Subframe Mounting Sleeve

The Subframe Mounting Sleeve connects the subframe to the vehicle body. It is a key load-bearing part of the subframe assembly. We offer flexible material options, including 10B21, 10#, 20#, 45#, and 20Cr. We select the material based on strength requirements and cost considerations. 45# steel provides good strength at a lower cost. 20Cr is suitable for applications that require heat treatment. We cut the sleeve from seamless steel tubes and chamfer both ends. The chamfer angle is typically 30 degrees. Our product provides reliable support for the entire subframe structure.

We use automatic chamfering machines and inner hole machining lathes. These machines help us maintain high production efficiency. Our daily output reaches 3,000 pieces per shift. We keep sufficient material stock on hand to support regular production. Common sizes can enter production on the same day. We use inner diameter micrometers for quality checks. We measure the inner hole at three cross-sections and in two directions at each section. We use the average value as the final measurement. The inner diameter tolerance remains within ±0.02 mm on our Subframe Mounting Sleeve. This precision helps ensure a proper fit with mating parts.

Our raw materials come from large steel mills. We use our purchasing volume to obtain better material prices and pass the savings on to customers. Our minimum order quantity is flexible, so new customers can start with smaller quantities. Our Subframe Mounting Sleeve has been approved by multiple OEM customers. These sleeves are used in vehicles exported to different markets worldwide. We also provide technical support for overseas customers. Our team can answer questions about installation and material selection. We are committed to being a long-term supply partner for subframe components.