Mastering Grease: The Ultimate Guide to Lubrication!

Описание: In this video, we will review lubrication techniques, lubrication quantity, and relubrication interval. We also include the parameters that have an impact on traditional lubrication standards, e.g., high temperature.

The formula to calculate the quantity of grease required for a bearing is typically:
G = (0.114 x D x B)/K

Where:

G = Amount of grease (in grams)
D = Outer diameter of the bearing (in mm)
B = Bearing width (in mm)
K = Adjustment factor (commonly 1 for standard bearings, but may vary depending on bearing type)

Explanation:
0.114 is a constant derived from practical experience with grease application in bearings.
The formula assumes that around 1/3 to 1/2 of the free space inside a bearing should be filled with grease.
Simplified Method for Initial Greasing:
A more simplified method often used is:

𝐺 = 0.005 × 𝐷 × 𝐵
G=0.005×D×B
Where:

0.005 is a simplified constant.
This method is used for initial filling, not for relubrication.
Relubrication Interval:
For relubrication, you need to consider factors such as operating speed, temperature, and bearing environment. A common formula for relubrication quantity is:

𝐺𝑟 = 0.3 × 𝐺 / 𝑁𝑓

Where:

G_r = Relubrication quantity (grams)
G = Initial grease quantity (grams)
N_f = Correction factor based on speed and bearing type.

Using these formulas helps ensure that the bearing is neither under-greased nor over-greased, which is essential for optimal performance and longevity.