**SKF Spherical Roller Bearing Code Explanation**
Home > Bearing Knowledge > SKF Spherical Roller Bearing Code
This article provides an in-depth explanation of the code system used by SKF for spherical roller bearings. These codes help identify specific features and characteristics of the bearings, such as clearance, sealing, material, and special applications.
The suffixes used in SKF spherical roller bearing codes include:
- **C2**: Radial clearance is smaller than standard.
- **C3**: Radial clearance is larger than standard.
- **C4**: Radial clearance is greater than C3.
- **C5**: Radial clearance is greater than C4.
- **C08**: Accuracy meets ISO class 5.
- **C083**: C08 + C3.
- **C084**: C08 + C4.
- **2CS**: Double-sided NBR seal with steel cage. The outer ring has a groove and three holes, covered with a plastic band.
- **2CS2**: Double-sided FPM seal with steel cage. Same structure as 2CS2.
- **2CS5**: Double-sided HNBR seal with steel cage. Similar to 2CS2.
- **HA3**: Hardened outer ring with hardened inner ring.
- **K**: Tapered bore, ratio 1:12.
- **K30**: Tapered bore, ratio 1:30.
- **P5**: Precision meets ISO class 5.
- **P6**: Precision meets ISO class 6.
- **P62**: P6 + C2.
- **VA405**: Oscillating machinery bearing with hardened cage.
- **VA406**: VA405 with PTFE coating on the inner hole.
- **VE552(E)**: Outer ring with threaded holes for lifting equipment. E indicates the presence of eye bolts.
- **VE553(E)**: Same as VE552, but with threaded holes on both sides.
- **VG114**: Hardened stamped steel cage.
- **VQ424**: Higher rotational accuracy than C08.
- **W**: No grooves or holes on the outer ring.
- **W20**: Three smooth holes on the outer ring.
- **W26**: Six smooth holes on the inner ring.
- **W33**: Groove and three holes on the outer ring.
- **W64**: Bearings marked with solid lubricant.
- **W77**: Same as W33, but with plug on the hole.
- **W513**: Combination of W26 and W33.
- **235220**: Hardened inner ring with spiral groove in the bore.
These codes are essential for selecting the right bearing for specific applications, especially in industrial and mechanical systems where precision, durability, and performance are critical.
If you're looking for more information on bearing types, materials, or maintenance, feel free to explore our related articles.
**Related Articles:**
- Analysis of Several Plastic Bearings
- SKF Roller Bearing Lubrication Methods
- How to Prevent Deformation in Cylindrical Roller Bearings
For more details, visit [China Bearing Network](http://www.chinabearing.net).
Previous: Use of Insert Roller Bearings
Next: Common Classification Methods for Rolling Bearings
LED Module
Our led module can use as the led string light, led effect light and led curtain for your led project. Iseeled company's led module have much more versions which include the round led module, rectangle led module, square led module, surface mount led module and embedded led module. You can design them according to your demand . It's 256 Brightness and full 24-bit color. The led string light is vivid and beautiful and widely used as decorative lighting for party, wedding, festival, Christmas etc. The ws2811 light can be made to fade in and out of millions of colors, flash or blink.
Photo show of LED Module:
Led Module,Led Effect Module Sign Light,Square Led Module,Led String Light
Shenzhen Iseeled Technology Co., Ltd. , https://www.iseeledlight.com