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
Steel, cast, single pin, 23" wide

D80072 shoe.
Designated by OCM 21500, 9 September 1943.
First track type for HVSS.
Width 23”; Pitch 6”; Pin diameter 1-1/16”, Grouser height 7/16”.
Manufacturers :
Ohio rubber, U.S. rubber.

Cast steel, center guide, single pin.

Weight per shoe : 45.0 Lbs.

Photo courtesy of Gary Binder.


Rubber Backed, Steel Chevron

T80

T80

T80

T80
T80
Rubber backed steel chevron, double pin

D7069557 shoe.

Designated by OCM 24410, 13 July 1944.

Width 23”; Pitch 6”; Pin diameter 1-1/4”; Grouser height 1”.
Manufacturers :
Goodyear, Firestone, Ohio rubber, U.S. rubber, Inland steel, Goodrich.

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

Seen "in theater" starting in January, 1945.

Link weight : 18,1 kilos / 39,91 Lbs.
Weight per shoe : 56.5 Lbs.

T80E5 T80E5
Rubber backed steel chevron, double pin

Designated by OCM 33510, 1950.

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

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

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

Photo courtesy of "armyjunk".


Rubber chevron

T84

T84

T84

T84
T84
Rubber, non-reversible, chevron
D-7048211 shoe.
Designated by OCM 27447, 26 April 1945.
Width 23”; Pitch 6”; Pin diameter 1-1/4"; Grouser height 1” originally, changed to 1-1/2” by OCM 29534, 25 October 1945
Manufacturers : Goodyear
.

Molded rubber, center guide, double pin.

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

Link weight : 15,8 kilos / 34,84 Lbs.
Weight per shoe : 48,1 Lbs.

The example shown here is a post-war manufacture, dated 1967.



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