Corrosion Resistance Tungsten Carbide Bushing for Carbide Trim Choke Valve

Corrosion Resistance Tungsten Carbide Bushing for Carbide Trim Choke Valve

PB7 is the substitute of and parallels in performance with abroad iglidur W300 . The most common plastic bearing material. It is suitablefor the applications with working temperature not higher than 80℃.Itis the prefereable material with good wear resistanceand economic efficient for a new designation.
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Product Details

We can easily state with absolute certainty that for such high-quality at such price ranges we're the lowest around for Iron Base Graphite Bearing, SAE 799 Bimetallic Bearing, Bronze Based Low Frication Bushing. Our new development strategy has important guiding significance for the company's business and product innovation, and the improvement of profitability and international competitiveness. Our company will strictly abide by our promises, be proactive, further increase investment in research and development, and develop better products to share with users. We consider that market competition should follow the principles of health and fairness to promote higher efficiency of enterprises and lower cost of goods, which will help stimulate new innovations and products.

1.Product Feature

PB7 is the substitute of and parallels in performance with abroad iglidur W300 . The most common plastic bearing material. It is suitablefor the applications with working temperature not higher than 80℃.Itis the prefereable material with good wear resistanceand economic efficient for a new designation.
· Continuous working temperature :-40 ℃~ 80 ℃,
· Very common, suitable for most of average and low load
· Maintenance-free dry operation,
· Light wear against different shaft materials,
· Low friction.


2.Product Technical Data:

PB Standard Material Technical Data

Material Properties

Testing Method

Unit

PB3

PB5

PB3M

PB7

PB13

Density

IS01183

g/cm3

1.46

1.44

1.15

1.25

1.48

 Color

 

 

Dark        Grey

Black

Dark        Grey

Cream

Yellow

Dynamic friction /steel(dry)

 

 

0.08-0.18

0.09-0.25

0.09-0.30

0.09-0.20

0.05-0.15

Max. PV (dry) 

 

N/mm2×m/s

0.5

1.5

0.2

0.5

0.4

Max. rotating velocity

 

m/s

1.0

1.5

0.8

1.0

1.5

Max. oscillating velocity

 

m/s

0.7

1.1

0.6

0.7

1.1

Max. linear velocity

 

m/s

4.0

5.0

2.5

4.0

8.0

Tensile strength

IS0527

MPa

200

170

110

120

75

 Compressive  strength(Axial)

 

MPa

80

100

50

60

60

E-module

IS0527

MPa

7700

7900

2500

3500

2400

Max. static pressure of the surface, 20℃

 

MPa

80

150

20

60

35

Shore hardness

IS0 868

D

81

85

79

77

74

Continuous work temperature

 

-40/+130

-100/+250

-40/+80

-40/+100

-50/+90

Short-time work temperature

 

-40/+220

-100/+315

-40/+170

-40/+180

-50/+120

Thermal conductivity

ASTME1461

W / m×k

0.25

0.6

0.25

0.2

0.25

Linear coef. of thermal expansion

ASTMD696

K-1×10-5

9

5

10

9

9

RH50/23℃ Moisture absorption RH50/23℃

ASTMD570

%

0.7

0.1

1.4

1.3

0.2

Max. water absorption, 23℃

 

%

4.0

0.5

7.6

6.5

1.2

Flammability

UL94

 

HB

V0

HB

HB

HB

Volume resistivity

IEC60093

。cm

>1013

>108

>1012

>1012

>1013

Surface resistivity

IEC60093

>1011

>107

>1011

>1012

>1012


Deliver Shipping Term

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Different product packaging methodsHigh-intensity carton packagingPalletized packaging library
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Professional placementAir freightShipping


Certification:

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We design a complete set of Corrosion Resistance Tungsten Carbide Bushing for Carbide Trim Choke Valve for related enterprise and individual users, and constantly strive to meet the diverse needs of customers. For anyone who wants to know about our company and products, please contact us as soon as possible. We will wholeheartedly provide you with the excellent services and products. We will continue to devote ourselves to market & product development and build a well-knit service to our customer to create a more prosperous future.
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