Eddy,

Lube points for bearing surfaces. When they are brought to a common point for charging it is called a lube block as it is either a single pump point with a multiport outlet or it is a bunch of singles that are bolted together to make a block that is mounted to the machine. I hope that makes sense used to install them all the time on machines to be able to lube a area within the machine without having to tear part of it apart. -Michael