Product Specifications
| Parameter |
Details |
| Model NO. |
21320CA |
| 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 |
100*215*47 mm |
| Origin |
China |
| HS Code |
8482300000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Printing Presses, Reducers |
| Automotive |
Wheel Hubs, Transmission Systems |
| Agriculture |
Harvesters, Tractors |
| Construction |
Excavators, Heavy Load Equipment |
| New Energy |
Wind Turbines, Solar Equipment |
Minimize Downtime with Reliable Self-Aligning Roller Bearings 21320CA-21324CA W33
Industrial machinery operators know the cost of unexpected downtime—hours lost to bearing failures, missed production deadlines, and emergency repair costs. When standard bearings can’t handle misalignment or heavy radial loads, equipment performance suffers. Sourcing precision bearings with flexible order options often means compromising on lead times or quality.
Engineered for Heavy Loads and Misalignment in Industrial Machinery
Our Self-Aligning Roller Bearings, including models 21320CA, 21321CA W33, 21322CA, and 21324CA W33, are designed to solve these challenges. With double rows of rollers and a spherical outer ring, they accommodate shaft misalignment up to 2 degrees, reducing stress on machinery components. Ideal for industrial gearboxes, conveyors, and heavy-duty pumps, these bearings deliver consistent performance even under variable loads.
Optimal Performance in Demanding Industrial Conditions
Self-Aligning Roller Bearings excel in applications requiring high radial load capacity and resistance to shock. Whether in mining equipment, steel mills, or agricultural machinery, their robust bearing steel construction ensures durability in dusty, high-vibration environments. The W33 designation indicates a lubrication groove and three oil holes in the outer ring, enabling efficient maintenance and extended service life in continuous-operation systems.
Technical Features That Maximize Machinery Uptime
Precision rating options from P0 to P2 allow customization for specific accuracy needs—P5 and P4 grades suit high-speed machinery where minimal runout is critical. Clearance classes C0 (normal), C3 (increased), and C4 (greater) accommodate thermal expansion in applications like rolling mills or generators. The unseparated design simplifies installation, while the double-row roller configuration distributes loads evenly, reducing wear and extending bearing life by up to 30% compared to single-row alternatives.
Why Authentic Bearings Matter for Total Cost of Ownership
Counterfeit bearings may offer lower upfront costs, but they often fail prematurely due to substandard materials and poor manufacturing. A single bearing failure in a critical machine can cost thousands in downtime and repairs. Our bearings meet ISO 9001 quality standards, with each unit tested for dimensional accuracy and load capacity. Choosing genuine Self-Aligning Roller Bearings reduces the risk of unexpected failures, lowering long-term maintenance costs and protecting your production schedule.
Your Trusted Partner for Bearing Solutions Since 2005
With over 18 years serving global industrial clients, Jinan Saifan Bearing combines manufacturing expertise with responsive service. Our ISO 9001 and ISO 14001 certifications ensure consistent quality, from raw material inspection to final production. We offer OEM/ODM customization to meet unique specifications, backed by a 12-month global warranty and free technical support. Our flexible order policy—1pc MOQ for standard items, 3–5 day sample lead time, and 5–15 day bulk delivery—means you get the bearings you need when you need them.
Packaging & Shipping
- Carton and pallet packaging for secure transportation
- Sample lead time: 3–5 days for standard items
- Bulk delivery: 5–15 days after order confirmation
- Global shipping via T/T, credit card, or Alibaba trade terms
- 1pc MOQ available for emergency repairs and small-batch orders
Get Your Self-Aligning Roller Bearings Delivered Fast
Don’t let bearing issues slow down your operations. Whether you need 21320CA, 21321CA W33, 21322CA, or 21324CA W33 bearings, we have the inventory and expertise to fulfill your order quickly. Send us your requirements today and minimize downtime with reliable, precision-engineered bearings.
Frequently Asked Questions
Q: Are these bearings authentic and traceable?
A: Yes, we maintain full supply chain transparency and can provide certification of authenticity for all products.
Q: How do I confirm the right bearing model for my equipment?
A: Share your equipment model, load requirements, and operating conditions—our technical team will help verify the correct specification.
Q: What is your warranty policy?
A: We offer a 12-month global warranty covering manufacturing defects, with free replacement or refund available.
Q: What is the minimum order quantity?
A: 1pc MOQ for standard items, ideal for emergency repairs or small-scale projects.
Q: How quickly can you ship my order?
A: Samples ship in 3–5 days, bulk orders in 5–15 days, with flexible shipping options to meet your timeline.
Q: How can I verify the quality of the bearings?
A: All bearings undergo rigorous QC testing, and we can provide test reports upon request to confirm compliance with stated specifications.
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