Thomas C. Wilson Tube Tools
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BOILER TUBE EXPANDERS

EXPANDERS

Male-Female Universal Joints

Male-Female Universal Joints
Male-Female Universal Joints
The Male-Female Universal Joint is suitable for use in superheater headers. It has the same features as the Model GP Universal Joint. It is a male-female square type, smoothly rotating and deflecting upon a common axis. It has unusual strength for its size and is popular with all boiler makers. Minimum working angle is 135°.
 
Square Size Square Size Overall Length Major Dia. Part No.
Female Male
3/8" 3/8" 2-1/2" 7/8" 42803
1/2" 1/2" 2-19/32" 1" 21285
*1/2" 1/2" 2-3/8" 1" 21356
3/4" 3/4" 3-9/32" 1-1/2" 21286
1" 1" 4" 1-3/4" 21287
Male-Female Universal Joint, Part no. 21356, is extremely short and most suitable for work in crowded super-heater headers. It is only used with shortened shanks of expander mandrels.