• Control Arm For BMW 3110 6870 972
  • Control Arm For BMW 3110 6870 972
  • Control Arm For BMW 3110 6870 972
  • Control Arm For BMW 3110 6870 972
  • Control Arm For BMW 3110 6870 972
  • video

Control Arm For BMW 3110 6870 972

  • Sortech
  • China
  • 7-30days
  • There is some inventory, and the production capacity is 7~30 days after ordering
1.Manufactured from forged aluminum alloy using advanced technology, our auto suspension front control arm achieves a 30% weight reduction while delivering a 50% increase in strength. 2.Through precision steering geometry and shock-absorbing cushioning, our front control arm enhances both driving comfort and directional responsiveness. 3.The bushing and ball joint of this control arm are constructed from either graphene‑reinforced material or chromium‑molybdenum alloy, providing a service life exceeding 80,000 kilometers.

1. Control Arm Body

The control arm body is shaped from forged aluminum alloy using a die forging technique. It delivers low weight (40%–50% less than steel arms) along with high rigidity, effectively reducing unsprung mass and enhancing handling precision and ride smoothness.

Auto suspension front control arm

2. Ball Joint Assembly


Ball Stud: The ball stud is made from bearing steel. Its surface receives carburizing, quenching, and grinding treatments, resulting in superior hardness and wear resistance for responsive and accurate steering.


Socket: The socket is constructed from POM rubber and pre-packed with lithium grease. This minimizes friction and quiets noise between the ball stud and the socket during motion.


Dust Boot: The dust boot is formed from chloroprene rubber, offering resistance to oil and aging. It seals the ball joint against sand, water, and other harmful contaminants that could cause wear.


Preload Spring: The preload spring is fabricated from spring steel and maintains a steady preload force on the assembly.

Control arm

3. Bushing Assembly


Inner Sleeve: The inner sleeve is produced from 45# steel, finished with zinc plating or an electrophoretic coating for corrosion resistance. It is rigidly fastened to the subframe or knuckle using bolts.


Rubber Element: The rubber element is made of natural rubber and serves as a hydraulic bushing with internal oil-filled cavities. It possesses high elasticity and strong fatigue resistance, cushioning road impacts and filtering out noise. The hydraulic action also reduces high-frequency vibrations through fluid movement, increasing passenger comfort.


Outer Shell: The outer shell is fabricated from aluminum alloy. It is joined to the control arm body either by interference fit or welding, creating a secure and durable connection between the bushing and the arm.

Control arm for BMW

Q1:Do Your Products Meet International Standards (Such as Iso/Ts 16949)?

A: Our products have passed ISO/TS 16949 quality management system certification, and meet the European CE, Russian GOST and other regional standards. Specific certification can be provided according to customer needs.

Q2: Can You Provide Product Drawings or Technical Parameters?

A: Yes! Please provide your requirements or refer to our product catalogue on the website. We will send you detailed technical documents (including size, material, vehicle type, etc.).

Q3: Is There Any Products in Stock? Can I Deliver It on the Same Day?

A: The regular model is available in stock, and the delivery cycle is 3-5 working days; the production cycle of customized products needs to be confirmed according to the order.

Q4: Which Models Are Suitable for This Accessory?

A: Please provide the brand, model and year of the vehicle (such as BMW 2020), we will match the corresponding accessories.

Q5: How to Confirm the Compatibility of Accessories with the Original Car?

A: We provide OEM number comparison service or verify compatibility through third-party tools.

Q6: Does the Quotation Include Freight? Is It Fob Price?

A: The default quotation is the factory price (excluding tax). If you need FOB price, you need to specify the freight forwarder and bear the international freight, we will cooperate with you.

Q7: Is There a Bulk Discount?

A: The larger the order volume, the higher the discount. For example: -MOQ 100 pieces: unit price $10. -MOQ 500 pieces: unit price $8. Specific step prices can be negotiated after the procurement plan is provided.

Q8: Is the Price Tax Included?

A: The quotation is not included in tax (tax number of customer is required for export tax exemption in China). If DDP (tax paid delivery) is required, additional tax confirmation is required.

Q9: How to Place an Order?

A: You can send the purchase list by email or submit the order online (official website link), we will confirm within 24 hours.

Q10: Time Limit for Order Modification or Cancellation?

A: The modification can be made free of charge before production; the cancellation during production will incur the material loss fee (30% of the order amount); the cancellation after delivery is not allowed.

Q11: Who Will Bear the Freight?

A: The freight shall be borne by your company under FOB price; the cost to the destination port/denominated place shall be borne by us under CIF/DAP price.

Q12: What Documents Are Required for Customs Clearance?

A: To be provided: -Commercial invoice (including HS code). -Packing list. -Certificate of origin (FORM A). -Technical documents (e.g. product certification certificates). We can assist in preparing the documents, but the customer is responsible for customs clearance.

Q13: How to Lock in the Exchange Rate?

A: It can be agreed to take the spot selling price of the Bank of China at the time of signing the contract as the benchmark, or avoid the risk of volatility through forward exchange contracts.

Q14: What Is the Warranty Period of Your Products?

A: 2 years and 60,000 kilometers, electronic components 1 year warranty.

Q15: How to Deal with Product Quality Problems?

A: Please provide photos, test report and batch number to confirm the quality problem: -Free replacement or repair within the warranty period (24 months); -Negotiate partial compensation for non-quality issues.

Q16: How to Apply for Return or Exchange?

A: The return freight shall be borne (except for quality problems), and the return shall be confirmed by our quality inspection.

Q17: Is Installation Guidance Provided?

A: Provide multi-language installation video and graphic manual, complex accessories can arrange engineers for remote guidance.

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