Rail E/F Type Coupler
E/F coupler is developed from Type E coupler, which has the same coupler head design with “E” Coupler, and same coupler shank and butt end design with type “F” coupler.
Variation of Type E/F Coupler
Like type “E” coupler and “F” coupler, according to wagon requirement, based on basic designed of “E” head and “F” shank, “E/F” couplers could have various compatible designs. Such as coupler head shelved, and extended the shank length, have been adopted in many applications.
Material of type “E/F” coupler body, knuckle and locks are AAR M-201 Grade E Steel which are casted by alloy steel and heated treated as quenching and tempering. Letter “E” will be casted on the product body indicates the material Grade “E”. There also have the case required more strong material as AAR M-201 Grade E+. Using Grade E+ for coupler body and coupler knuckle will improve the coupler material tensile strength.
All variation of type E/F coupler should be interchangeable, and have the No. 10-A contour at coupler mating lines. Coupler Contour should meet the requirement of AAR
S-106 specification same as type “E”.
Single Rotary Bottom Operation
Double Rotary Bottom Operation
<Unless specified on the order, E coupler will be fitted as Single Rotary Bottom Operating type.>
Yoke:Y40AE – AAR S-141Y41AE – AAR S-142SY40AE – AAR S-143
Yoke Key:DRAFT KEY – AAR S-121