Self-aligning ball bearings have a spherical outer ring raceway, which automatically compensates for shaft deflection or different shaft misalignment (typically allowing 1.5°~3° tilt). They mainly bear radial loads. Common series include 1200, 1300, 2200, and 2300. The material is mostly high-carbon chromium steel (SUJ2), and there are two structures: cylindrical bore and tapered bore.
A Self-Aligning Ball Bearing consists of:
Inner ring
Spherical outer ring
Two rows of precision balls
Cage (retainer)
Optional sealing system
Heat Treatment
Through-hardening for rings and balls
Carburizing for heavy-duty applications
Controlled quenching for dimensional stability
Optional Surface Enhancements
Black oxide coating (corrosion resistance)
Phosphate treatment (improved lubrication retention)
Special coatings for harsh environments
Electric motors
Agricultural equipment
Conveyor systems
Fans and blowers
Industrial gearboxes
Transmission systems
Pump drives
Large industrial equipment
Continuous production systems
Heavy-load machinery
High-speed motors
Precision industrial equipment
| Bearing Model | Aperture (d) | Outer Diameter(D) | Width (B) | Cage Type | Sealed Form |
| 1205 | 25 mm | 52 mm | 15 mm | TN9/steel | Open |
| 1206 | 30 mm | 62 mm | 16 mm | TN9/steel | Open |
| 1306 | 30 mm | 72 mm | 19 mm | TN9/steel | Open |
| 2205 | 25 mm | 52 mm | 18 mm | TN9/steel | Open |
| 2206 | 30 mm | 62 mm | 20 mm | TN9/steel | Open |
| 2208 | 40 mm | 80 mm | 23 mm | TN9/steel | Open/2RS |
| 2308 | 40 mm | 90 mm | 33 mm | TN9/steel | Open |
| 1210 | 50 mm | 90 mm | 20 mm | TN9/steel | Open |
| 2210 | 50 mm | 90 mm | 23 mm | TN9/steel | Open/2RS |
| 2310 | 50 mm | 110 mm | 40 mm | TN9/steel | Open |
Spherical outer raceway design
Accommodates angular misalignment
Reduces stress concentration
Protects shaft and housing integrity
This directly reduces installation sensitivity and field failure risk.
Premium chrome steel (GCr15 / 100Cr6)
Optimized heat treatment
Controlled internal geometry
Result:
Extended L10 service life
Reduced downtime
Lower warranty exposure for OEMs
Precision-ground raceways
Controlled radial clearance
Optimized cage design
Critical for motor-driven equipment and vibration-sensitive systems.
We provide:
Open type
Sealed type (2RS)
Metal shield type (ZZ)
Cylindrical bore
Tapered bore
Adapter sleeve solutions
This ensures compatibility across various housing and shaft configurations.
As a manufacturer, we offer:
Full process control from forging to grinding
Traceable raw materials
Consistent dimensional accuracy
Custom clearance and tolerance options
This ensures stable batch-to-batch performance for distributors and OEM clients.
Application Value:
Compensates for shaft misalignment caused by thermal expansion
Reduces vibration and noise
Improves motor operational stability
Extends maintenance intervals
Especially suitable for medium-speed, long-shaft, or flexible-frame motor systems.
Application Value:
Handles uneven load and shaft deflection
Performs reliably under dusty environments
Compatible with sealed designs for contamination protection
Ideal for harvesters, conveyors, seeders, and field machinery.
Application Value:
Compensates housing misalignment
Supports long shaft runs
Reduces premature bearing wear
Commonly used in mining plants, cement factories, and logistics systems.
Application Value:
Absorbs minor shaft deflection
Ensures smooth rotation
Reduces vibration-induced damage
Suitable for medium-load continuous-duty systems.
Application Value:
Tolerates mounting inaccuracies
Improves equipment stability
Reduces installation precision requirements
Engineered for real industrial misalignment challenges
Designed for durability and operational stability
Flexible customization capability
Competitive cost-performance ratio
Reliable manufacturing capacity
We do not simply supply bearings — we provide dependable rotational solutions that enhance equipment performance and protect customer profitability.
We have found that many people would like to learn about the application technology and selection of Bearing but do not have suitable materials to read. Our team of engineers constantly exports technology on our download page and blog, which you can download for free.
Hi, I am Maxwell, I am an engineer in the field of bearing applications. I majored in mechanical and electromechanical engineering during college. After graduation, I worked for the top three "SKF" bearing companies in the world for ten years , during which I went to dozens of customers in different industries to help them solve problems in bearing applications; later I joined VKUKEN Bearing Manufacturing, and I will share bearing technical knowledge on this website from time to time. If you are a customer Please contact me to help you solve your problem; if you are also a technical expert in bearings, I am very willing to exchange technical knowledge about bearings with you.
