BlackBearing Bushing Bosch Axle Gen4
Description
This bushing is designed to be installed on the crankset axle of the Gen 4 Bosch motor.
It is strongly recommended replacing both bushings per motor for optimal performance.
When the friction bushings wear out, play may develop in the crankset axle, even after replacing the bearings included in the EM-026-BOSCH service kit (or with individual bearing replacements). As this part is not sold separately by Bosch, their official recommendation is to replace the entire motor unit when axle play occurs.
BlackBearing offer an alternative!
Webshops and Bike shops
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Stock Code:WMBB-BB30-EBB-BLKStock Code:WMBB-BB30-EBB-GXP-BKStock Code:WMBB-PF30-EBB-BLACKStock Code:WMBB-PF30-EBB-GXPStock Code:WMBB-PF30-EBB-GXP-BL
New Eccentric bottom bracket for use in BB30 frames. Convert your BB30 frame to a single-speed setup with our simple to use bottom bracket.
Compatible with 24mm (Shimano, FSA, Etc.) cranks. Enduro Angular Contact sealed bearings. Double lip seals on all bearings with high fill rate top quality grease for maximum durability. Machined aluminum is superior in function and durability to plastic. Fully serviceable.
- Enduro ABEC-5 Angular Contact sealed bearings
- Fits BB30 bottom bracket shell widths from 68mm to 73mm
- Use with 24mm (Shimano, FSA, Etc.) cranks
** IMPORTANT NOTE: Our Eccentric bottom brackets for BB30 frames will not work with frames that do not have removable c-clips in the shell. If your frame has a shell with a molded step that the bearings press up against, our EBB will not completely fit in to the shell.$279.00 (RRP)$279.00 (RRP)$279.00 (RRP)$279.00 (RRP)$279.00 (RRP) -
Stock Code:WMBB-PF30A-OUT-SHIM
The two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement.
Specifically designed for installing 24.00mm spindle diameter cranks (Shimano, Etc.) in Cannondale PF30A (46mm ID, 73mm wide asymmetrical BB shell) frames without the need for any adapters.
**Note: FSA MegaExo spindles can be between 24.00mm and 24.07mm in diameter. If your FSA spindle is 24.07mm, this BB will not work! Please purchase our FSA 24.07x37 ceramic hybrid bearings separately. **
- Bottom Bracket/Frame Interface: Cannondale PF30A
- Bottom Bracket Shell Width (mm): 73mm
- Bottom Bracket Shell I.D.: 46mm
- Crank Spindle Diameter: 24.00mm
- Tool Pattern: 44mm x 16 notchExpected Date:19 March 2026$228.00 (RRP) -
Stock Code:WMBB-T47-OUT-SHIM-BB
T47 threaded BB cups for T47 frames and 24.00mm spindle diameter cranks. Cups have outboard bearings, and are typically used in BB shells with widths from 68mm to 100mm. Machined aluminum cups thread together directly into a T47 BB shell. Bearings are easily serviced or replaced. Includes sleeve to fit between cups for added protection from dirt and grime, and also keeps your internal wires and hoses from rubbing on the crank spindle.
T47 BB cups are similar to standard BSA threaded cups in that the drive side cup is left-hand thread and the non-drive side cup is right-hand thread. Use a quality grease when installing in steel or aluminum BB shells, and an anti-seize compound compatible with titanium BB shells.
Bottom Bracket Includes:
BB Cups with bearings
2 - Silicone dust seals
2 - 0.5mm crank spindle spacers
2 - 1.0mm crank spindle spacers
Bearings: Enduro ABEC-3
Bottom Bracket/Frame Interface: T47
Bottom Bracket Shell Width (mm): 68mm - 100mm
Bottom Bracket Shell I.D.: 47x1.0mm Threaded
Crank Spindle Diameter: 24.00mm
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Stock Code:WTBB-T47I-24-BLKStock Code:WTBB-T47I-24-ORGStock Code:WTBB-T47I-24-PRUStock Code:WTBB-T47I-24-RSILStock Code:WTBB-T47I-29-BLKStock Code:WTBB-T47I-29-ORGStock Code:WTBB-T47I-29-PRUStock Code:WTBB-T47I-29-RSILStock Code:WTBB-T47I-29-BLUStock Code:WTBB-T47I-29-ESPStock Code:WTBB-T47I-29-GLDStock Code:WTBB-T47I-29-OLVStock Code:WTBB-T47I-29-REDStock Code:WTBB-T47I-30-BLKStock Code:WTBB-T47I-30-ORGStock Code:WTBB-T47I-30-PRUStock Code:WTBB-T47I-30-RSIL
Wolf Tooth T47 Internal Bottom Brackets are engineered to be smooth, durable, lightweight, fast, and user-serviceable. The ground-up design features custom bearings, seals, bushings, and cups, which eliminate creaking and balance best-in-class weather sealing with optimized bearing radial compression, alignment, and preload for low drag.
The bearings in Wolf Tooth Bottom Brackets feature a custom design. The balls and race are made from a hardened chrome bearing steel. This has a higher surface hardness than stainless, which improves the durability of bearing races and reduces spinning resistance and noise. An ACOSUR ZNA coating has also been applied to the race to provide corrosion resistance that is equal to or better than stainless steel after a 500-hour saltwater test. Bearing material paired with an extensive sealing system and the elimination of metal-on-metal contact means Wolf Tooth Bottom Brackets have superior performance in all conditions.
- Compatible with 24mm spindle cranksets
- Adjustable-width sleeve fits 85.5mm - 92mm T47 Internal bottom bracket shells
- Best-in-class weather sealing protects bearings from water, mud, and debris
- Custom polymer spindle bushings eliminate creaking
- Installation and removal with standard 52-16 spline tool or BBS5216
- Replacement parts available
- Engineered, machined, and assembled at Wolf Tooth HQ in Minnesota, USA
- Lifetime warranty on the bearings
Bottom brackets ship with the following shell and spindle spacers:
- 2x 2.5mm shell spacers
- 2x 0.5mm, 2x 1mm, 2mm, 3mm, 5mm 24mm spindle spacers$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP) -
Stock Code:WTBB-T47I-24-BLKStock Code:WTBB-T47I-24-ORGStock Code:WTBB-T47I-24-PRUStock Code:WTBB-T47I-24-RSILStock Code:WTBB-T47I-29-BLKStock Code:WTBB-T47I-29-ORGStock Code:WTBB-T47I-29-PRUStock Code:WTBB-T47I-29-RSILStock Code:WTBB-T47I-29-BLUStock Code:WTBB-T47I-29-ESPStock Code:WTBB-T47I-29-GLDStock Code:WTBB-T47I-29-OLVStock Code:WTBB-T47I-29-REDStock Code:WTBB-T47I-30-BLKStock Code:WTBB-T47I-30-ORGStock Code:WTBB-T47I-30-PRUStock Code:WTBB-T47I-30-RSIL
Wolf Tooth T47 Internal Bottom Brackets are engineered to be smooth, durable, lightweight, fast, and user-serviceable. The ground-up design features custom bearings, seals, bushings, and cups, which eliminate creaking and balance best-in-class weather sealing with optimized bearing radial compression, alignment, and preload for low drag.
The bearings in Wolf Tooth Bottom Brackets feature a custom design. The balls and race are made from a hardened chrome bearing steel. This has a higher surface hardness than stainless, which improves the durability of bearing races and reduces spinning resistance and noise. An ACOSUR ZNA coating has also been applied to the race to provide corrosion resistance that is equal to or better than stainless steel after a 500-hour saltwater test. Bearing material paired with an extensive sealing system and the elimination of metal-on-metal contact means Wolf Tooth Bottom Brackets have superior performance in all conditions.
- Compatible with 24mm spindle cranksets
- Adjustable-width sleeve fits 85.5mm - 92mm T47 Internal bottom bracket shells
- Best-in-class weather sealing protects bearings from water, mud, and debris
- Custom polymer spindle bushings eliminate creaking
- Installation and removal with standard 52-16 spline tool or BBS5216
- Replacement parts available
- Engineered, machined, and assembled at Wolf Tooth HQ in Minnesota, USA
- Lifetime warranty on the bearings
Bottom brackets ship with the following shell and spindle spacers:
- 2x 2.5mm shell spacers
- 2x 0.5mm, 2x 1mm, 2mm, 3mm, 5mm 24mm spindle spacers$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)$270.00 (RRP)
