft misalignment and heavy radial loads, these bearings are ideal for industrial machinery such as machine tools and reducers. With 15 years of manufacturing experience, we ensure consistent quality through ISO9001 and ISO14001 certifications, supporting both standard orders and OEM/ODM customization.
Optimal Performance in Demanding Work Environments
Self-aligning roller bearings excel in applications with dynamic loads and potential misalignment, common in agricultural and construction equipment. The double-row roller design and radial load capacity make them suitable for heavy-duty operations, including conveyors and excavators. Proper bearing selection directly impacts equipment lifespan, reducing maintenance costs and ensuring smooth operation even under harsh conditions.
Key Technical Features That Matter
Precision rating is critical—P0 for general industrial use, P4 for high-precision machinery—ensuring minimal vibration and noise. Clearance options (C0, C3, C4) allow customization for thermal expansion and operating conditions; C3 and C4 clearances are recommended for high-temperature environments. The use of high-grade bearing steel enhances durability, while the unseparated design simplifies installation and maintenance, reducing downtime during replacements.
Invest in Quality to Avoid Hidden Costs
Choosing low-quality bearings may seem cost-effective initially, but frequent replacements and unexpected downtime quickly erase savings. Genuine bearings from established manufacturers like NSK and INA, available through our supply chain, offer reliable performance and longer service life. Our 12-month global warranty ensures protection against manufacturing defects, while free technical guidance helps optimize bearing selection, reducing the risk of premature failure.
Why Industrial Buyers Choose Saifan Bearings
With a production capacity of 1,000,000 units annually, we maintain flexible order options—1pc MOQ for standard items and 3–5 day sample lead times. Our full R&D and QC lab ensure each bearing meets precision standards, while multiple payment methods (T/T, credit card, Alibaba trade) simplify transactions. We serve global buyers across Europe, America, Southeast Asia, and the Middle East, offering defect replacement and refund policies to build long-term partnerships.
Packaging & Shipping
- Transport Package: Carton Pallet for secure delivery
- Sample Lead Time: 3–5 days for standard items
- Bulk Delivery: 5–15 days after order confirmation
- Logistics: Global shipping via trusted carriers
- MOQ: 1pc for standard bearings, supporting emergency repairs
Get Your Bearings Shipped Fast
Don’t let equipment downtime affect your production schedule. Whether you need a single replacement bearing or bulk order, we ensure quick processing and delivery. Send us your bearing model, required quantity, and application details to receive a quote within 24 hours—keep your machinery running with reliable self-aligning roller bearings.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, we supply authentic NSK/INA bearings and our own manufactured bearings with full traceability. We can provide certification and origin documentation upon request.
Q: How do I confirm the right bearing model for my equipment?
A: Provide your equipment model, shaft diameter, and operating conditions (load, speed, temperature), and our technical team will assist with选型确认 at no cost.
Q: What is your warranty policy?
A: We offer a 12-month global warranty covering manufacturing defects. Defective products will be replaced or refunded according to customer requirements.
Q: What is the minimum order quantity?
A: Standard items have a 1pc MOQ, ideal for emergency repairs or small-scale needs. Custom OEM/ODM orders may have different requirements based on specifications.
Q: How long does shipping take?
A: Samples ship within 3–5 days, bulk orders within 5–15 days. We use DHL, FedEx, UPS, or sea/air freight based on your location and urgency.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
