GGB EP63 Cylindrical bushes

EP™63 Self-Lubricating Engineered Plastic Bearings

CHARACTERISTICS

  • Good bearing performance in dry working conditions
  • Good performance in lubricated or marginally lubricated applications
  • 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 available in standard dimensions
  • Plain cylindrical bushes
  • Plain flanged bushes
Bearing forms made to order: standard forms in special dimensions, thrust washers, half-bearings, sliding plates, customized bearing designs

STRUCTURE AND COMPOSITION

Engineered Plastic Bearing Material

PEEK + Solid Lubricant + Fillers

MICROSECTION

 

 

PEEK +

Solid Lubricant  +

Fillers

OPERATING PERFORMANCE
Dry Good
Oil lubricated Good
Grease lubricated Good
Water lubricated Fair
Process fluid lubricated Good after resistance testing
For superior performance
Water lubricated EP64

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

N/mm2

90

Operating temperature

Min

Max

°C

°C

- 100

290

Coefficient of linear thermal expansion   10-6/K 50
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

0.16

0.66

2.63

Coefficient of friction    

0.12 - 0.21

Recommendations      
Surface roughness, Ra

 

µm

0.1 - 0.5

Surface hardness   HV

> 200

STRUCTURE AND COMPOSITION

Engineered Plastic Bearing Material

PEEK + Solid Lubricant + Fillers

MICROSECTION

 

 

PEEK +

Solid Lubricant  +

Fillers

OPERATING PERFORMANCE
Dry Good
Oil lubricated Good
Grease lubricated Good
Water lubricated Fair
Process fluid lubricated Good after resistance testing
FOR SUPERIOR PERFORMANCE
Water lubricated EP64

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

psi

13 000

Operating temperature

Min

Max

°F

°F

- 150

550

Coefficient of linear thermal expansion   10-6/F  28
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

4 500

18 800

75 200

Coefficient of friction, f  

0.12 - 0.21

RECOMMENDATIONS      
Surface roughness, Ra

 

μin

4 - 20

Surface hardness   HV

> 200

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