What does k mean in bearing number?
In the world of bearings the “k” prefix refers to the number of balls that make up the bearing’s internal race. When ball bearings are made, the balls are placed inside a steel race and an oil is added to the space between the balls and the race. This oil prevents the ball bearings from grinding together and keeps them from turning freely.
What does k mean in bearing number?
The “k” is the load factor. It’s the fraction of the weight of the ball that is due to the ball’s mass. Thus, a ball with a higher specific gravity will have a higher load factor. This is why a golf ball weighs less than a tennis ball. Another example is a baseball. While they have similar diameters, a baseball weighs almost a thousand times more than a tennis ball. A baseball’s lower load factor is a good
What does the k mean in bearing number?
The "k" in U.S. bearing numbers refers to the number of threads per inch, also known as TPI. The TPI rating varies depending on the type of thread it is. The rating is based on the thickness of the thread. Threads that have a thinner gauge will have a lower TPI rating.
What does k mean in bearing numbers?
As it pertains to most machine tools, the lower the value of the k factor, the better. When you’re looking for a machine tool, look for one with a lower value of the bearing life factor. For example, if you’re looking for ball bearing machine tools, look for the ones with a value of 0.5 to 1.0. This tells you that for every 1,000 hours of use, the ball bearings will last another 1,500 to 2
What do the k and a mean in bearing number?
The letters “k” and “a” stand for kelvin and arc. The U.S. military adopted the metric system for heat and cold in 1963 and is the originator of the system for measuring thermal properties. The “k” is used to describe the thermal conductance of a material, which is its ability to transfer heat. The “a” is used to describe the heat absorption or loss of a material.