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How to Remove and install Bottom Brackets - Threaded Shell   Back
VdxTitle: How to Remove and install Bottom Brackets - Threaded Shell
Length: 8:02
Author: Park Tools
URLURL
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VdxSummary: Threaded bottom bracket

Banner title: Threaded Bottom Bracket Removal and Installation Sub Title: How to Remove and install Bottom Brackets - Threaded Shell (BSA,T47,Cartridge, etc)

Scope of Video: When he says "threaded shell" he means only BSA threaded shell. (not some threaded shell like T47), and not press fit. He talks about "three piece cartridge style" (the three pieces are the cartridge, and two crank arms. He quickly says that the old "adjustable" cup and cone design is not covered.

So my name would be "BSA Cartridge".
  Does not cover Adjustable Cup and Cone Bottom Brackets (like I have in the Norco)

Note there are special types of threaded shell such as T47 for carbon frame bikes, but our standard bikes are all BSA Threaded. A T47 shell has a thread diameter of 47 mm, as opposed to 34.8 mm for BSA

Part Names:
  Cartridge
  three piece cranksets
  Crank Spindle

Thread diameter: 34.8
 Thread Pitch 24 TPI