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TUFNOL Rolled Laminated Fabric Tubes 

Cotton fabric laminate

Medium weave cotton/phenolic resin laminated plastic tubes

(SRBF - Synthetic resin Bonded Fabric)

Laminated cotton fabric tubes.

TUFNOL Rolled Laminated cotton fabric tubes were developed to complement the range of moulded tubes.  RL tubes have good mechanical strength, low water absorption and are resistant to weathering and to chemical attack by mild acids and alkalis. They are most commonly used to manufacture mechanical and wear resistance components for a wide range of engineering applications.  They are strong and rigid, with good bursting strength and excellent wear resistance in lubricated applications.

Three grades are available:

Grade RL F/1 – A fine weave fabric grade with good electrical and mechanical qualities.  Machines well and is suitable for finer and more intricate components

Grade RL F/2 – A fairly fine weave grade, developed mainly for its good mechanical strength, but suitable for low voltage electrical applications.

Grade RL F/3 – A medium weave grade giving improved wear resistance where surface finish and intricate machining are not required.  Suitable for low voltage electrical applications.


What are TUFNOL RL Cotton Fabric tubes used for?

These materials are used for many applications where strong, rigid tubes are required for the manufcture of cylindrical components.  Items include mechanical or wear resistant components, such as wear rings for hydraulic rams, lubricated bearings or ball race cages.  Electrical insulation components are also made.


TYPES AVAILABLE

 

Tubes

 

Grade RL F/1     – natural colour

Yes

Grade RL F/2     – natural colour

Grade RL F/2     – molybdenum disulphide                                         impregnated

Yes

Yes

Grade RL F/3     – natural colour

Yes

 

 

Minimum order quantities may apply.


SPECIFICATIONS for TUFNOL RL Cotton Fabric Tubes

 

BRITISH STANDARDS

Current Standards

Recent Standards (now obsolete)

Grade RL F/1 tube

BS EN 61212-3-1 Type PF CC 21

BS 6128 Part 8 Type PF CC 81

Grade RL F/2 tube

BS EN 61212-3-1 Type PF CC 22

BS 6128 Part 8 Type PF CC 82

Grade RL F/3 tube

BS EN 61212-3-1 Type PF CC 23

BS 6128 Part 8 Type PF CC 82 & 83

PHYSICAL PROPERTIES

TUFNOL RL Cotton Fabric Tubes

 

PROPERTY

Grade RL F/1

TYPICAL RESULT

Grade RL F/2

TYPICAL RESULT

Grade RL F/3

TYPICAL RESULT

 

UNITS

Axial compressive strength

160

150

150

MPa

Cohesion between layers

150

150

130

MPa

Water absorption

2.6

2.9

3.1

mg/cm2

Insulation resistance after immersion in water

3 x108

1 x108

8 x107

ohms

Loss tangent at 1 MHz

-

-

-

-

Permittivity at 1MHz

-

-

-

-

Axial electric strength in oil at 90ºC

40

30

30

kV

Electric strength normal to axis in oil at 90ºC

 

 

 

 

- 1.6mm wall

-

-

-

MV/m

- 3.0mm wall

-

-

-

MV/m

Relative density

1.25

1.25

1.25

-

Maximum working temperature**

 

 

 

 

- continuous

120

120

120

ºC

- intermittent

130

130

130

ºC

Thermal classification

Class E

Class E

Class E

-

Test methods as BS EN 61212-2, where applicable.

 

**Users of highly stressed components at temperatures approaching the maximum are recommended to seek further advice from TUFNOL Ltd.

 

A full machining service is available from Tufnol for this and many other engineering plastics and composites.

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