DCTech T47 Shimano Internal Ceramic the best threaded bottom bracket compatible with T47 frames for Shimano cranks

DualCupTech™ automatically aligns the bearing faces regardless of external factors. Alignment between the bearings on both sides is crucial, and special attention is paid during the manufacturing process to minimize this concentricity value. The result is incredible: an extremely smooth pedal stroke from day one. DualCupTech™ not only can self-align the bearings but also creates a solid central joint without requiring threading or one-piece design. The result after assembly is that the bottom bracket works as a solid piece and eliminates any noise or movement issues. DualCupTech™ can be installed and removed like any other bottom bracket, without the need for special tools or complex instructions.

Ceramic ball bearings: Experienced high-performance bearing manufacturer
Ceramic ball bearings offer superior corrosion resistance, greater dimensional stability, lower density, and higher heat resistance. All this results in a more efficient material for bottom brackets.

Fully sealed
Every dust particle or drop of water is a potential cause of noise or bearing wear. That’s why all bottom brackets come with up to five O-rings to keep dust, water, mud, and moisture out of the bottom bracket.

Axial seals
All bearings are equipped not with one but TWO seals to protect against dust and moisture. This section is essential to ensure maximum durability and performance of the bottom bracket.

6061-T6 Aluminum
Aerospace quality and precision in one of the strongest alloys. Additionally, Bikone has developed a matte anodizing that is particularly scratch-resistant, with a finish worthy of any art gallery.

T6 heat treatment: For most aluminum alloys
6061, 6063, and 7075, the best heat treatment is T6. The T6 heat treatment offers greater hardness and other mechanical properties, such as grain structure normalization. This ensures that all aluminum products perform perfectly throughout their lifespan.

Features

• Bearings: Hybrid ceramic - ABEC5 / P5 - 2RS
• Cups: anodized 6061 T6 aluminum
• Seals: Radial and double seal

Mounting specifications

• Frame diameter: T47
• Frame width: from 85.5 mm (Road crank) to 92 mm (MTB crank)
• Crank diameter: Ø24mm (Shimano)
• Dimensions: 135 × 60 × 60 mm
• Crankset diameter: 29 mm (dub)
• Frame diameter: Threaded T47
• Frame width: 86.5, 92