• Co-creative development
  • Precision at scale
  • European Production
Sintex logo
Klaus Broendum DorinEmir Gadzo
Need help? We're here!
Need help?

Friction Shims. Performance that holds.

Increase friction. Reduce failure. Improve safety.
3D model of our Friction Shims
Sintex Friction Shim with coated Surface

When Torque becomes a challenge.

Large mechanical constructions often rely on multiple bolts tightened with extreme force to prevent slippage. But over time, this can lead to bolt fatigue, breakdowns, higher repair costs, and costly downtime.

As machines become more compact and electrified, the demand for smarter, stronger torque transfer increases — without compromising reliability.
  • Up to 4× friction
  • 1000 HV hardness
  • Lightweight assembly
  • Vibration resistance
Pattern

Friction Shims: A small detail can be a big deal.

Friction shims with extreme hardness and surface roughness increase the friction coefficient — improving torque transfer without overstressing the assembly.

In real-world scenarios, measuring that friction can be complex, and cost has been a barrier for many applications. That’s why Sintex optimizes performance and price, making high-torque solutions scalable, durable, and ready for industrial use.
  • Eliminates bolt loosening from vibration

Secure connections – even under shock and vibration.

Sintex Friction Shims ensure that mating surfaces stay tightly connected – even under extreme conditions. They eliminate the risk of bolts loosening due to vibrations, thermal shifts, or mechanical shock.

Whether you're operating offshore or in high-performance environments, reliability starts here.
Pattern
Drawing of Friction Shims principle of high friction coating

Friction Shims: High torque, low stress.

At Sintex, we have developed a new generation of Friction Shims based on hard metal particles that can penetrate the surface of the bolted flanges and thus ensure that they are mechanically locked with a friction that is at least 3 times higher. This is demonstrated in the video we have made on a simple construction in order to prove the solution.

Trusted in marine – and beyond.

Friction Shims are commonly used in the marine industry to secure crankshaft-to-propeller couplings. But their value extends to many industries where reduced weight and increased torque capacity are essential.

We supply Friction Shims to a range of high-demand sectors – from wind turbines to precision manufacturing.
  • Used by global leaders in wind, marine & automotive
Customer Case.

Higher friction. Longer lifetime. Stronger joints.

Industry: Wind Energy

A wind turbine manufacturer needed a stronger joint with higher static friction. Using Sintex friction shims and a refined tungsten carbide coating process, we delivered a wear-resistant solution that increased joint strength and lifetime — without compromising material integrity.
  • Used by global leaders in wind, marine & automotive

Get access to datasheets

Friction Shims

Large mechanical constructions are often assembled with many bolts that are tightened with very high forces in order to avoid slippage. This can cause breakdown due to the fatigue of the tightened bolts and can increase repair costs and downtime.
Fill out your information below in order to receive our datasheets.
Consent*

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Let's talk engineering.

Whether you're working on a new design or need to optimize an existing assembly, our specialists are ready to help.
  • Flexible and cost-effective coating
  • Surface with a hardness around 1000 HV 0,3
  • Particle hardness of up to 2600 HV
  • Unique surface – with an innovative grip technology
  • Reduced number and size of bolts
  • Four times higher friction coefficient
  • Increased performance
Get in touch
Consent*

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Fill out your information below in order to receive our datasheets.
Consent*

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Book a 30-min call.

Fill out your information below and we will return with proposals on time schedules.
Consent*

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Let's talk Engineering.

Get in touch
Consent*

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.