Product Specifications
| Parameter |
Details |
| Model NO. |
21320, 21321, 21322 |
| 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 |
| Transport Package |
Carton Pallet |
| Specification |
100*215*47 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, Gearboxes, Reducers, Conveyors |
| Automotive |
Transmission Systems, Heavy-Duty Vehicle Axles |
| Agricultural Machinery |
Tractors, Harvesters, Tillage Equipment |
| Construction |
Excavators, Loaders, Crushers |
| New Energy |
Wind Turbines, Solar Tracking Systems |
Reduce Downtime with High-Capacity Spherical Roller Bearings 21320 21321 21322 for Industrial Machinery
Equipment downtime from bearing failures costs manufacturers thousands in lost production each year. Many face challenges with unreliable suppliers offering inconsistent quality, long lead times for critical replacements, and difficulty finding bearings that handle heavy radial loads without premature wear. As a bearing specialist with over 15 years serving industrial clients worldwide, we understand how these issues disrupt operations—especially in high-stress applications like gearboxes and conveyors.
High-Capacity Spherical Roller Bearings Engineered for Heavy-Duty Performance
Our Spherical Roller Bearings 21320, 21321, and 21322 series address these pain points with robust design and reliable supply. These double-row radial bearings deliver exceptional load capacity, making them ideal for industrial machinery operating under heavy loads and moderate misalignment. With precision ratings from P0 to P4 and clearance options including C0, C3, and C4, they adapt to diverse operating conditions—from CNC machine spindles to agricultural equipment reducers. Backed by our one-stop service model, we ensure consistent availability with flexible order policies, including 1-piece MOQ for standard bearings and sample orders shipped within 3-5 working days.
Optimal Performance in Demanding Industrial Environments
These Spherical Roller Bearings excel in applications requiring high radial load handling and alignment compensation. The self-aligning design accommodates shaft misalignment up to 2 degrees, reducing stress on machinery components in vibrating or dynamically loaded systems. Constructed with high-grade bearing steel, they maintain stability in temperatures ranging from -30°C to 120°C, suitable for both indoor manufacturing facilities and outdoor construction sites. Whether powering a conveyor in a mining operation or a gearbox in a textile mill, these bearings provide the durability needed to minimize unplanned maintenance.
Technical Features That Maximize Machinery Uptime
The performance of these bearings is defined by critical technical attributes. The precision rating (P0-P4) ensures dimensional accuracy, with higher grades (P4/P5) reducing vibration and noise in high-speed applications like printing presses. Clearance grades (C3/C4) are engineered for thermal expansion in elevated temperature environments, preventing seizure in continuous-duty equipment. The double-row roller design distributes loads evenly, increasing dynamic load capacity and extending service life in heavy machinery such as excavators. Additionally, the unseparated structure simplifies installation and replacement, reducing maintenance time during critical repairs.
Why Genuine Bearings Lower Total Cost of Ownership
Choosing genuine Spherical Roller Bearings over counterfeit alternatives directly impacts your bottom line. Inferior bearings often fail within months, leading to repeated replacements, unplanned downtime, and potential damage to expensive equipment. Our products meet ISO, ABMA, and DIN international standards, with each unit undergoing strict quality control—including dimensional detection and vibration testing in our in-house laboratory. While counterfeit bearings may offer lower upfront costs, the cumulative expense of failures, repairs, and lost production typically exceeds genuine bearing investments by 300% within a year. We prioritize long-term reliability, helping clients reduce total cost of ownership through consistent performance.
Our Commitment to Reliable Bearing Supply
With over 18 years of manufacturing and export experience, we stand behind every bearing we supply. Our ISO 9001:2015 and ISO 14001 certified facilities ensure strict quality management from raw material inspection to finished product testing. We maintain a large inventory of standard bearings, enabling 5-15 working day delivery for bulk orders. Our technical team provides free guidance on bearing selection, installation, and maintenance, with remote troubleshooting support to minimize downtime. We also offer a 12-month warranty, with free replacements or refunds for qualified defective products. Trusted by clients in Europe, North America, Southeast Asia, and the Middle East, we’ve built our reputation on integrity and customer-focused service.
Packaging & Shipping
- Secure packaging with carton and pallet to prevent damage during transit
- Sample orders shipped within 3-5 working days; bulk orders within 5-15 working days
- Multiple logistics options: DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking provided for all shipments
- Flexible MOQ: 1 piece for standard bearings, sample orders with no MOQ
Request Your Quote Today
Don’t let bearing issues slow down your operations. Whether you need a single replacement or bulk order, our team is ready to assist. Provide your bearing model, application details, and quantity, and we’ll deliver a competitive quote within 24 hours. With our fast shipping and reliable quality, you can get your machinery back to full capacity quickly.
Frequently Asked Questions
Q: Are these bearings genuine original products?
A: Yes, we supply genuine original brand bearings including NSK, INA, and others, with full traceability to ensure authenticity.
Q: How can I confirm the correct bearing model for my equipment?
A: Our professional technical team can help verify the correct model by analyzing your equipment specifications or existing bearing dimensions.
Q: What is the warranty policy for these bearings?
A: We offer an official 12-month warranty from the date of delivery, covering manufacturing defects with free replacement or refund options.
Q: What is the minimum order quantity?
A: Standard bearings have a 1-piece MOQ, while sample orders have no MOQ requirement. Customized orders can be negotiated based on specifications.
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Tags:
High Capacity Bearings
Industrial Bearings
Industrial Machinery Bearings CC CA
Roller Bearings
spherical roller bearings
Spherical Roller Bearings 21320
Spherical Roller Bearings 21321
Spherical Roller Bearings 21322 W33
