Internal T47 Bottom Bracket

Internal T47 Bottom Bracket

Price range: $138.00 through $299.00

White Industries internal T47 style bottom brackets are made here in our shop and feature Enduro stainless steel angular contact bearings or optional Enduro XD-15 ceramic-hybrid radial bearings.  We offer them with three different bearing sizes to help you fit your favorite crank to your favorite bike.  “T47” is a bottom bracket standard that White Industries helped develop in 2016 and allows for a greater weld area for bigger frame tubes as well as room inside the shell for internally routed cables and wires

SKU: bttmbrcktinternal47
Category:

Description

Product Details

The “T” stands for “threaded” and the “47” is the nominal 47mm outside thread diameter of the cup. T47 bottom bracket cups are not compatible with the much smaller (and more common) threaded BSA BB shells.  The “internal” designation on this bottom bracket refers to the fact that the bearings sit “inboard” of 86mm and 92mm wide bottom bracket shells, as opposed to our “external” T47 bottom brackets where the bearings sit “outboard” of 68mm and 73mm wide bottom bracket shells.  If you have a 68mm or 73mm wide T47 bottom bracket shell on your frame, you will need one of our “external” T47 bottom brackets.

Technical Documents

Looking for more detailed technical info? Visit our Technical Documents page here.

Specs

  • 47mm x 1mm threads (“T47” threads)
  • Designed to be used on 86mm or 92mm wide bottom bracket shells
    • Not compatible with 68mm or 73mm wide BB shells
  • Enduro stainless steel angular contact bearings
    • Enduro XD15 ceramic-hybrid bearings optional
  • Weight/pr (with bearings and seals)
    • 30mm: 79g
    • 29mm: 87g
    • 24mm: 98g
  • Cup widths (external section of each cup, including seal)
      • 24mm: 2mm
      • 29mm: 2mm
      • 30mm: 2mm
  • Thread depths
    • 24mm: 13.4mm
    • 29mm: 13.4mm
    • 30mm: 13.4mm
  • Bearings
    • 24mm: Enduro SMRA 2437 LLB or CXD MR 2437 LLB
    • 29mm: Enduro S71806/29 LLB or CXD 6806/29 LLB
    • 30mm: Enduro S71806 LLB or CXD 6806 LLB
  • Torque: 26-37 ft lbs (35-50 Nm)
  • Anodized with machine engraved logos
  • Available in black only

Compatibility

  • Designed to be used on 86mm or 92mm wide bottom bracket shells
    • Not compatible with 68mm or 73mm wide BB shells
  • Comes in three bearing sizes to fit:
    • 30mm White Industries MR30 series cranks as well as other brands of 30mm spindle cranks
    • 29mm SRAM DUB cranks as well as other brands of 29mm spindle cranks
    • 24mm Shimano HollowTech II road and mountain cranks as well as other brands of 24mm spindle cranks
    • Not compatible with square taper style spindles
  •  Compatible with White Industries T47 BB sleeve available separately under Cranks>Bottom Bracket Sleeves
  • Tools: see the Bottom Bracket Tool Compatibility document

What's In The Box

  • Left and right threaded T47 internal cups with bearings installed and two external seals
    • Seals should sit directly against the bearings, with the part numbers (molded into the seal) facing out
  • Cup or spindle spacers not included
  • Sleeve not included
    • White Industries T47 BB sleeve available separately under Cranks>Bottom Bracket Sleeves

Additional information

Weight N/A
Dimensions N/A
BB Spindle Diameter

24mm, 29mm, 30mm
BB Shell Width

68mm/73mm, 86mm/92mm
Bearing Type

,

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