PTFE=Polytetrafluoroethylene 聚四氟乙烯
UHMW-PE=(Utra High Molecular Weight Polyethylene) 超高分子量聚乙烯
HG=Phenolic Resin with Fabric Reinforcement 酚醛夾布
隨著溫度的增加，PTFE 材料所能承受的表面載荷將降低，其承載能力實(shí)際上取決于工作溫度，一般而言， 不應(yīng)超過 150℃。
如使用溫度低于 0℃，請先咨詢我方
*With the PTFE materials it must be taken into account that the permissible surface pressure decreases with increasing temperatures. The load bearing ability for dynamic applications in practice is dependent primarily on the operating temperature. This should therefore generally not exceed 150°C. For temperatures below 0°C
consult technical support.
預(yù)切好的導(dǎo)向環(huán)在安裝后會留有一定的間隙“Z”，這 是基于以下考慮：
--受溫度的影響，導(dǎo)向環(huán)有一定的線形膨脹
--避免困壓
The linear length of DL GST is calculated such that a gap “Z” is created at the ends of the strip after installation.
This is required for the following reasons:
-Compensation of the linear expansion of the strips due to the effects of temperature
-Avoidance of intermediate pressures and entrained Pressures.
產(chǎn)品的類型訂貨時(shí)請注明
--切口類型
斜切口是標(biāo)準(zhǔn)形式，直切口和Z型切口需訂制
--棱邊的倒角形式
無倒角是標(biāo)準(zhǔn)形式。我們可提供棱邊為圓角或倒角的形式， 這種設(shè)計(jì)可防止產(chǎn)品與
溝槽圓角的干涉，也有利于安裝。我們可提供成卷的導(dǎo)向帶和預(yù)切好的導(dǎo)向環(huán)。
Forms of Supply
Two characteristics must be observed with respect to the forms of supply forDL
GST.
-Type of cut
The Angle Cut is the most frequently used standard type of cut. Rings with other
types of cut – Straight Cut and Step Cut are available on request.
-Design type
DL GST has a rectangular cross-section with rounded or chamfered edges, thus
preventing impermissible edge forces in the corner radii of the grooves.The
chamfers also serve to facilitate installation, e.g. when inserting into the cylindrical
tube or guide bush.
The ring ends are finished as standard with an angle cut.
Strip material is available in rolls or precut to size to fit with the gap necessary.
壓花
厚度等于或大于2mm的PTFE導(dǎo)向帶，可提供壓花產(chǎn)品。壓花結(jié)構(gòu)是在帶子的滑動表面
帶有微小的潤滑微坑，有利于形成潤滑薄膜，改善微觀潤滑， 同時(shí)有助于嵌埋微小異
物，保護(hù)密封系統(tǒng)。鑒于導(dǎo)向帶可用于孔用和軸用導(dǎo)向，一般制作成雙面壓花。
Empaistic structure
GST up to and including 2 mm radial thickness in PTFE materials are as standard
supplied with Empaistic structure on the sliding surfaces.
This structure comprises small lubricant pockets on the surface which improve
the initial lubrication and promote the formation of a lubricant film. They also
help to protect the seal system through their ability to embed any foreign particles.
In order to be able to use the strip material for both piston and piston rod guides,
the rings have this same empaistic structure on both sides.
| 自行裁切帶子時(shí)，請參考以下公式： |
 |
| 工作溫度 120° C 以下 |
| 工作溫度 120° C 以上 |
When ordering strips off-the-roll for manufacturing of DL GST in your own works,
the length of the strip can be calculated using the following formulae:
For Piston:孔用L=cx(D-W)-k[mm]
For Rod:軸用：L = c x (d + W) - k [mm]
D=Bore diameter 孔徑 [mm]
d=Rod diameter 軸徑 [mm]
W=Ring thickness 產(chǎn)品厚度[mm]
c = 3.11 material factor 材料因子
k=0.8 for operating temperatures up to 120° C.
k=2.0 only for applications > 120° C.
Length of per PTFE Strip Roll 整卷長度
| Thickness 厚度 |
1 |
1.5 |
2 |
2.5 |
3 |
4 |
5 |
6 |
| Length of Roll (M) 整卷長度（米）* |
55 |
35 |
27 |
22 |
18 |
13 |
10 |
8 |
*For Reference only. There may have minimum difference. 僅供參考。實(shí)際供貨時(shí)可能會有細(xì)小差別
Order Example for standard version: 訂貨范例
Groove Width L2= 20 mm; Ring Thickness W=2.5 mm; Material = PTFE, Order in roll
槽寬L2=20mm，帶子厚度W=2.5mm, 材料為PTFE，成卷Order Code訂貨號: GST 20 x 2.5
For special design such as Empaistic structure, Chamfer edge, Split ring, Special material and/or cut type, please indicate.
特殊要求如壓花、倒角、預(yù)切、特殊材料、切口類型，訂貨時(shí)請予以注明
Suitable for Groove Width 標(biāo)準(zhǔn)槽寬
Further sizes are available 可提供各種寬度產(chǎn)品
| Groove Width 槽寬L2 |
2.5 |
3.2 |
4 |
4.2 |
5.6 |
6 |
6.3 |
8.1 |
9.7 |
10 |
12 |
15 |
20 |
25 |
30 |
40 |
50 |
Available Ring Thickness 標(biāo)準(zhǔn)產(chǎn)品厚度
| Ring Thickness 產(chǎn)品厚度 W |
1 |
1.5 |
1.55 |
2 |
2.5 |
3 |
4 |
5 |
6 |
Further sizes are available 可提供各種厚度產(chǎn)品
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