Spherical Plain Bearings Nomenclature (Part Numbering System)
Each spherical plain bearing series can be divided into a prefix (series), main bearing number (size), and suffixes (options). The main bearing number depicts the bearing’s bore nominal dimension in millimeters. The chart below describes the various prefixes and suffixes for each spherical plain bearing type supplied by AST Bearings.
Maintenance Type Spherical Plain Bearing Nomenclature
Below is the nomenclature used with AST Bearings' spherical plain bearings requiring maintenance (lubrication) series:
| Prefix | Suffix | Description |
| GE | Metric Standard Spherical Plain Bearing | |
| GEZ | Inch Standard Spherical Plain Bearing | |
| GEG | Metric High Load | |
| GEF | Thin Section Metric | |
| GEGZ | Inch High Load | |
| GEEM | Extended Inner Ring Sealed Metric | |
| GEEW | Extended Inner Ring Metric | |
| GEWZ | Extended Inner Ring Inch | |
| GEC | 2pc Outer Ring W/ Retaining Rings | |
| GEK | 2pc Outer Ring W/ Ret. Rings & Chrome Plated Inner | |
| GEBJ | Metric Carbon Steel Outer Pressed Around Inner | |
| GEFZ | Inch Carbon Steel Outer Pressed Around Inner | |
| GEBK | Bronze Lined Outer Race | |
| E | No Lube Holes Or Grooves | |
| ES | Lube Holes And Annular Groove | |
| S | Chromium Plating On Inner Ring | |
| -2RS | Double Sealed | |
| XS | 2 Pc. Outer Ring With Retaining Rings | |
| HS/K | Spacer Between 2pc. Outer Ring |
Numbering Example:
This is a metric standard spherical plain bearing, 80 mm bore, with Lube holes and annular groove, and double seals.
Maintenance Free Spherical Plain Bearing Nomenclature
Below is the nomenclature used with AST Bearings' maintenance-free spherical plain bearings series:
|
Prefix
|
Suffix | Description |
|
GE
|
Metric Standard Spherical Plain Bearing
|
|
|
GEBJ
|
Thin Section Metric
|
|
|
GEC
|
2pc Outer Ring W/ Retaining Rings
|
|
|
GEFZ
|
Inch Standard Spherical Plain Bearing
|
|
|
GEG
|
Metric High Load
|
|
|
GEH
|
Metric High Load 2pc Outer W/Screws
|
|
|
GEZ
|
Inch W/ Double Seals
|
|
| -2RS |
Double Sealed
|
|
| C |
PTFE Composite Sliding Surface
|
|
| ET |
Fractured Outer
|
|
| ET/X |
Fractured Stainless Outer
|
|
| HC |
2pc Carbon Outer W/Screws, PTFE Composite
|
|
| HF/Q |
2pc Outer W/ Screws, Cu Alloy Inner
|
|
| HT |
2pc Carbon Outer W/Screws, PTFE Fabric
|
|
| N |
PTFE Plastic Sliding Surface
|
|
| S |
Annular Grooves And Lube Holes In Inner Ring
|
|
| T |
PTFE Fabric Sliding Surface
|
|
| XF/Q |
2pc Outer W/ Retaining Rings, Cu Alloy Inner
|
|
| XT |
2pc. Outer W/ Retaining Rings
|
|
| XT/X |
2pc Stainless Outer W/ Retaining Rings
|
Numbering Example:
This is a metric standard spherical plain bearing, 50 mm bore, with PTFE composite sliding surface, and double seals.