SHIMANO Dura-Ace Track HB-7600

In the cup and cone type, the stress acts directly against the load, whereas in the industrial type sealed bearing, the stress is less likely to act in the direction of the load from its over-contacted point. The cup and cone type also has many advantages such as higher durability and easier maintenance, which is why Shimano still uses the cup and cone type in all of its hubs.

The following DURA ACE TRACK HUB set is the professional hubs that Shimano continues to produce with prestigE

This is the product page for the large flangE

SPEC

Average weight : 313g (rear LF w/ lock ring), 241g (front LF)
P.CD. left : 67mm
P.CD. right : 67mm
Flange diameter_left : 75mm
Flange diameter_right : 75mm
Shaft fixing method : nut
Bearing_cone : CBN, polished
Bearing_cup : CBN CBN, polished
Flange diameter : 75mm
Dimensions between flanges :
72.3 mm(Front), 75.5mm (Single Thread, Rear), 65.0mm(Double Thread, Rear)
O.L.D. : 100mm(Front), 120mm (Rear)
Offset : 0mm( Front), 5.25mm(Rear)
P.CD. : 67mm
Flange Diameter_Front:75mm
Flange Diameter_Rear :75mm
P.CD._Front : 67mm
P.CD _Rear :67mm