What is the torque specification for installing 35CrMo Outer Tie Rod End?
As a supplier of 35CrMo Outer Tie Rod Ends, I often receive inquiries from customers about the torque specifications for installing these components. The proper torque is crucial for ensuring the safety, performance, and longevity of the outer tie rod end in a vehicle's steering system. In this blog post, I'll delve into the details of torque specifications for 35CrMo Outer Tie Rod Ends, providing you with the information you need to make informed decisions.
Understanding 35CrMo Outer Tie Rod Ends
Before we discuss torque specifications, let's briefly understand what 35CrMo Outer Tie Rod Ends are. 35CrMo is a high - strength alloy steel known for its excellent mechanical properties, including high strength, good toughness, and wear resistance. Outer tie rod ends are critical parts of a vehicle's steering system. They connect the steering rack or steering gearbox to the steering knuckle, allowing the driver to control the direction of the wheels.
Our company offers two main types of 35CrMo Outer Tie Rod Ends: 35CrMo QT+black Process Outer Tie Rod and 35CrMo Outer Tie Rod End with Quenching. The QT+black process enhances the surface hardness and corrosion resistance, while quenching further improves the strength and toughness of the tie rod end.
Importance of Correct Torque Specification
Using the correct torque when installing a 35CrMo Outer Tie Rod End is of utmost importance. If the torque is too low, the tie rod end may not be securely fastened. This can lead to excessive play in the steering system, causing poor steering response, uneven tire wear, and potentially dangerous driving conditions. On the other hand, if the torque is too high, it can cause damage to the tie rod end, the steering components, or even the vehicle's frame. Over - torquing can lead to thread stripping, component deformation, and premature failure.
Factors Affecting Torque Specification
Several factors influence the torque specification for installing a 35CrMo Outer Tie Rod End:
- Thread Size: Larger thread sizes generally require higher torque values. The diameter and pitch of the threads on the tie rod end and the mating component determine the amount of force needed to create a proper connection.
- Material Coating: The surface coating on the tie rod end can affect the friction coefficient between the threads. For example, a black oxide coating may have a different friction characteristic compared to a plain steel surface. This difference in friction will impact the torque required to achieve the desired clamping force.
- Vehicle Make and Model: Different vehicles have different steering system designs and requirements. The weight, size, and intended use of the vehicle can all influence the appropriate torque for the outer tie rod end. For instance, a heavy - duty truck will typically require a higher torque value than a compact car.
Determining the Torque Specification
To determine the correct torque specification for installing a 35CrMo Outer Tie Rod End, the following steps can be taken:
- Refer to the Vehicle Manual: The vehicle manufacturer's manual is the most reliable source of information. It will provide the specific torque values for all steering components, including the outer tie rod end. Make sure to use the manual that corresponds to the exact make, model, and year of the vehicle.
- Contact the Supplier: As a supplier, we have extensive knowledge and experience with our 35CrMo Outer Tie Rod Ends. If you are unsure about the torque specification, you can contact us for guidance. We can provide you with general torque ranges based on the typical applications of our products.
- Use a Torque Wrench: Once you have determined the correct torque value, it is essential to use a torque wrench to apply the torque accurately. A torque wrench allows you to measure and control the amount of force applied, ensuring that the tie rod end is installed with the proper torque.
Typical Torque Ranges
While the exact torque value depends on the factors mentioned above, typical torque ranges for 35CrMo Outer Tie Rod Ends in passenger cars usually fall between 30 - 60 ft - lbs (40 - 80 Nm). For light - duty trucks and SUVs, the torque range may be between 50 - 80 ft - lbs (68 - 108 Nm). Heavy - duty trucks may require torques in the range of 80 - 120 ft - lbs (108 - 163 Nm).


It's important to note that these are just general ranges, and you should always refer to the vehicle manual or consult with us for the specific torque value for your application.
Installation Tips
Here are some additional tips for installing a 35CrMo Outer Tie Rod End:
- Clean the Threads: Before installation, make sure to clean the threads on both the tie rod end and the mating component. Remove any dirt, debris, or old lubricant to ensure a proper connection.
- Apply Lubricant: A small amount of lubricant can be applied to the threads to reduce friction and ensure more accurate torque application. However, make sure to use a lubricant that is compatible with the materials of the tie rod end and the vehicle's steering system.
- Check for Proper Alignment: After tightening the tie rod end to the specified torque, check the alignment of the steering system. Incorrect alignment can cause uneven tire wear and affect the vehicle's handling.
Conclusion
Installing a 35CrMo Outer Tie Rod End with the correct torque specification is essential for the safety and performance of your vehicle's steering system. By understanding the factors that affect torque, referring to the vehicle manual, and using a torque wrench, you can ensure a proper installation.
If you are in the market for high - quality 35CrMo Outer Tie Rod Ends or have any questions about torque specifications or installation, please feel free to contact us. We are committed to providing you with the best products and technical support. Let's start a conversation about your procurement needs and find the perfect solution for your vehicle.
References
- Automotive Engineering Handbook.
- Vehicle Manufacturer's Service Manuals.



