Subheading 848310: Transmission Shafts (Including Cam Shafts and Crank Shafts) a … etc.
Subheading 848320: Bearing Housings, Incorporating Ball or Roller Bearings
Subheading 848330: Bearing Housings, not Incorporating Ball or Roller Bearings a … etc.
Subheading 848340: Gears and Gearing; (not Toothed Wheels, Chain Sprockets and o … etc.
Subheading 848350: Pulleys and Flywheels, Including Pulley Blocks
Subheading 848360: Clutches and Shaft Couplings (Including Universal Joints)
Subheading 848390: Transmission Components; Toothed Wheels, Chain Sprockets and … etc.