Product Specifications
| Parameter |
Details |
| Model NO. |
21310CAK |
| 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 |
| Specification |
50*110*27 mm |
| Origin |
China |
| HS Code |
8482300000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Equipment, Reducers |
| Auto Parts Manufacturing |
Transmission Systems, Drivetrain Components |
| Agricultural Machinery |
Harvesters, Tractors, Farm Equipment |
| Construction Machinery |
Excavators, Loaders, Heavy-Duty Machinery |
| New Energy |
Wind Turbines, Solar Equipment Drivetrains |
Minimize Downtime with Reliable 21310CAK W33 Self-Aligning Roller Bearings
Industrial machinery operators know the cost of unexpected bearing failure—hours of production lost, expensive repairs, and missed deadlines. When your equipment relies on precise rotation under heavy loads, settling for low-quality bearings often leads to premature wear, misalignment issues, and frequent replacements. Sourcing from unreliable suppliers can compound these problems, with inconsistent lead times and uncertain product authenticity.
Self-Aligning Roller Bearing 21310CAK W33: Engineered for Industrial Stability
Our 21310CAK W33 Self-Aligning Roller Bearing addresses these challenges with precision engineering and flexible service options. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we ensure each bearing meets P0-P4 precision standards, critical for applications like machine tool spindles and reducer gearboxes. With a minimum order quantity of 1 piece for standard items and sample lead times of 3–5 days, we support both emergency repairs and bulk production needs.
Optimal Performance in Demanding Industrial Conditions
This double-row self-aligning roller bearing excels in environments where shaft misalignment is common, such as conveyor systems and agricultural machinery. Its radial load capacity makes it ideal for heavy-duty equipment like excavators and printing presses, while the self-aligning design compensates for installation errors and shaft deflection. Whether operating in high-vibration settings or under varying load conditions, the 21310CAK bearing maintains stable rotation, reducing maintenance interruptions.
Technical Features That Maximize Equipment Uptime
The 21310CAK W33 bearing’s performance is defined by key technical attributes that directly impact industrial machinery reliability. Its precision rating (P0-P4) ensures minimal runout and vibration, critical for high-speed applications like CNC machine spindles. Clearance options (C0, C3, C4) allow customization for thermal expansion needs—C3 clearance, for example, suits high-temperature environments in steel mills. Constructed from premium bearing steel, it delivers wear resistance essential for long service life in dusty or abrasive conditions, while the unseparated design simplifies installation and reduces assembly errors.
Why Authentic Bearings Lower Total Cost of Ownership
Choosing genuine self-aligning roller bearings over counterfeit alternatives eliminates hidden costs associated with frequent replacements and unexpected downtime. A single bearing failure in a production line can cost thousands in lost output, not to mention repair labor and replacement parts. Our bearings come with a 12-month global warranty, ensuring defect replacement or refund if issues arise. By adhering to strict quality control processes—including full R&D and QC lab testing—we guarantee consistent performance that reduces long-term maintenance expenses.
Your Trusted Partner for Bearing Supply
With over 18 years of experience serving global buyers across Europe, America, and Southeast Asia, Jinan Saifan Bearing has built a reputation for reliability. Our production capacity of 1,000,000 units annually ensures stable supply, even for large-scale orders. We offer full OEM/ODM customization to meet unique equipment requirements, backed by free technical guidance from our engineering team. All bearings undergo rigorous inspection before shipment, and we provide flexible payment options including T/T, credit card, and Alibaba trade assurance for secure transactions.
Packaging & Shipping
- Carton and pallet packaging for secure transportation
- Sample lead time: 3–5 days; bulk delivery: 5–15 days
- Global shipping via DHL, FedEx, UPS, air, or sea freight
- Real-time tracking number provided for all orders
- 1pc MOQ for standard items, supporting emergency repairs
Get Your 21310CAK Bearing Shipped Today
Don’t let bearing issues disrupt your production schedule. Whether you need a single replacement or bulk order, our 21310CAK W33 Self-Aligning Roller Bearings are ready to ship. Send us your specifications, and our team will confirm compatibility and provide a quote within 24 hours. The sooner you order, the faster you can restore your machinery to full operation.
Frequently Asked Questions
Q: Are these bearings authentic?
A: Yes, we manufacture our own bearings to P0-P4 precision standards and supply authentic NSK/INA bearings through verified channels. Each product comes with traceable quality documentation.
Q: How do I confirm if the 21310CAK fits my equipment?
A: Provide your equipment model or technical specifications (load, speed, operating conditions), and our engineering team will verify compatibility and offer free选型 support.
Q: What is your warranty policy?
A: We offer a 12-month global warranty. Manufacturing defects are covered by replacement or refund, with free technical guidance for installation and troubleshooting.
Q: What is the minimum order quantity?
A: Standard items have a 1pc MOQ, ideal for emergency repairs. Custom OEM/ODM orders may have different requirements based on specifications.
Q: How long does shipping take?
A: Samples ship in 3–5 days; bulk orders take 5–15 days. We offer multiple logistics options to meet your timeline, with tracking provided for all shipments.
Q: How can I verify bearing quality upon receipt?
A: Check the precision rating marked on the bearing and review the included quality certificate. Our QC lab data is available upon request for additional verification.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
