Black bearing bearing ceramic 25 x 37 x 6 mm B5 6805 / 61805 2RS Campagnolo Ultra Torque crankset UB-6805W6-CS

BLACKBEARING UB-6805W6-CS Hybrid Ceramic Bearing – 25 × 37 × 6 mm for eg. Campagnolo Ultra Torque crankset

EAN: 3760290193499
Part Number: UB-6805W6-CS
Brand: BLACKBEARING
Type: Narrow-profile hybrid ceramic industrial bearing (6805-2RS / 61805-2RS W6)

The BLACKBEARING UB-6805W6-CS is a premium narrow-profile hybrid ceramic bearing with a 6 mm width, designed specifically for high-performance bicycle components. The 25 × 37 × 6 mm size is the bearing size used in Campagnolo Ultra-Torque (UT) cranksets, making it a suitable replacement bearing for compatible Campagnolo cranksets.

The bearing uses silicon nitride ceramic balls, providing low rolling resistance and reduced friction. The hybrid construction combines ceramic balls with hardened steel bearing rings, offering favourable rolling characteristics compared with conventional full-steel bearings.

The 2RS double rubber seal provides effective protection against dust, water and other contaminants, ensuring reliable operation in changing weather and riding conditions.

Key Features

• Hybrid ceramic construction with silicon nitride ceramic balls

• 25 × 37 × 6 mm bearing size used in Campagnolo Ultra-Torque (UT) cranksets

• Very low rolling resistance and minimal friction

• 2RS double rubber seals for protection against water and dust

• Narrow 6 mm W6 profile

• Long service life and excellent corrosion resistance

• Favourable rolling characteristics compared with conventional steel bearings

Compatible Campagnolo Crankset Families

The 25 × 37 × 6 mm 6805 W6 bearing is used with the following Campagnolo Ultra-Torque (UT) crankset families, depending on the specific model and generation:

• Campagnolo Super Record Ultra-Torque

• Campagnolo Record Ultra-Torque

• Campagnolo Chorus Ultra-Torque

• Campagnolo Centaur Ultra-Torque

• Campagnolo Athena Ultra-Torque

• Campagnolo Potenza Ultra-Torque

Important: Compatibility should be checked according to the exact crankset model and version, as Campagnolo has used different crankset generations and bearing solutions.

Technical Specifications

Applications

• Campagnolo Ultra-Torque cranksets

• Road bikes

• MTB bikes

• Gravel bikes

• Triathlon bikes

• Special-size bottom brackets and bicycle components

• Bicycle servicing and performance tuning