Intech Power-Core Thermoplastics Engineering Blog

Combating vibration, shaft bearings are only as good as their grease

Posted by Simon Barrell on Mar 16, 2010 4:02:00 PM

Intech Power-Core™ guide rollers and iCamFollowers™ absorb shock and vibration and their life is typically calculated for 100 million cycles, a performance relying in part on longevity of the roller bearings installed inside the plastic tires. Tests have found that degraded lubrication is the leading cause of bearing failure.

In harsh environments with high shock load frequency, combined with high humidity, some grease types can liquefy, then this will cause leakage from the bearing seals or can produce an added churning-friction effect on the bearing. As a result, in high speed applications, the operating temperatures will rise significantly, compounding the breakdown of the grease properties and resulting in premature bearing failure.

We have identified a new type of lubricant to improve our rollers resistance to shock and vibration by providing lubrication to the bearing when operating under extreme conditions. The grease, NLGI No. 2, has shown a consistent mechanical stability and less churning or deterioration than other lubricants.

We have been able to apply this newly acquired knowledge in a case of premature bearing failure in guide rollers used in a train sliding door in Florida. Exposure to high frequency vibration and high humidity caused a bearing failure while the plastic tire remained intact. By regreasing the guide roller bearings with the NLGI No. 2 grease, we have been able to better match the expected life of both the plastic tire and the bearings.

Intech Corporation is constantly striving to improve its products and certainly the discovery of this grease’s properties helps our customers extend the life of our rollers and bearings in shock and vibration applications.

Cam follower for packaging application 

 

 

 

 

 

 

 

 

Cam follower for packaging application

 

Concave, v-shaped, flat tire rollers

Concave, v-shaped, flat tire rollers

 Intech Rollers for High Security Door

Intech Rollers for High Security Door

Tags: cam followers, roller bearing, shock load, vibration, roller life, plastic tires, bearing failure, grease, lubrication

Self-Lubricating cam followers replace steel in outdoor applications

Posted by Simon Barrell on Nov 16, 2009 11:09:00 AM

Our customers have been asking us to help them with components for machines that will operate in ever harsher conditions. Intech iCam Followers® and Power-Core™ guide rollers feature a unique crystalline structure that is resistant to flow under static load, and provides long-wearing, non-lubricated performance. The devices do not wear out the rail, do not absorb moisture and, when fitted with stainless steel bearings, are suitable for wash downs and harsh and corrosive environments.

Unlike other plastic material, Power-Core™ does not become brittle in low temperatures. iCam Followers® and Power-Core guide rollers reduce maintenance and down time by retaining good bearing fit from -40° to 160° F, retaining elasticity, and absorbing shock and vibration in sub-zero temperatures. The devices are not only quiet and easy rolling, they do not generate metal particles, which can further increase down time potential.

Intech Rollers for High Security Door
Intech Rollers for High Security Door


Intech Power-Core rollers, cam followers, and trolleys are assembled from precision machined high performance, self lubricating engineered plastic tires and quality roller bearings. The plastic part of the roller fully envelopes and embraces the bearing outer racer which in turn provides high capacity to carry side loads.

The Power-Core rollers and iCam Followers® are available in stock sizes with load capacity from 60 to 500 lbs. Trolley assemblies feature aluminum track and trolley systems with attachments. Custom sizes and dimensions and tire shapes can be developed to meet specific applications.

Tags: Power-Core, self-lubricating gears, guide rollers, Power-Core rollers, Trolley Assembly, low temperatures, plastic tires, bearing fit, iCamFollowers, roller bearings, trolley assemblies