GGB-CBM Cylindrical bushings
GGB-CBM® Thin Walled Bimetal Bearings made by Metallurgic Powder
CHARACTERISTICS
- Self-lubricating and maintenance-free bearings with homogeneously distributed solid lubricant (graphite) in the sliding layer
- High load capacity and suited to temperatures from -150°C up to 280°C
- Different metallic backings are available: stainless steel, carbon steel or bronze
- Lead-free alloys are available
availability
Bearing forms made to order: cylindrical bearings, flanged bearings, axial washers, sliding plates, half shells, axial and radial segment rings, spherical plain bearings, customized bearing formsSTRUCTURE AND COMPOSITION
Thin walled powder metallurgical bimetal bearing material 
MICROSECTION
Solid Lubricant:
Graphite
Metallic Matrix:
Bronze based
Backing:
Stainless Steel,
Carbon Steel or
Bronze
| OPERATING PERFORMANCE | |
| Dry | Good |
| Oil lubricated | Good |
| Grease lubricated | Good |
| Water lubricated | Good |
| Process fluid lubricated | Depending on fluid |
GGB-CBM® bearing material is known by various names such as CBM or GGB CBM. Buying a GGB-CBM® bearing from GGB or its authorized distributors guarantees that you do not receive a counterfeit product.
BEARING PROPERTIES
| GENERAL | Unit | Value | |
| Maximum load, p |
Static Dynamic |
N/mm2 N/mm2 |
260 - 280 80 - 150 |
| Operating temperature |
Min Max |
°C °C |
- 150 280 |
|
Coefficient of linear thermal expansion |
|
10-6/K |
12 - 16 |
| DRY | |||
| Maximum sliding speed, U | m/s |
0.3 - 0.5 |
|
| Maximum pU factor |
|
N/mm2 x m/s |
0.5 - 1.0 |
| Coefficient of friction f |
0.10 - 0.20 |
| Water lubricated | |||
| Coefficient of friction f |
0.10 - 0.15 |
| Recommendations | |||
| Surface roughness, Ra |
|
µm |
0.2 - 0.8 |
| Surface hardness | HB |
> 180 - > 250 |
Bearing properties and recommendations depending on GGB-CBM™ material. This information is available by downloading
the GGB-CBM™ brochure.
STRUCTURE AND COMPOSITION
Thin walled powder metallurgical bimetal bearing material
MICROSECTION
Solid Lubricant:
Graphite
Metallic Matrix:
Bronze based
Backing:
Stainless Steel,
Carbon Steel or
Bronze
| OPERATING PERFORMANCE | |
| Dry | Good |
| Oil lubricated | Good |
| Grease lubricated | Good |
| Water lubricated | Good |
| Process fluid lubricated | Depending on fluid |
GGB-CBM® bearing material is known by various names such as CBM or GGB CBM. Buying a GGB-CBM® bearing from GGB or its authorized distributors guarantees that you do not receive a counterfeit product.
BEARING PROPERTIES
| GENERAL | Unit | Value | |
| Maximum load, p |
Static Dynamic |
psi psi |
38 000 - 41 000 12 000 - 22 000 |
| Operating temperature |
Min Max |
°F °F |
- 240 540 |
|
Coefficient of linear thermal expansion |
|
10-6/F |
7 - 9 |
| DRY | |||
| Maximum sliding speed, U | fpm |
60 - 100 |
|
| Maximum pU factor |
|
psi x fpm |
14 000 - 29 000 |
| Coefficient of friction f |
0.10 - 0.20 |
| WATER LUBRICATED | |||
| Coefficient of friction f |
0.10 - 0.15 |
| RECOMMENDATIONS | |||
| Surface roughness, Ra |
|
µin |
8 - 32 |
| Surface hardness | HB |
> 180 - > 250 |
Bearing properties and recommendations depending on GGB-CBM™ material. This information is available by downloading
the GGB-CBM™ brochure.
