Filter
Top Products
GRN4-610 Chapter 5: Maintenance 44 of 73
Lubricating the Main Bearings
A correct lubricant supply is an important requirement for operational safety and long
service life of bearings. Every machine is greased and test runs are performed before
delivery.
NOTE: Unsuitable lubricant, lubricant deficiency, excessive lubricant, or impurities
in the lubricant lead to overheating and extreme wear of the bearings.
Lubrication intervals
Use the following table to determine when to check and replace the lubricant.
Shift Operation
When to Replace
When to Check
One shift operation.
Every 18 months.
Monthly.
Two shift operation.
Every 9 months.
Monthly.
Three shift operation.
Every 6 months.
Monthly.
Checking lubricant quality
When determining whether a lubricant needs to be replaced, check for the following:
• Change in consistency.
• Discoloration.
• Degree of soiling.
Replacing or refilling lubricant
• Fill the bearings uniformly with grease until all operating surfaces are well-
greased.
• A lubricant quantity of 1/3 to 1/2 of the bearing volume per bearing is
required. If too much grease is used, the lubricant will become unusable due
to excessive temperature.
• Only one type of grease must be used. Mixing different types of grease
together is prohibited. The bearings are filled at the factory with lithium
base saponification roller bearing grease F3.
• Use the “List of lubricants” to determine which lubricants from which
manufacturers to use.