Railway Spring
INTRODUCE :
Kingrail Parts supplies various springs for freight cars, passenger cars and locomotives, such as railway bogie springs, railway air brake cylinder springs, bogie suspension springs, draft gear springs for coupler systems and many more. In addition, we also offer AAR standard freight truck springs. This includes main suspension (loaded) D-springs, side springs and double rate springs. All springs are available to AAR standards.
Spring type:
* Coiled coil spring/compression spring
* Volute spring
* Leaf spring
Material:
Kingrail Parts can supply the following spring materials according to the customer's preferred requirements:
DIN 17221
* Silicon-manganese steel 38Si7 ,54SiCr6 ,60SiCr7
* Chrome-vanadium steel 55Cr3, 50CrV4 ,51CrMoV4
BS EN 10089
* Silicon manganese steel: 46Si7, 56Si7, 54SiCr6, 61SiCr7
* Chrome-vanadium steel: 51CrV4, 52CrMoV4, 60CrMo3-1
JIS G4801
* Silicon-Manganese Steel: SUP 6, SUP 7, SUP 9, SUP 9A
* Chromium-Vanadium Steels: SUP 10, SUP 11 A, SUP 12, SUP 13
ASTM A689
Coil Spring/Compression Spring
Kingrail Parts supplies helical coil springs and compression springs for bogie suspension, coupler draft gear and other applications.
Feature:
* Round, square, rectangular cone, flat or any special shape.
* Wire diameter: up to 80mm
* Outer diameter: up to 500mm
* Free height: maximum 1200mm
* Other requirements according to customer drawings
Standard:
* EN13298 Railway Applications - Suspension Components - Helical Suspension Springs, Steel
* UIC 822 Technical Specification for Coil Compression Spring Supply, Hot or Cold, Towing and Trailer
* AAR M-114 Coil Spring, Heat Treated Steel
* TB/T 2211 Steel coil spring suspension mechanism for rolling stock
* IS:4454 Wire for Mechanical Springs - Specifications
Standard:
Kingrail Parts can also supply the following AAR standard truck spring products:
| p/n | Spring Type |
Outside Diameter |
Solid Height | Free Height | Capacity (lbs) |
Scrap Free Height |
Weight (lbs) |
| D7 INNER | Side Spring | 3.50 | 6.56 | 10.75 | 4108 | 10.00 | 8.08 |
| D7 OUTER | Side Spring | 5.50 | 6.56 | 10.81 | 8642 | 10.00 | 19.53 |
| D2 INNER | Primary Suspension Load Spring | 2.94 | 6.63 | 8.25 | 5386 | 7.94 | 7.03 |
| D2 OUTER | Primary Suspension Load Spring | 5.50 | 6.63 | 8.25 | 15959 | 7.94 | 23.76 |
| D3 INNER | Primary Suspension Load Spring | 3.25 | 6.56 | 9.06 | 4299 | 8.63 | 7.66 |
| D3 OUTER | Primary Suspension Load Spring | 5.50 | 6.56 | 9.06 | 10721 | 8.63 | 21.33 |
| D4 INNER | Primary Suspension Load Spring | 3.38 | 6.56 | 9.63 | 3433 | 9.06 | 7.75 |
| D4 OUTER | Primary Suspension Load Spring | 5.50 | 6.56 | 9.63 | 9128 | 9.06 | 20.24 |
| D5 INNER | Primary Suspension Load Spring | 3.38 | 6.56 | 10.31 | 4204 | 9.63 | 7.82 |
| D5 OUTER | Primary Suspension Load Spring | 5.50 | 6.56 | 10.25 | 8266 | 9.63 | 19.6 |
| D6 INNER | Primary Suspension Load Spring | 3.44 | 6.56 | 9.94 | 4707 | 9.31 | 8.28 |
| D6A INNER | Primary Suspension Load Spring | 2.00 | 5.69 | 9.00 | 1536 | 8.38 | 2.5 |
SPECIFICATIONS :
Volute Spring
Feature:
* Flat thickness: up to 25mm
* Flat width: up to 300mm
* Bore diameter: up to 250mm
* Height: up to 750mm
*Other requirements for each drawing
* Parabolic leaf spring
Feature:
* Flat thickness: up to 25mm
* Flat width: up to 300mm
*Other requirements for each drawing
Paints and Coatings:
* Synthetic enamel, powder coating, phosphate, zinc coating, etc.
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Please contact us with any concerns or questions you have.