In other words, when reverse gear is selected, it is in fact " actual " gear teeth that are being meshed, with no aid from a synchronization mechanism.
32.
"' Pressure angle "'in relation to gear teeth, also known as the "'angle of obliquity "', is the angle between the tooth face and the gear wheel tangent.
33.
Testing of the XT40 began on 4 June 1948, revealing some major vibration problems from the reduction gearbox due to mis-matched noise frequencies caused by poorly designed gear teeth.
34.
The gears marked with an asterisk ( * ) are missing, or have predecessors missing, from the known mechanism; these gears have been calculated with reasonable gear teeth counts.
35.
Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next.
36.
To reduce noise, vibration, and harshness, the transmission gear teeth and engagement points were finished to within micrometres, a sound-absorbing cover was employed, and acoustic analysis was performed to evaluate noise emissions.
37.
For sterling currency, ?/ s / d ( and even farthings ), there were variations of the basic mechanisms, in particular with different numbers of gear teeth and accumulator dial positions.
38.
This may include the fundamental or harmonic emissions based on the electric services used, the gearing between shaft and engine and also the combination of gear teeth used in the ratio ( s ).
39.
Higher gear ratios allow much faster retrieval of line, but sacrifice some amount of strength in exchange, since the additional gear teeth required reduces torque as well as the strength of the gear train.
40.
Designing is done prior to manufacturing and includes calculation of the gear geometry, taking into account gear strength, wear characteristic of the gear teeth, material selection, gear alignment and provision for lubrication of gear.
