Innenlagermaße für Einpresslager (Tabelle)
At the 2011 Interbike show, Calvin Jones of Park Tool sighed as he described the proliferation of new bottom-bracket dimensions. I've covered all the ones here which I can find, and listed them in order of bottom-bracket shell internal bearing seat diameter so as to highlight compatibilities. Adapters for some -- ranging from the venerable Ashtabula system to new high-end systems -- allow use with a variety of spindles. Phil Wood makes adapters to fit most press-fit bottom brackets: "[i]f you have a press fit bottom bracket (Merlin, Klein, Fisher, Ritchey, Fat Chance) and need replacement parts, we have spindles and bearings that will work" -- see Phil Wood FAQ page on bottom brackets. Wheels Manufacturing makes a number of adapters between these systems, as does FSA. Also see compatibility information in the table below . -- John Allen.
| Standard: | Threading or press fit | Adjustable cone direction | Fixed cone direction | Shell Width | Applications/Notes |
|---|---|---|---|---|---|
| Merlin | 30 mm pressed | 68 mm | |||
| Thompson/Thun | 30, 33, 35, 40, 45 mm pressed | left (cone and locknut) | right (cone and locknut) | 65, 68,70 mm | 2-piece or 3-piece crank. Sup and cone bearings. No shoulder inside shell; loose tolerances. |
| Mavic/Stronglight | 1.375" (or 35 mm) beveled | 65-73 mm | Bottom bracket cartridge clamps into a conventional BB shell once the ends have been faced with a 45-degree taper. Can work with English, ISO, French or Raleigh. Italian? | ||
| Velo Orange threadless | 1.375" (or 35 mm), threaded or unthreaded w/o shoulders | 68 mm | Clamps into bottom-bracket shell using expanding sleeves. but not Italian threaded BB shell unless possibly with a steel shim, 0.20"/0.5mm | ||
| Fat Chance/Gary Fisher | 35 mm pressed | 68 or 73 mm | Circlips on grooves in axle outboard of bearings | ||
| Klein | 35 mm pressed | 68 mm | |||
| Ritchey | 35 mm pressed | 68 mm | |||
| Shimano Hollowtech II, FSA MegaExo, RaceFace X-type | 37 mm pressed or British/ISO threaded l | 90 mm, 95 mm including cups | External cups for cartridge bearings fit British/ISO threaded bottom brackets or unthreaded shell. 24 mm spindle, spacer to use 6805 bearings with 25mm I.D.. Bottom bracket shell must be faced so cups are parallel. | ||
| BB90/BB95 | 37 mm | 90 mm, 95 mm | Used on Trek Madone carbon frames. 24 mm spindle. | ||
| BB83/BB86, BB92 | 41 mm press fit | 86 mm | 19 mm or 24 mm spindle | ||
| BB30, Cannondale System Integration | 42 mm press fit | 68, 73 mm | Adapters allow use with various 30 mm spindles. | ||
| Specialized OSBB Aluminum | 42 mm | 68mm | See compatibility guide. Usable with several BB30 spindles with Wheels Mfg. adapters | ||
| Roadmaster child's | 43 mm | 65 mm | |||
| Specialized OSBB Carbon | 46 mm | 61 mm | See compatibility guide. Adapters increase shell width to 68 mm. Usable with several BB30 spindles with Wheels Mfg. adapters | ||
| Pressfit 30 (PF30) | 46mm slip fit | 68, 73 mm | 30 mm OD spindle; plastic retainer for cartridges. | ||
| Cervelo BBright | 46 mm | 80 mm | Adapters allow use of various spindles. | ||
| BB386EVO | 46 mm press fit | 86.5 mm | Like PF30 but wider and with press-fit bearings. See info on FSA Web site. | ||
| ISIS Megatech | 48 mm pressed | 68 mm | |||
| FSA Megatech | 50 mm pressed | 68, 73, 83 mm | |||
| Ashtabula, O.P.C. | 51.3 mm (2.02") i.d.
(approximate). Male threads on crank are 24 tpi (most) 28 tpi (Schwinn, Mongoose) |
left (cone and locknut) | right (cone and locknut) | 68 mm (2.68") wide | Older U.S. bikes, BMX, Juvenile bikes,
Department store bikes. 24 tpi cranks use #66 retainers, with 10 5/16" balls. 28 tpi cranks use #64 retainers, with 9 5/16" balls. Note: Some higher quality(mostly BMX) bikes used Tange 24 tpi bottom brackets with #64 retainers. |
| Eccentric | 54 mm | 68 mm | For tandems and single-sprocket drive with vertical dropouts or belt drive. May be split with pinch bolts, or have setscrews. Shell diameter not critical. Also see Gary Fisher Eccentric below. | ||
| Gary Fisher Eccentric | 57 mm | 73 mm | Also see Eccentric above. |
Siehe auch
Quelle
Dieser Artikel basiert auf dem Artikel Sheldon Brown's Unthreaded Bicycle Bottom Bracket Crib Sheet von der Website Sheldon Browns. Originalautor des Artikels ist Sheldon Brown. ||Kategorie:Antriebstechnik]]
