TQOW (TQO with cone face lubricant slots)
ID 2.0000 to 59.0501 in.(50.800 to 1499.872 mm)
OD 3.2810 to 80.0000 in. (83.337 to 2032.000 mm)

Design attributes:

• Similar to TQO, except that the cone faces have lubrication slots at each face
• Potential applications: low and medium-speed rolling mills
  

TQITS (four-row tapered bore assembly)
ID 4.8434 to 39.5525 in. (123.022 to 1004.633 mm)
OD 6.8750 to 80.0000 in. (174.625 to 2032.000 mm)

Design attributes:

• Two tapered-bore single cones, one tapered-bore double cone, four single cups and three cup spacers
• Front faces of single cones and both faces of double cone are extended to contact each other
• Tapered cone bores are matched for continuous taper through the cones
• Lubrication delivered through three cup spacers
• Potential applications: roll necks of high-speed rolling mills
  

TQITSE (TQIT with extended cone)
ID 6.5140 to 39.5525 in. (123.022 to 1004.634 mm)
OD 9.0530 to 80.0000 in. (229.946 to 2032.000 mm)

Design attributes:

• Similar to TQITS, except the large bore cone has an extension to provide a hardened, concentric and smooth surface for radial lip seals
• Potential applications: roll necks of high-speed rolling mills
  

TQO (straight bore four-row assembly)
ID 2.0000 to 59.0551 in. (50.800 to 1500.000 mm)
OD 3.2810 to 80.0000 in. (83.337 to 2032.000 mm)

Design attributes:

• Two double cones, two single cups and a double cup with a cone spacer and two cup spacers
• Spacers have slots or holes for lubrication
• Cone spacers are hardened to reduce face wear
• Numbered serially to assure correct installation sequence
• Potential applications: low and medium-speed rolling mills