The HB-7600 hub features cup and cone bearings for increased strength, and easier maintenance and adjustability over sealed cartridge type bearings.
Dura-Ace is at the peak of Shimano’s engineering and manufacturing expertise, and the Dura-Ace Track 7710 series of products takes all that knowledge and distils it into components designed specifically for the rigours of track cycling.
Technologies
Cup and Cone bearings:Angular contact bearings of the cup & cone type offer greater strength than sealed cartridge industrial bearings due their ability to displace lateral and vertical loads more effectively for super smooth rotation and longer durability. Angular contact bearings also allow easier maintenance, adjustability and serviceability.
Specifications
| Series | DURA-ACE TRACK 7710 Series |
|---|---|
| Average Weight | 313 (rear LF w/ lock ring) 241 (front LF) |
| P.C.D Right/ Left | 67/ 67 |
| Flange Diameter Right/ Left | 75/ 75 |
| Brake Type | Rim Brake |
| Axle fixing method | Nut |
| Flange Distance | 75.5 (Single Thread, Rear) 65.0 (Double Thread, Rear) |
| Offset | 5.25mm |
| O.L.D | 120mm |
| Seal | Dust Cap |
