Outside diameter------------------------------------------------------------------------------------ 7.600-7.595.
Number of teeth ------------------------------------------------------------------------------------- 17.
Depth of teeth---------------------------------------------------------------------------------------- 0.8628.
Bore before heat treatment ----------------------------------------------------------------------- 2.972-2.970.
Bore after heat treatment ------------------------------------------------------------------------- 3.0000-3.0005.
Chamfer ----------------------------------------------------------------------------------------------- 1/64 x 45.
Keyway width ---------------------------------------------------------------------------------------- 1.000-0.999.
Treatment--------------------------------------------------------------------------------------------- Heat to 1525-1550,
quench in oil,
draw; Rockwell
"C"-34-38.
j. Second Countershaft Ring Gear.
Material------------------------------------------------------------------------------------------------ C1045 steel forging.
Thickness --------------------------------------------------------------------------------------------- 2.
Outside diameter------------------------------------------------------------------------------------ 22.999-22.998.
Number of teeth ------------------------------------------------------------------------------------- 67.
Depth of teeth---------------------------------------------------------------------------------------- 0.n90.
Bore ---------------------------------------------------------------------------------------------------- 18.771-18.772.
Chamfer ----------------------------------------------------------------------------------------------- 3/16 x 45 .
Number of holes ------------------------------------------------------------------------------------ 12.
Hole diameter---------------------------------------------------------------------------------------- 25/64 drill.
k. Slow Gear.
Material------------------------------------------------------------------------------------------------ SAE 5140 steel forging.
Rough weight ---------------------------------------------------------------------------------------- 60 lb.
Finished weight-------------------------------------------------------------------------------------- 26 lb.
Outside diameter------------------------------------------------------------------------------------ 12.150-12.145.
Number of teeth ------------------------------------------------------------------------------------- 47.
Pitch---------------------------------------------------------------------------------------------------- 4/5
Width of teeth ---------------------------------------------------------------------------------------- 1 1/2.
Depth of teeth---------------------------------------------------------------------------------------- 0.5393.
Bore, before heat treatment ---------------------------------------------------------------------- 3.2005-3.1995.
Bore, after heat treatment ------------------------------------------------------------------------ 3.2500-3.2495
Number of holes ------------------------------------------------------------------------------------ 16.
Hole diameter---------------------------------------------------------------------------------------- 27/64 drill 11/16 deep;
equal; spot with 3/4
drill 3/32 deep.
Treatment--------------------------------------------------------------------------------------------- Heat to 1525-1550,
quench in oil, draw;
Rockwell "C"-34-38
l. Slow Gear . Sliding Gear.
Number required ------------------------------------------------------------------------------------ 1.
Material------------------------------------------------------------------------------------------------ A5140 fine grain
steel
Rough weight ---------------------------------------------------------------------------------------- 9 lb.
Finished weight-------------------------------------------------------------------------------------- 8 lb.
Outside diameter------------------------------------------------------------------------------------ 4.330-4.325.
Inside diameter, large------------------------------------------------------------------------------ 2.500-2.498.
Inside diameter, small ----------------------------------------------------------------------------- 2.125-2.123.
Number of teeth ------------------------------------------------------------------------------------- 16.
Depth of teeth---------------------------------------------------------------------------------------- 0.4548.
357
