GGB MLG Cylindrical bushes

MLG Self-Lubricating Fiber Reinforced Composite Bearing

CHARACTERISTICS

  • Value engineered filament wound bearing for lighter duty applications
  • High load capacity
  • Good misaligment resistance
  • Excellent shock resistance
  • Good friction and wear properties
  • Good chemical resistance

availability

Bearing forms available in standard dimensions
  • Plain cylindrical bushes
Bearing forms made to order: cylindrical bushes with non-standard lengths and wall thickness, flanged bearings, hexagonal and square bores, liner on outer diameter, customized bearing designs

STRUCTURE AND COMPOSITION

Fiber and Epoxy Resin Composite Material 

Continuous wound PTFE and high-strength fibers encapsulated in an internally lubricated, high temperature filled epoxy resin sliding layer + continuous wound fiberglass encapsulated in a high temperature epoxy resin

MICROSECTION

 

 

Sliding layer

 

 

Backing

 

OPERATING PERFORMANCE
Dry Very Good
Oil lubricated Good
Grease lubricated Poor
Water lubricated Fair
Process fluid lubricated Fair
For superior performance
Grease lubricated

DX / DX10

Water lubricated

HPF / HPM

Process fluid lubricated

GAR-FIL

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

Dynamic

N/mm2

N/mm2

210

140

Operating temperature

Min

Max

°C

°C

- 195

160

Dry      
Maximum sliding speed, U   m/s

0.13

Maximum pU factor

 

N/mm2 x m/s

1.05

Coefficient of friction    

0.05 - 0.30 *

Recommendations      
Shaft surface roughness, Ra

 

µm

0.15 - 0.40

Shaft surface hardness   HB

> 350

* Depending on operating conditions

STRUCTURE AND COMPOSITION

Fiber and Epoxy Resin Composite Material 

Continuous wound PTFE and high-strength fibers encapsulated in an internally lubricated, high temperature filled epoxy resin sliding layer + continuous wound fiberglass encapsulated in a high temperature epoxy resin

MICROSECTION

 

 

Sliding layer

 

 

Backing

 

OPERATING PERFORMANCE
Dry Very Good
Oil lubricated Good
Grease lubricated Poor
Water lubricated Fair
Process fluid lubricated Fair
FOR SUPERIOR PERFORMANCE
Grease lubricated

DX / DX10

Water lubricated

HPF / HPM

Process fluid lubricated

GAR-FIL

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

Dynamic

psi

psi

30 000

20 000

Operating temperature

Min

Max

°F

°F

- 320

320

DRY      
Maximum sliding speed, U   fpm

25

Maximum pU factor

 

psi x fpm

30 000

Coefficient of friction    

0.05 - 0.12 *

RECOMMENDATIONS      
Shaft surface roughness, Ra

 

µin

6 - 16

Shaft surface hardness   HB

> 350

* Depending on operating conditions

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