What are the bearing type codes for thrust bearings?
Table 6-1 Bearing series code
| Bearing type | Bearing series code | Dimension series code |
|---|---|---|
| Diameter series | ||
| Spherical roller bearing | 223 | 3 |
| Single direction thrust ball bearing | 511 | 1 |
| 512 | 2 |
What is thrust load on bearing?
A thrust bearing, a type of rotary bearing, rotates between parts reducing friction and is designed to support an axial load (mostly in low-speed applications). It is the axial bearing that permits rotation between parts. As a global leader in the bearing industry, BMC provides custom solutions to lead your industry.
What does the D mean on a bearing number?
The first digit indicates the width or height series (dimensions B, T or H). The second digit identifies the diameter series (dimension D). The last two digits of the basic designation identify the size code of the bearing bore. The size code multiplied by 5 gives the bore diameter (d) in mm.
What does DD mean on bearing?
Other suffixes from various brands
| Meaning | SKF | NSK |
|---|---|---|
| Deep groove ball bearing with d <10mm and contact seal on one side | RS1 | D |
| Deep groove ball bearing with d <10mm and contact seal on both sides | 2RS1 | DD |
| Deep groove ball bearing with contact seal on one side | RS1 | DU |
| Extra capacity design | E | E |
Why do thrust bearings fail?
The causes of a thrust bearing failure can be traced to a single problem or a combination of problems. Naturally, improper assembly—selecting the wrong thrust bearing thickness, contamination during assembly, etc. —can lead directly to thrust bearing failure.
Which bearing is used for high rpm?
Radial Ball bearings can support moderate radial loads and moderate axial loads (parallel to the shaft). They can operate at high speeds (400,000 RPMs and higher).