Wartung von Sturmey-Archer Drei-Gang-Naben

Cross-section of Sturmey-Archer 3-speed drum-brake hub

General information

Old-English Another article on this site covers maintenance issues that apply to three-speeds as well as other Sturmey-Archer hubs:

   Cable replacement
   Cable adjustment
   Cone Adjustment
   Anti-rotation washers
   Axle length
   Lubrication

Read that article along with this one.

There are also articles on this site covering

   Internal-gear hubs, in general
   Sturmey-Archer hub models
   Disassembly of Sturmey-Archer hubs
   Special alignment and adjustment (Sturmey-Archer Dynohubs, hub brakes, shifter parts)
   Use and maintenance of Sturmey-Archer hubs
   Parts and names (older Sturmey-Archer hubs)
   Sturmey-Archer corporate history
   Sturmey-Archer date and model identification

Gearing

Old English The common Sturmey-Archer three-speed hubs provide a direct drive middle gear, a high gear that is 4/3 of the middle gear, and a low gear that is 3/4 of the middle gear. (The principle of operation is explained on another page on this site.) Among current hubs as of 2010, the S3X fixed-gear hub is different, with two step-down gears and a direct-drive gear, and a special Brompton hub has a wider range to use with two sprockets and a derailer for a total of 6 speeds.

By modern standards, the typical English 3-speed bicycle is geared rather high. Most have 46/18 gearing, which gives gain ratios of 3.83, 5.11 and 6.81 (50, 66, and 89 inches; 4.00, 5.28 and 7.12 meters.) You can make riding a lot easier by customizing the gearing. 20 and 22 tooth sprockets are readily available, as well as smaller sizes for speed demons or small-wheel bicycles. It is also possible to modify Shimano cassette sprockets with a Dremel grinder if you need something bigger. This is not particularly difficult to do. There is more detailed information on this on another page.

Sturmey-Archer has manufactured many models of 3-speed hubs over the years.

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Spoke Divider Documentation on current and recent Sturmey-Archer 3-speed hubs

Sturmey-Archer has the widest surrent selection of three-speed hubs of any manufacturer. Most have aluminum shells, and are relatively light compared with hubs of other brands. The information below is compiled from a review of the Sturmey-Archer Web site, Sturmey-Archer catalogs, and a Web search. Technical information is available for most, but not all, current Sturmey-Archer 3-speed hubs. The newest three-speed coaster-brake hubs have been added to the comparative parts lists in Sutherland's Handbook of Internally Geared and Coaster Brake Hubs, now online on this site.

Rows with yellow backgrounds in the table below are for hubs which are lsted in both the 2010 and 2015 catalogs. Links in the "Model" column will take you to Sturmey-Archer's page about the hub. Rows with green backgrounds are for hubs new since 2010. Rows with white backgrounds are for "ghost" hubs -- no longer sold, not in the 2015 catalog, and parts may no longer be available. On the other hand, many parts lists are available which were not in 2010, listed in the Documentation column.

   Specifications
   Fitting Sets (for most hubs -- unless indicated in individual entries)
   A site with information on several hubs
   Another site with information on several hubs

Model Features Documentation AB3 90 mm drum brake, steel shell Like SAB3; Also see AB/C. AB/C 90 mm drum brake, steel shell Technical information. Another source Internals like S-RF3. Installation and parts list. AW No Intermediate Gear version -- not the classic AW. Steel shell.

Technical info Parts list AWC Coaster brake, steel shell Technical information Rebuilding instructions and comparative parts list, in Sutherland's AWC 2003-2005 Coaster brake, steel shell -- slight modification of the earlier version Technical informationAnother source Rebuilding instructions and comparative parts list, in Sutherland's AWC(II) Coaster brake, steel shell -- slight modification of the earlier version. Same as S-RC3(II) except for the shell.

Technical information Another source Parts list Rebuilding instructions and comparative parts list, in Sutherland's BWR Special Brompton extra wide-ratio 3-speed used with 2 sprockets and a rear derailer to make a 6-speed hybrid-gearing system. This hub is apparently sold only through Brompton.

Procedure is the same as for the S-RF3; driver and planet cage assembly are different.

Video of disassembly/reassembly on Brompton site (requires that you establish a login).

Video of disassembly-reassembly, narration is in French but you should be able to follow this anyway. CS-RF3 Splines for cassette (hybrid gearing)

Installation Fittings Parts list CS-RK3 Splines for cassette (hybrid gearing) disc-brake fitting

Installation Fittings Parts list QS-RC3 Gearbox for tricycle. Has reverse gear and coaster brake.

Installation Parts list RS-RB3 Rotary shifting. Band brake fitting, could be used for drive sprocket

Installation Fittings Parts list RS-RF3 Rotary shifting

Installation Fittings Parts list RS-RK3 Rotary shifting, disc brake fitting

Installation Fittings Parts list RX-RD3 Rotary shifting, drum brake.

Installation Fittings Parts list S3X Fixed gear

Installation Fittings Parts list SAB3 70 mm drum brake Parts list; like AB3 S-RC3(II) Coaster brake. This is the same as the AWC(II) except that the shell is of aluminum..

Technical information Parts list Rebuilding instructions and comparative parts list, in Sutherland's S-RF3 3-spline driver Technical information,, rebuilding Parts list Another source S-RF3 (N) 9-spline driver Probably like S-RF3 S-RK3 Brake disk fitting, 3-spline driver Parts list S-RK3 (N) Brake disk fitting, 9-spline driver Probably like S-RF3 SX-RB3 Wide body (chainline 65-69 mm), band-brake (threaded) fitting Parts list SX-RK3 Wide body (chainline 65-69 mm), brake-disk fitting Parts list TS-RB3 Gearbox for tricycle. Threading for band brake at left side

Installation (but no reverse gear) Parts list TS-RC3 Gearbox for tricycle. Coaster brake

Installation (but no reverse gear) Parts list TS-RF3 Gearbox for tricycle. Has reverse gear.

Installation Parts list X-RD3 70 mm drum brake Technical information Another source Yet another Parts list (says XL-RD3) XL-RD3 90 mm drum brake Like X-RD3; Installation Parts list

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Spoke Divider Older Sturmey-Archer Three-Speeds classic Sturmey-Archer AW hub in cross-section

The classic Sturmey-Archer AW hub in cross-section

Old English Almost all English 3-speeds have Sturmey-Archer rear hubs. The classic Sturmey-Archer AW hub is by far the most common model. It is quite easy to overhaul with these instructions. Parts for the classic AW are available from Harris Cyclery, and this hub is so common that parts can often be cannibalized from discarded wheels. (The current No Intermediate Gear version of the hub is not the old AW. It is mostly the same as the S-RF3 hub except for its steel shell.)

There have been several licensed and unlicensed copies of the AW: Brampton, Hercules, Scintilla, Steyr, SunTour, Vibo. Most parts are interchangeable.

The table below covers the more common older hubs and a few others of interest. It omits specialty narrow-ratio hubs and hubs discontinued before 1940. Old Sturmey-Archer three-speeds other than the AW and closely-related models (AG, AB) can be tricky or impossible to repair, due to parts un-availability.

Sturmey-Archer changed its parts numbering system sometime around 1950. Older parts numbers begin with the letter K and newer ones, with H. If the model of the hub is the same, and the description of the part is the same, the part is almost always the same, despite the different numbering. Some of the classic references linked below use the "K" parts numbers. Sutherland's Handbook of Coaster Brake and Internally-Geared Hubs uses the newer part numbers.

Older internal parts with a gray finish are reportedly more durable than newer ones with a black finish, due to a better surface-hardening treatment which had to be discontinued for environmental reasons.

The AW's internals will fit into many Sturmey-Archer hub shells of the same era, making it possible to keep a wheel in service. One exception is that the left ball cup of many if not all four- and five-speed hubs lacks an inner flange to center the planet cage. Sturmey-Archer historian Tony Hadland reports that 1984- and later steel AW shells will not accept S5 internals. Coaster-brake and drum-brake shells will not fit the AW.

Older Sturmey-Archer coaster-brake hubs have safety issues: The brake of the TCW and S3C was actuated through the gear train, so it was weakest in high gear, when the bicyclist was going fastest! The TCW could lose the brake entirely if the cable was misadjusted, due to the neutral-gear position between second and third,. The AW and its near relatives also have a neutral gear, and if the cable is misadjusted, these hubs can drop out of gear. Jobst Brandt has, in addition, described a tendency of these hubs to slip out of high gear into neutral in a hard sprint -- though this problem does not occur under more usual conditions of use. See comments on this topic by Brandt.

The Web sites linked below the table cover many additional older hubs. The Sturmey-Archer Heritage Web site has a wealth of historical and technical information. Tony Hadland's Web site includes an exploded drawing and parts list for nearly every Sturmey-Archer model up through 2001, as well as rebuilding information for many older hubs. Documentation on the older hubs is actually better than on current ones.

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Year Introduced Features

Documentation in Boldface if on this site AB 1938 90 mm drum brake Parts list and instructions Another source Parts list AG 1946 Dynohub generator Rebuilding instructions Another source Parts list ASC 1946 Fixed gear Rebuilding instructions Another source Parts list AT3 Elite 1984 Drum brake, aluminum shell, no intermediate gear. Internals same as the SAB Technical information Parts list AW 1936 The classic but can slip into neutral! not the same as the current no-intermediate-gear version. Rebuilding instructions and comparative parts list, in Sutherland's Rebuilding instructions Technical info Parts list and exploded drawing Later version of instructions AW-Columbia 1984 Columbia "no slip" three-speed Parts list, exploded diagram Another source AW Alloy 1983 Three-speed, aluminum alloy shell Rebuilding instructions and comparative parts list, in Sutherland's Technical info Parts list S3B 1967 Small-diameter drum brake Parts list and exploded diagram Another source S3C 1970 Coaster brake, weakest in high gear Rebuilding instructions and comparative parts list, in Sutherland's Rebuilding instructions Parts list Another source Yet another source And another SAB 1978 70 mm drum brake Parts list SAB Steelite 1984 70 mm drum brake, no intermediate gear. Internals same as the AT3 Technical info Parts list SW 1954 1954-58 hub with forward-freewheeling problem. Analysis of design and problems Parts list Another source TCW 1952 Coaster brake (if cable is adjusted) Rebuilding instructions and comparative parts list, in Sutherland's Parts list Another source

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   Sutherland's Handbook of Coaster Brakes and Internally-Geared Hubs
   Sturmey-Archer 1951 Service Manual on the Sturmey-Archer Heritage site.
   Sturmey-Archer 1951 Service Manual on Vancouver Van Touring site
   1956 service manual and 1902-2001 information on Tony Hadland's site
   1956 service manual on www.toehead.plus.com
   Rebuilding instruction for several hubs on Jane Thomas's site

Links Sturmey-Archer logo Official Site old Sturmey-Archer logo Heritage site Three-Speed Parts from Harris Cyclery English Three Speeds, Care and Feeding Internal-Gear Hubs Sturmey-Archer Hubs, General Information Sturmey-Archer 1902-1952 Sturmey-Archer 1935-38 Catalogues Evolution of the Raleigh Sports My old Robin Hood Sheldon's old Robin Hood Martin Hanczyc's roadster pages. Tony Hadland's Sturmey-Archer Pages including the 1956 master catalogue with rebuilding information for SWs and others. Hubstripping web site John Allen's spreadsheets of internal-hub gear ratios Retro Raleighs SW Hubs by Brian Hayes Jane Thomas's site with Sturmey-Archer service manuals. Menotomy Vintage Bicycles Chat forum on English bikes.

Quelle

Dieser Artikel basiert auf dem Artikel Servicing Sturmey-Archer 3-Speed Hubs von der Website Sheldon Browns. Originalautor des Artikels ist Sheldon Brown mit Artikelergänzungen durch John Allen