Lubrication
Since the Change Nut is delivered without a lubricant/grease, it is necessary to replenish an appropriate amount of lubricant/grease after installing the bearing. Select a lubrication method according to the service conditions.
Oil Lubrication
For the lubrication of the change nut, an oil lubrication is recommended. Specifically, an oil-bath lubrication or a drop lubrication is particularly effective. An oil-bath lubrication is the most appropriate method since it meets the harsh conditions such as a high speed, a heavy load or an external heat transmission and it cools the change nut. The drop lubrication is appropriate for the low to medium speed and a light to medium load. Select a lubricant according to the conditions as indicated in Table2 .
| Conditions | Types of Lubricants |
|---|---|
| Low speed, high load, high temperature |
High-viscosity sliding surface oil or turbine oil |
| High speed, light load, low temperature |
Low-viscosity sliding surface oil or turbine oil |
Grease Lubrication
In a low-speed feed, which occurs less frequently, the user can lubricate the slide system by manually applying the grease to the shaft on a regular basis or using the greasing hole on the change nut.We recommend using lithium soap-based grease No. 2.
Initial Lubrication of the Miniature Change Nut
Since the Miniature Change Nut is made of oil-impregnated plastics, it can be used without the lubrication during an operation. For the initial lubrication, use some oil or grease. Note that lubricants containing large amount of extreme pressure agent are not suitable.
