Designation system for inch roller bearing units
The designations of SKF roller bearing units follow a system that consists of a basic designation with or without one or more prefixes and/or suffixes.
Example
| FSYE 2 7/16 NH -118
| where | F = |  |
| SYE = |  |
||
| 2 7/16 = |  |
||
| NH -118 = |  |
Applicable options
| Prefix
|
| – | For pillow block units: two-bolt base |
| F | For pillow block units: four-bolt base |
| Series |
| SYE | Pillow block unit |
| SYR | Pillow block unit |
| FYE | Square flange unit |
| FYR | Round flange unit |
| FYRP | Piloted flange unit |
| Size identification |
| ... | Shaft diameter [in.] |
| Suffixes1) | |
| N | SKF ConCentra | |
| H | Locating bearing unit | |
| Y | Closed end (end plug supplied) | |
| -3 | Radial shaft seal (for collar-mount units) | |
| -18 | Labyrinth seal (for collar-mount units) | |
| -118 | Labyrinth seal (for SKF ConCentra units) | |
- 1)When multiple suffixes are used, they are listed in the same order as shown here.
