Wellfar Engine Parts

Wellfar Engine Parts WELLFAR is a group company specialized in engine parts. We have 4 factory plants and 2 companies.

29/05/2026

Why Heavy Duty Diesel Engine Has Piston Sleeve? 📈Let's take a look at the last two important advantage.4. Thermal and Di...
25/05/2026

Why Heavy Duty Diesel Engine Has Piston Sleeve? 📈
Let's take a look at the last two important advantage.

4. Thermal and Dimensional Stability
Aluminum expands much more than steel at high temperature. If the pin runs directly in aluminum, clearance changes greatly between cold and hot conditions.
A bronze sleeve has lower thermal expansion and better shape stability, helping maintain proper clearance and reducing cold knock and hot seizure.

5. Higher Load Capacity
The pin–sleeve interface works like a plain bearing. The sleeve increases contact strength and fatigue resistance, allowing higher cylinder pressure and longer durability.

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ROOM 2409, NO 1068 XINGANG EAST Road, HAIZHU DISTRICT, GUANGZHOU
Guangzhou
510000

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+8619925827032

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