40% Bronze PTFE Guide Ring Wear Strip Gst with Brown Color for Hydraulic Elements

GST

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1.Application and properties

Suitable for guiding the piston and piston rod in hydraulic and pneumatic cylinders, providing support, isolation, and guidance. Guide bands with thickness equal to or greater than 2mm can provide double-sided embossed products. The embossed structure is conducive to forming lubrication micro-cavities, improving microscopic lubrication and helping to embed small foreign objects to protect the sealing system.

It can be used in special working conditions such as extremely high speed, extremely low speed, and micro-displacement. It can also be used for guiding and positioning in rotating rod seals.

2.Standard material

Filled PTFE

3.Working conditions

Working conditions

Diameter

Range

Temperature

Range°C

Speed

Medium

Custom as Required

-200～250℃

15m/s

Hydraulic oil,

flame retardant liquid,

water and others

4. Marking method

Mark it with product size

For example: Guide tape Width 20mm and Thickness 2.5mm can be marked ad GST20*2.5

5. Guide tape width calculation

Overall width≥(Maximum radial load×Safety factor)÷(Carrying capacity at a given temperature and speed×Rod/Bore Diameter)

The carrying capacity of the guide ring is the anti-squeezing capacity of the guide ring, that is, the anti-biased load capacity of the cylinder. It is directly related to the speed and temperature of the cylinder movement, and the carrying capacity will decline rapidly if the speed is high or the temperature is high. At room temperature (speed 1.0m/s), the carrying capacity of DMS's PTFE guide ring can be 15MPa, and when the temperature is increased by 20°C, the carrying capacity is reduced by about 1/4 to 1/3.

If the width of one guide belt is insufficient, multiple strips of the same width or different widths can be used together. But if multiple guide rings are used, the carrying capacity should have a loss rate, which is recommended to take 0.9

6. Guide tape Length calculation

Piston guide tape: Overall length=(Piston diameter D-2.5)×3.142-0.04×D

Rod guide tape: Overall length =(Rod diameter d+2.5)×3.142-0.04×d

7. Related Dimensions

R1=0.2～0.3,R2=0.3～0.5;

8. Dimension tolerance

In order to facilitate installation and have appropriate guiding capability, the thickness tolerance of the guiding belt is negative, and the numerical value should not be greater than 2% of its thickness, and the width tolerance should also be negative, and the numerical value is 1-3% of the width

9.Related Dimensions:

Standard thickness of product

Thickness W

1.0

1.5

1.55

2.0

2.5

3.0

4.0

5.0

6.0

The products of various thickness could be provided

Length of whole roll

Thickness	1.0	1.5	2.0	2.5	3.0	4.0	5.0	6.0
Length of whole roll (m)	55	35	27	22	18	13	10	8

Above data only for your reference, it shall follow the actual products

Standard groove width

Groove width L

2.5

3.2

4.2

5.6

6.0

6.3

8.1

9.7

The products of various width could be provided

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