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JonathasThe coupler they suggested are quite suitable to replace old ones. Price is reasonable, and looking forward to receive the thhem.
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JoseThe DF8B spare parts I got are all correct. Lead time is fast, and anytime I have problems, Sunny are always here to help me. Thanks her a lot,and looking forward to our future cooperation again.
AAR Standard Train Knuckle Coupler High Strength Casting Processed

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xProduct Name | Knuckle | Railway Casting Parts Coupler & Buffer Device AAR Standard Knuckle | AAR M-210 Grade E Steel |
---|---|---|---|
Average Fatigue Life | Average Fatigue Life ≥1,000,000 Cycles. | Product Features | High Strength Structure |
Highlight | AAR Standard Train Knuckle Coupler,Train Knuckle Coupler Casting Processed,train car knuckle Casting Processed |
Product overview
A knuckle for a railway car coupler system comprising a front face generally opposite a pulling face; a cast utility hole extending into a top surface of the knuckle; a pivot pin hole extending from a top surface of the knuckle to a bottom surface of the knuckle; and a tail portion. The knuckle is free of internal voids and its front portion has a plurality of ribs defining front external weight reduction pockets. The tail portion has a second plurality of ribs defining rear external weight reduction pockets. Further, the knuckle is produced by investment casting to create a smoother pulling face, free of parting lines/draft angles.
Product advantages
1. Improved surface finish: Reduces amount of stress risers; Minimizes crack initiation
2. Optimum design and casting process
3. Consistent dimensions
4. Casting are 100% hardness tested, gaged, MPI inspected, fit and operated to ensure quality
5. Available a individual coupler bodies or completely assembled fits.
Product specification
item | value |
Product Name | Railway Couplings Knuckle |
Material | AAR M-210 Grade E steel |
Type | E-Knuckle E50BEV |
Average fatigue life | ≥1,000,000 cycles. |
Standard | AAR M-216, AAR M-215 |
Fits for | all E and E/F couplers |
MOQ | 100pcs |
Technics | casting |
Product Features | High Strength Structure |
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