7 RS Roller Chain Lubrication All U.S. Tsubaki Roller Chain is pre-lubricated with a special high-grade lubricant before packing. U.S. Tsubaki’s lubricant has been specially developed to thoroughly penetrate all parts of the chain, especially the critical areas where the pin and bushing surfaces articulate with each other while the chain is under a full load. Proper roller chain lubrication is essential for peak performance and maximum chain life. Follow the lubrication schedule and recommendations carefully. Improper lubrication will shorten chain life and decrease operating performance. Since wear between pins and bushings causes chain elongation, lubrication must be maintained on all contact surfaces. Proper lubrication forms an oil film that:
1. Reduces abrasion and chain wear 2. Reduces chain friction and noise 3. Functions as a coolant when chain is run at high speeds 4. Functions as a cushion against impact
Lubricant for roller rhain must be selected and applied according to the application and working conditions of the chain. Once applied, the lubricant should not be wiped off with a cloth or washed with certain solutions, such as TriClean ™ .
Pin
Bushing
Roller
Pin Link Plate
Roller Link Plate
Figure 7-1: Proper Penetration of Lubricant
The lubricant should penetrate the areas shown in Figure 7-1.
Recommended Lubricants Only high-grade oil of suitable viscosity should be used for RS Roller Chain lubrication. The amount and type of oil depends on the chain specifications, working conditions, and lubricating system. Oils to avoid: 1. Heavy oil (except under special conditions) 2. Low-grade oil 3. Impure oil or grease 4. Used oil These types of oil should not be used as they do not lubricate the chain effectively and will reduce service life or cause chain damage or breakage.
TriClean ™ is a trademark of TriSep Corporation, Goleta, CA.
10 I NSTALLATION & M AINTENANCE
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