That is the venerable Globe motor. Sadly, no longer legal for FRC robots.
It served us well for many seasons.
For a 2013 legal alternative, try the AndyMark PG71 gearmotor, or a combination of the VEXPro BAG motor and a 100:1 Versaplanetary gearbox. Both of these actually outperform the good old Globe.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)