Compression limiters are non-threaded inserts that are commonly used in applications where a compressive load is applied to a plastic assembly. The compression limiter strengthens the plastic and withstands the compressive force that is applied when a mating screw is tightened. The integrity of the plastic is not compromised by the load that is applied.
Custom designed in a wide range of sizes and profiles
Ultrasonic / Heat Staking
Molded-In
Press-In
Knurling is used to add additional holding strength to the insert/compression limiter in the plastic component. Certain knurl patterns are more common and perform better for specific installation methods. Typically, compression limiters endure more compressive loads than rotational torque load. The types of knurls available for our compression limiters are noted below.
Non-Knurled
This is primarily used for mold-in applications where no rotational torque resistance is needed. An undercut is typically added to provide resistance to pull-out loads. No knurling is applied to the outside of the part.
Diamond Knurl
This pattern is primarily used & recommended for mold-in installation methods. It will provide added holding strength for torque and pull-out loads.
Diagonal Knurl
This pattern can be used for all methods of installation but is primarily more common for use with ultrasonic, thermal or press-in installation methods. It will provide added holding strength for torque and pull-out loads.
Straight Knurl
This pattern can be used for all methods of installation but is primarily more common for use with ultrasonic, thermal or press-in installation methods. It is very similar to a diagonal knurl but will not turn slightly during installation like the diagonal due to the straight knurl pattern. It will provide added holding strength for torque and pull-out loads.