Track link types for Horizontal Volute Spring Suspension (HVSS) 


Introduction :

In the Summer of 1943, the Chrysler Corporation began development of "horizontal volute spring suspension and 23” center guided tracks for Medium Tank, M4 series." The "E8" modification was an effort to improve the ride and increase the mobility of the Sherman series.

Picture Type  Description
 
All Steel, Double Arc
 
T66 T66

Track, steel, T66; designated by OCM 21500, 9 September 1943

Cast steel, center guide, single pin. 

Width 23”; Pitch 6”; Pin diameter 1-1/16”, Grouser height 7/16”

First track type for HVSS.

Photo courtesy of Gary Binder.


Rubber Backed, Steel Chevron

T80 T80

Track, steel and rubber, T80; designated by OCM 24410, 13 July 1944

Rubber backed, welded steel chevron grouser, center guide, double pin. 

Width 23”; Pitch 6”; Pin diameter 1-1/4”; Grouser height 1”

In use near the end of WW2.

Photo courtesy of Gary Binder.

T80E5 T80E5

Track, steel and rubber, T80E5; designated by OCM 33510, 1950

Rubber backed, welded steel chevron grouser, center guide, double pin. 

Width 23”; Pitch 6”; Pin diameter 1-1/4”; Grouser height 1-1/2”

An Israeli variant used a rubber covering over steel chevron tread.

Photo courtesy of "armyjunk".


Rubber chevron

T84 T84 Track, rubber, chevron, T84; designated by OCM 27447, 26 April 1945

Molded rubber, center guide, double pin. 

Width 23”; Pitch 6”; Pin diameter 1-1/4"; Grouser height 1” originally, changed to 1-1/2” by OCM 29534, 25 October 1945

Post-war use only. These tracks
did not reach manufacturers before the end of Sherman production.

Photo courtesy of Walter Schwabe.



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