Bar and chain lubricant is a specialised oil designed to cut back friction and put on between the chain and information bar of a chainsaw. These lubricants sometimes possess a comparatively excessive viscosity to stick successfully to transferring components and stop untimely ejection because of centrifugal power generated throughout operation. The precise numerical worth related to viscosity, usually expressed in centistokes (cSt) or Saybolt Common Seconds (SUS), signifies its resistance to circulation. Larger numbers signify thicker, extra viscous fluids.
Satisfactory lubrication is crucial for the environment friendly and secure operation of a chainsaw. Inadequate lubrication results in elevated friction, leading to overheating, decreased slicing effectivity, accelerated put on on the chain, bar, and sprocket, and probably untimely failure of those elements. The right lubricant additionally protects towards corrosion and helps to flush away particles like sawdust and wooden chips, which might additional contribute to put on. Traditionally, numerous oils have been used, however trendy formulations provide improved efficiency traits, together with tackifiers for enhanced adhesion and components for elevated safety towards rust and oxidation.