Self-lubricating Graphite Gasket

Definition

It is an axial gasket made of copper alloy or carbon steel, with high-purity graphite columns embedded on the friction surface. It utilizes the solid lubrication property of graphite to achieve long-term stable operation without the need for oiling and with low friction.

Material Introduction
The base material is made of high-strength tin bronze (CuSn8) or carbon steel, with a hardness of HB 70-90 and excellent load-bearing capacity. The friction surface is evenly embedded with natural graphite with a purity of ≥ 99.9%, which continuously releases lubrication particles during the friction process, forming a continuous lubricating film, effectively protecting the friction surfaces. This structure combines the supporting rigidity of metal with the lubrication performance of graphite, and is suitable for harsh working conditions such as high temperatures, dust, and water splashing.

✅ Key Advantages
🔹 Graphite Inlay Structure
High-purity graphite (≥99.9%) is embedded in the copper alloy matrix, resulting in a friction coefficient as low as 0.06 to 0.12, ensuring smooth operation.
🔹 Self-lubrication & Maintenance-Free
No need for external oiling. The graphite forms a stable lubricating film during friction, eliminating oil contamination and reducing operation and maintenance costs.
🔹 High Load Capacity
Static load ≥ 200MPa, dynamic load ≥ 80MPa, suitable for heavy-duty axial support.
🔹 Wide Temperature Range Adaptability
-50℃ ~ +280℃ stable operation, instantaneous temperature resistance up to 350℃.

⚙️ Performance parameters
Base material: CuSn8 tin bronze / carbon steel
Graphite purity: ≥99.9%
Hardness: HB 70~90
Friction coefficient: 0.06~0.12
Operating temperature: -50℃ ~ +280℃

📦 Typical Applications
✔ Construction machinery: swivel support thrust surface, track joint
✔ Automotive industry: steering knuckle thrust surface, clutch disengagement
✔ Metallurgical equipment: rolling mill thrust bearing, continuous casting machine
✔ New energy: wind power yaw bearing thrust pad

Why choose us?

Q1: What are the differences between the white graphite copper sleeve and the ordinary graphite copper sleeve?
A: The traditional black graphite is prone to falling off and causing pollution. Our white graphite does not fall off, does not produce dust, is resistant to high temperatures (400°C), and is electrically insulating. It is suitable for clean environments such as semiconductor, food and pharmaceutical industries.
Q2: Can it really be completely without lubrication?
A: Yes. The solid lubricant embedding technology enables lifelong maintenance-free operation. There is no need for external lubricating grease, which saves operation and maintenance costs and eliminates oil pollution.
Q3: What is the working temperature range?
A: -200°C ~ +400°C (instantaneous 450°C), which is much higher than that of ordinary self-lubricating bearings. It is suitable for extremely cold and high-temperature baking equipment.
Q4: Can non-standard customization be supported?
A: Full-size non-standard customization is supported. New customers can apply for two free samples.
Q5: Which industries are applicable?
A: Semiconductor, food and pharmaceutical, aerospace and military, new energy, medical equipment, etc., which have requirements for cleanliness or high-temperature resistance.

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