Rotor BB386EVO UBB4630 Road Bottom Bracket, 46 x 86.5 mm

Sophisticated sleeve technology: The UBB4630 Bottom Bracket by Rotor

The UBB4630 for the BB386EVO bearing standard uses a threaded sleeve to connect both bearing cups. This connection reduces stresses that usually act on the press-fit sleeves. Dimensional tolerances of the bottom bracket shells can be compensated for, resulting in better parallelism of the bearings and thus better smooth running of the crank movement and less noise. The outer bearing cups additionally increase the stiffness. The better fit of the bearing/sleeve unit saves the bearings from overload and improves their longevity. The inner sleeve also protects against cable damage or damage to the electronics, as no friction with rotating parts can occur.

Specifications:

Application:

Road, Triathlon, Cyclocross

Type:

BB368EVO

Shell Diameter:

46 mm

Shell Width:

86.5 mm

Axle Diameter:

30 mm

Technical Information:

Bearings:

steel

Bottom Bracket Cup Material:

aluminium (7075-T6)

Compatibility:

• only Rotor UBB30 cranksets (3D+, 3D30, Flow, Powermeter)

Features:

• black anodised
• with threaded sleeve
• reduced tension, improved smooth running
• less noise emission
• durable

Technology:

UBB System
Universal Bottom Bracket is a design standard that Rotor applies to all cranksets to make them compatible with all frames available on the market.

Manufacturer Number:

C04-029-01010-0

Contents:

• 1 x Rotor Pressfit (UBB4630) right bearing cup, incl. steel bearing
• 1 x Rotor Pressfit (UBB4630) left bearing cup, incl. steel bearing
• incl. threaded sleeve