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Spring Washer DIN127 Teflon/PTFE

Spring Washer DIN127 Teflon/PTFE
Product Information
Teflon spring washers, also known as PTFE spring washers, are a popular and versatile type of washer used in various mechanical applications. These washers are made from a fluoro-polymer material called polytetrafluoroethylene (PTFE), which is a type of Teflon. The material is highly resistant to chemical and thermal degradation, making it an ideal choice for washers used in harsh environments.
The unique properties of Teflon spring washers make them highly desirable in many applications. Firstly, they provide excellent insulation against electrical and thermal conductivity. This makes them useful in applications where electrical or thermal insulation is important.
Teflon spring washers provide a high degree of uniform pressure and load distribution across the joint. They are designed with a spring-like shape that allows them to compress and deform under load, which enables them to absorb any shock or vibration that may occur during use. This property also makes them highly effective in reducing noise and preventing galling or corrosion of mating surfaces.
Another advantage of Teflon spring washers is their ability to maintain their properties over a wide range of temperatures. They are unaffected by temperatures ranging from -200°C to +260°C, making them ideal for use in extremely cold or hot environments. This is especially important in applications such as aerospace, where components need to operate in extreme temperature conditions.
In conclusion, Teflon spring washers are a highly versatile type of washer that offer many unique properties. They are resistant to chemicals and extreme temperatures, provide excellent insulation, and absorb shock and vibration effectively. As a result, they are used in a wide range of industries, including aerospace, automotive, chemical, and pharmaceutical. Whether you’re looking for a reliable solution for your industrial or commercial application, Teflon spring washers are a great choice.
Spring Washer Dimensions
| SPRING STEEL & HARDENED STEEL SPLIT LOCK WASHER DIMENSIONS | |||||||
|---|---|---|---|---|---|---|---|
| Bolts Size | A O.D. | B I.D. | T Mean Section Thickness (ti + to)/2 | W Section Width | ti – to Increase in Thickness (O.D. to I.D.) | ||
| Min | Max | Min | Max | ||||
| #6 | 0.250 | 0.148 | 0.141 | 0.31 | 0.047 | 0.0030 | 0.0015 |
| #8 | 0.293 | 0.174 | 0.167 | 0.040 | 0.055 | 0.0036 | 0.0018 |
| #10 | 0.334 | 0.200 | 0.193 | 0.047 | 0.062 | 0.0040 | 0.0020 |
| 1/4″ | 0.487 | 0.260 | 0.252 | 0.062 | 0.109 | 0.0070 | 0.0035 |
| 5/16″ | 0.583 | 0.322 | 0.314 | 0.078 | 0.125 | 0.0080 | 0.0040 |
| 3/8″ | 0.680 | 0.385 | 0.377 | 0.094 | 0.141 | 0.0090 | 0.0045 |
| 7/16″ | 0.776 | 0.450 | 0.440 | 0.109 | 0.156 | 0.0100 | 0.0050 |
| 1/2″ | 0.869 | 0.512 | 0.502 | 0.125 | 0.171 | 0.0110 | 0.0055 |
| 9/16″ | 0.965 | 0.574 | 0.564 | 0.141 | 0.188 | 0.0120 | 0.0060 |
| 5/8″ | 1.072 | 0.640 | 0.628 | 0.156 | 0.203 | 0.0130 | 0.0065 |
| 3/4″ | 1.264 | 0.765 | 0.753 | 0.188 | 0.234 | 0.0150 | 0.0075 |
| 7/8″ | 1.455 | 0.890 | 0.878 | 0.219 | 0.266 | 0.0170 | 0.0085 |
| 1″ | 1.647 | 1.015 | 1.003 | 0.250 | 0.297 | 0.0190 | 0.0095 |
| 1-1/8″ | 1.838 | 1.144 | 1.129 | 0.281 | 0.328 | 0.0210 | 0.0105 |
| 1-1/4″ | 2.028 | 1.272 | 1.254 | 0.312 | 0.359 | 0.0230 | 0.0115 |
| 1-3/8″ | 2.210 | 1.399 | 1.379 | 0.344 | 0.391 | 0.0250 | 0.0125 |
| 1-1/2″ | 2.409 | 1.524 | 1.504 | 0.375 | 0.422 | 0.0270 | 0.0135 |
Common Fastener Materials
Fasteners are fabricated from a variety of materials. These options include metals and polymers. Stainless steel offers strength and corrosion resistance. While polymer options have less strength than stainless, they are a good choice for resisting chemicals. The most common materials are:
- Stainless steel
- Alloy steel
- Low carbon steel
- Medium carbon steel
- Titanium
- Polymers, such as nylon
Finish Options
The use of heat treatments and application of various finishes, also known as “plating,” affects the look and performance of fasteners. Finishes provide material stability and protect the fasteners from corrosion and rust. Below are some common heat treatment and finish benefits:
- Zinc coating – Most common, low cost, resists corrosion and rust
- Galvanized – Superior corrosion protection, anti-seize, higher upfront investment
- Stainless – Great for humid environments, strong, ideal for electrical or mechanical uses
- Black – Adds color, provides better grip, deflects light
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