GGB EP12 Self-lubricating engineered plastic bushings with unlimited dimensions

GGB EP12 Cylindrical bushes

EP™12 Self-Lubricating Engineered Plastic Bushings

CHARACTERISTICS

  • Good bushing performance in dry working conditions
  • Good bushing performance in lubricated or marginally lubricated applications
  • Corrosion resistant in humid/saline environments
  • Very good price performance ratio
  • Very good weight performance ratio
  • Within injection moulding tool feasibility unlimited dimensions and design features
  • Compliant to EVL, WEEE and RoHS specifications

availability

Forms of bearings Custom: Cylindrical bushings, flange bushings, thrust washers, bushings, plates, special bearings

STRUCTURE AND COMPOSITION

Thermoplastic compound bushing material 

POM + Solid Lubricant

MICROSECTION

 

 

 

POM +

Solid Lubricant

 

OPERATING PERFORMANCE
Dry Very good
Oil lubricated Good
Grease lubricated Good
Water lubricated Fair
Process fluid lubricated Good after resistance testing
For Superior performance
Water lubricated EP22

 

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

N/mm2

65

Operating temperature

Min

Max

°C

°C

- 40

125

Coefficient of linear thermal expansion   10-6/K 120
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

0.04

0.09

0.18

Coefficient of friction    

0.18 - 0.30

Recommendations      
Surface roughness, Ra

 

µm

0.1 - 0.5

Surface hardness   HV

> 200

 

STRUCTURE AND COMPOSITION

Thermoplastic compound bushing material 

POM + Solid Lubricant

MICROSECTION

 

 

 

POM +

Solid Lubricant

 

OPERATING PERFORMANCE
Dry Very good
Oil lubricated Good
Grease lubricated Good
Water lubricated Fair
Process fluid lubricated Good after resistance testing
For Superior performance
Water lubricated EP22

 

BEARING PROPERTIES

GENERAL   Unit Value
Maximum load, p

Static

psi

9 500

Operating temperature

Min

Max

°F

°F

- 40

260

Coefficient of linear thermal expansion   10-6/F 67
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

1 100

2 500

5 100

Coefficient of friction, f  

0.18 - 0.30

RECOMMENDATIONS      
Surface roughness, Ra

 

μin

   4 - 20

Surface hardness   HV

 > 200

 

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