Description
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 22212 |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 P2 |
| Clearance | C0 C3 C4 |
| Service | OEM ODM |
| Rolling Body | Roller Bearings |
| The Number of Rows | Double |
| Outer Dimension | Large (200-430mm) |
| Material | Bearing Steel |
| Spherical | Aligning Bearings |
| Load Direction | Radial Bearing |
| Separated | Unseparated |
| Transport Package | Carton Pallet |
| Specification | 60*110*28 mm |
| Origin | China |
| HS Code | 8482300000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction | Concrete Mixer Trucks |
Need Reliable Self-Aligning Roller Bearings for Concrete Mixer Trucks? Here’s What Matters
Concrete mixer trucks operate under extreme conditions—constant vibration, heavy loads, and misalignment from uneven terrain. Choosing the wrong bearing often leads to premature failure, costly downtime, and safety risks. Many buyers struggle with finding bearings that balance precision, durability, and availability for these critical applications.
Built for Demanding Concrete Mixer Operations
Our Self-Aligning Roller Bearings, including models like 22220CA, 22222CA, 22224CA, and 22226CA, are engineered to address these challenges. With P0-P2 precision ratings and double-row roller design, they accommodate both radial loads and moderate axial loads, making them ideal for the mixing drum’s oscillating motion. As a professional bearing supplier with extensive industry experience, we ensure these bearings meet the rigorous demands of concrete mixer trucks through ISO 9001-certified production processes and comprehensive quality testing.
Optimal Performance in Heavy-Duty Conditions
These self-aligning roller bearings excel in applications where shaft misalignment is common—such as concrete mixer drum axles. The spherical outer ring design allows for angular misalignment up to 2-3 degrees, reducing stress on the bearing and extending service life. Made from high-grade bearing steel, they withstand the heavy radial loads (typically 50-100 kN in mixer applications) and temperature variations from 0°C to 120°C encountered during operation. Proper clearance selection (C0, C3, or C4) further ensures optimal performance under different load and temperature conditions.
Key Engineering Features for Longevity
The double-row roller configuration distributes load evenly across the bearing, minimizing stress concentrations and improving fatigue resistance. Precision ratings from P0 (standard) to P2 (high precision) allow customization based on application requirements—P2 is recommended for high-speed mixer trucks where reduced vibration is critical. The unseparated design simplifies installation and maintenance, while the option for grease or oil lubrication provides flexibility for different operating environments. Surface hardness testing ensures the raceways and rollers meet industry standards, directly impacting wear resistance and overall bearing life.
Why Choosing the Right Bearing Lowers Total Costs
Selecting a quality self-aligning roller bearing like the 22220CA or 22226CA for concrete mixers reduces long-term costs significantly. Inferior bearings often fail within 3-6 months, leading to replacement labor, equipment downtime, and potential secondary damage to the mixer drum or axle. In contrast, properly selected bearings with the correct clearance and precision can operate for 12-18 months under normal conditions. By adhering to ISO 281 standards for bearing life calculation, we help customers avoid over-specifying (unnecessary cost) or under-specifying (premature failure), optimizing total cost of ownership.
Quality You Can Rely On
Our production and inspection processes are ISO 9001 certified, ensuring consistent quality from raw material testing to final dimensional checks. Each bearing undergoes hardness testing (typically 58-62 HRC for bearing steel) and surface finish inspection to meet specified tolerances. We provide a standard warranty against manufacturing defects, with clear terms for returns and replacements. With access to a wide range of global brands and models, we can source or produce bearings according to customer specifications, including OEM/ODM requirements. Our inventory system ensures common models are available for quick shipment, reducing lead times for urgent repairs.
Packaging & Shipping
- Standard packaging: Carton boxes with palletization for bulk orders
- Package size: 12.00cm * 12.00cm * 4.80cm per unit
- Gross weight per package: 1.300kg
- Shipping options: Express, air freight, or sea freight based on order size and urgency
- Minimum order quantity: Flexible, supporting both small trial orders and large bulk purchases
Get a Quote for Your Concrete Mixer Bearings
Whether you need 22220CA, 22222CA, 22224CA, 22226CA, or other self-aligning roller bearings for concrete mixer trucks, provide us with the model, quantity, and required precision class. Our team will confirm availability, pricing, and delivery time to help you keep your equipment running smoothly.
Frequently Asked Questions
Q: Do you supply bearings from other brands or only specific models?
A: We support procurement of bearings across all major international and domestic brands, including SKF, NSK, NTN, Koyo, and others. We can source or produce bearings according to your specified brand, model, or dimensional requirements.
Q: How can I confirm if this bearing fits my concrete mixer truck?
A: Provide the original equipment manufacturer (OEM) part number, bearing dimensions (bore diameter d, outer diameter D, width B), or mixer model. Our technical team will cross-reference these details to verify compatibility.
Q: What is your warranty policy for these bearings?
A: We offer a warranty against manufacturing defects, with terms varying by product and application. Typically, the warranty period is 6-12 months from delivery. Defective products will be replaced or refunded after inspection, as per the terms outlined in your purchase agreement.
Q: What is the minimum order quantity for these self-aligning roller bearings?
A: We have low minimum order quantities to accommodate both small maintenance orders and large-scale production needs. For standard models, we can often fulfill orders for single units, while bulk pricing is available for quantities over 50 units.
Q: How long does it take to ship after placing an order?
A: In-stock models ship within 1-3 business days. For custom or non-stock items, lead times range from 7-30 days depending on production requirements. We offer express shipping options for urgent orders to minimize downtime.
Q: Can you provide custom bearings with specific lubrication or packaging?
A: Yes, we support OEM/ODM customization, including pre-lubrication with specific greases, custom laser marking, and special packaging (e.g., anti-corrosion coating,







