PRODUCTS

The Type E coupler, designed in 1932, does not interlock in the vertical direction. While closed Type E couplers will separate only in the most extreme circumstances. This lack of a vertical interlock led to development of Type E shelf couplers and Type F and H couplers. Using varying "locking" features (e.g., top and bottom shelves and machined inter lockings), these more intricate couplers in most cases will prevent disengagement during a derailment, reducing the chances of a train jackknifing, or cars puncturing each other.

Variation of Type E Coupler

All E couplers have a basic “E” coupler head design and coupler tail with the flat hole fixed with Yoke by Draft Key. Such as E60DE, the couple is standard E design for AAR. According to customer requirement, Tedrail could supply a lot of variation of E coupler, such as with Bottom Shelf, Top Shelf or Double Shelf. And also according to the application, the coupler shank length could be adapted.

Casting Material:

Material of type E coupler body, knuckle and locks are AAR M-201 Grade C steel or AAR M-201 Grade E Steel which are casted by alloy steel and heated treated as quenching and tempering. Letter “C” or “E” will be casted on the product body indicates the material Grade. 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.

Interchangeability

All variation of type E 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.

Coupler Operating:

• Single Rotary Bottom Operation
• Double Rotary Bottom Operation
• Top Operation

Unless specified on the order, E coupler will be fitted as Single Rotary Bottom Operating type.

Connection Parts

• Yoke:
• Y40AE – AAR S-141
• Y41AE – AAR S-142
• SY40AE - AAR S-143
• Follower:
• Y44A – AAR S-119
• Yoke Key:
• DRAFT KEY – AAR S-121