08-05-2021, 06:15 AM
(This post was last modified: 08-05-2021, 06:43 AM by Tony Press.)
'So, is the description below the usual 4-speed crash box, or this one, I wonder?'
No- from the drawing above this is another variation on the original blueprint of a 'new' four speed gearbox, note the two ball bearings on the third motion shaft and the single ball bearing on the first motion shaft among a number of other differences.
Presumably both boxes were design exercises and I would assume that neither box was ever made.
(Possibly this is the other gearbox drawing added to the Archive).
I expect that around the same time the new four speed crash gearbox was also designed, which was accepted and put in production, to be followed soon after by the all new 'synchromesh' four speed gearbox.
No- from the drawing above this is another variation on the original blueprint of a 'new' four speed gearbox, note the two ball bearings on the third motion shaft and the single ball bearing on the first motion shaft among a number of other differences.
Presumably both boxes were design exercises and I would assume that neither box was ever made.
(Possibly this is the other gearbox drawing added to the Archive).
I expect that around the same time the new four speed crash gearbox was also designed, which was accepted and put in production, to be followed soon after by the all new 'synchromesh' four speed gearbox.