GGB EP64 Cylindrical bushes

EP™64 Self-Lubricating Engineered Plastic Bearings

CHARACTERISTICS

  • Good performance in lubricated or marginally lubricated applications
  • Excellent flow erosion and cavitation resistance
  • Corrosion resistant in humid/saline environments
  • Suitable for very high temperature applications
  • Very good weight performance ratio
  • Within injection moulding tool feasibility unlimited dimensions and design features
  • Compliant to EVL, WEEE and RoHS specifications

availability

Bearing forms made to order: cylindrical bushings, flanged bearings, thrust washers, sliding plates, half-bearings, customized bearing designs

STRUCTURE AND COMPOSITION

Thermoplastic compound material 

PEEK + Solid Lubricant + Fillers

MICROSECTION

 

 

 

PEEK +

Solid Lubricant  +

Fillers

OPERATING PERFORMANCE
Dry Good
Oil lubricated Very Good
Grease lubricated Very Good
Water lubricated Good
Process fluid lubricated Good after resistance testing

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

N/mm2

125

Operating temperature

Min

Max

°C

°C

- 100

290

Coefficient of linear thermal expansion   10-6/K 14
Dry      
Maximum sliding speed, U   m/s

1.0

Maximum pU factor

for AH/AC  =  5

for AH/AC  = 10

for AH/AC  = 20

N/mm2 x m/s

N/mm2 x m/s

N/mm2 x m/s

0.09

0.35

1.40

Coefficient of friction    

0.3 - 0.5

Recommendations      
Surface roughness, Ra

 

µm

0.1 - 0.5

Surface hardness   HV

> 450

STRUCTURE AND COMPOSITION

Thermoplastic compound material 

PEEK + Solid Lubricant + Fillers

MICROSECTION

 

 

 

PEEK +

Solid Lubricant  +

Fillers

OPERATING PERFORMANCE
Dry Good
Oil lubricated Very Good
Grease lubricated Very Good
Water lubricated Good
Process fluid lubricated Good after resistance testing

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

psi

18 000

Operating temperature

Min

Max

°F

°F

- 150

550

Coefficient of linear thermal expansion   10-6/F 8
DRY      
Maximum sliding speed, U   fpm

200

Maximum pU factor

for AH/AC  =  5

for AH/AC  = 10

for AH/AC  = 20

psi x fpm

psi x fpm

psi x fpm

2 500

10 000

40 000

Coefficient of friction, f  

0.3 - 0.5

RECOMMENDATIONS      
Surface roughness, Ra

 

μin

4 - 20

Surface hardness   HV

> 450

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