1. Quick Details of seal 707-39-30010 :

2. 707-99-30010 parts on group :

3. 707-39-30010 picture:

4. Service ring part no. :

5. FAQ

Q: This picture looks like wood. Is it made of wood?

A: That's an excellent question.The material with that "wood-like" texture is not actual wood, but is made from high-performance engineering materials. They are primarily classified into the following categories:

• Polytetrafluoroethylene (PTTE) with added bronze powder/graphite/molybdenum disulfide:Characteristics: This is currently one of the most mainstream and highest-performance materials. PTFE (Teflon) itself has an extremely low coefficient of friction and excellent self-lubricating properties. The addition of bronze powder improves thermal conductivity and load-bearing capacity. Adding graphite or molybdenum disulfide further enhances self-lubrication, particularly under poor lubrication conditions.Appearance: Typically dark gray or black in color, with a dense texture, resembling black laminated board.
• Thermosetting resin-impregnated fabric:Characteristics: This is made by laminating fabrics such as cotton, linen, or synthetic fibers (like polyester) impregnated with phenolic resin or epoxy resin. This material offers high hardness, excellent wear resistance, and strong load-bearing capacity.Appearance: This material most closely resembles the "wood" you described. It is usually dark brown, yellowish-brown, or black in color, with a distinct laminated texture, similar to electrical laminated insulation board or cloth wheels.
• Polyoxymethylene (POM):Characteristics: Commonly known as "Delrin" or "Acetal," it possesses high rigidity and hardness, along with good sliding properties and wear resistance. It is relatively low-cost and is widely used in some standard cylinder applications.Appearance: Usually white or light beige in color, with a uniform texture, lacking the layered feel of the fabric-based materials.

Q:The material of the ring seal is a mixture of PTFE and fiberglass. What are its advantages?

A: the PTFE and fiberglass mixture creates a synergistic material that is far more capable than either component alone, offering a unique combination of strength, durability, and resistance to extreme environments.

I can explain it to you briefly in a few points, and you will understand why the prices of products of the same size vary so much.

• Combined Advantage: It has the advantages of both materials.The surface is extremely easy to clean, prevents material buildup, and allows for the easy release of substances. This is crucial for applications like food processing belts, release sheets, and architectural membranes where dirt and snow need to slide off.
• This material can withstand high temperatures and operate in lower environments, greatly improving the working life of the machine.

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