Do you have any evaluation data on how sliding resistance changes over time with Bell Hammer products? I’d appreciate it if you could provide such information.

Regarding your inquiry on the time-dependent changes in sliding resistance, we would like to provide the following supplementary explanation.

Currently, the test results we hold are primarily based on general lubrication performance evaluations conducted using equipment such as SRV testers and Four-Ball testers.

However, among the reports we have received from companies that conducted their own testing and verification in the past, the following trends have been observed:

• A clear reduction in initial friction due to film formation on the metal surface
  
• The lubricating film remained intact over time, maintaining stable sliding performance
  
• Resistance to oil film breakdown even under high-load and high-speed conditions

Please note, however, that detailed conditions such as test parameters, lubrication methods, and target materials have not been disclosed to us in many cases, primarily due to confidentiality concerns.

Therefore, these results are not presented as certified test data, but rather as trend-based evaluations that we share as reference information for companies considering improvements using our lubricants.