PRODUCTS

Railway Wheel center has been pressed together with wheel tyre and Gibson ring to be tyred wheel. The hub is assembled with railway axle, and functioned as wheelset. According to different specification, the wheel centre can be manufactured by

MANUFACTURING SPECIFICATIONS:

FORGED, ROLLED WHEEL CENTRE

From European standard, the wheel center has to be forged and rolled. TEDRAIL can deliver the forged wheel centre as following related specifications:

• BRITISH STANDARD: BS 5892 PART 2, Railway rolling stock materials –Part 2. Specification for forged and rolled wheel centres

• EUROPEAN STANDARD: UIC 812-1Technical specification for the supply of forged or rolled wheel centres for tyred wheels for tractive and trailing stock; Quality prescriptions.

• ISO 1005-4 Railway rolling stock material – Part 4: Rolled or forged wheel centres for tyred wheels for tractive and trailing stock-Quality requirements.

Features:

• Machining: Wheel center should be full machined according to the product drawing includes hub, rim, web and etc.
• Material: strictly matching the specification.
• Test Certificate: Chemical Analysis, Tensile Test, Dimension and Surface Finish provided according to the specification. NDT- Ultrasonic and Magnetic Inspection could be done per customer request.
• Heat Treatment Delivery Status: U-untreated and N-Normalized or Normalized and Tempered.

CASTING WHEEL CENTRE

However, except the forged wheel center, according to Chinese railway standard, TEDRAIL also could offer customer qualified casting steel wheel center per following specifications:

• TB/T 1400 Techncial specification for cast steel wheel core for railway locomotive

Features:

• Material: ZG230-450, AAR M201 GRADE B, GRADE B+, GRADE C
• Machining: Wheel Center Hub and Rim is machined. Web is left for casting area.
• Test Certificate: Chemical Analysis, Tensile Test, Sectional Checking, Magnetic Particle Inspection, Dimension and Surface Checking.
• Heat Treatment Delivery Status: Normalized or Normalized and Tempered.

TEDRAIL Supply the wheel tyre for the tied wheel usage. Wheel tyre has been forged, then hot rolled according to the necessary wheel tyre drawing.

DIMENSIONS

TEDRAIL could supply wide dimension range of wheel tyre as following parameters:

MANUFACTURING SPECIFICATIONS:

Following Specifications and Tolerance are available by TEDRAIL for customers ordered:

• BRITISH STANDARD: BS 5892 PART 4, Railway rolling stock materials –Part 4. Specification for forged and rolled tyres.

• EUROPEAN STANDARD: UIC 810-1Technical specification for the supply of rough rolled non-alloy steel tyres for tractive and trailing stock

• EUROPEAN STANDARD: UIC 810-2 Technical specification for the supply of rough tyres for tractive and trailing stock - Tolerance

• CHINESE RAILWAY STANDARD: TB/T 1882 Technical specification for the supply of rough rolled wheel tyres for railway rolling stock.

• CHINESE RAILWAY STANDARD: GB 8602 Rough-Rolled tyres for railway

• ISO 1005-1 Railway rolling stock material – Part 1: Rough-Rolled tyres for tractive and trailing stock-Quality requirements.

• ISO 1005-2 Railway rolling stock material – Part 2: Tyres, wheel centers and tyred wheels for tractive and trailing stock – Dimensional, balancing and assembly requirements.

• ASTM A551 Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications

MATERIAL GRADE:

Based on our long term supply experience, TEDRAIL could supply following materials for the wheel tyres

• BS 5892-4: GRADE B1N,B2N,B3N,B4N,B5E,B6E,B7E

• UIC 810: B1N,B2N,B3N,B4B,B5E,B6E

• ASTM A551: Class A, Class AHT, Class B, Class BHT, Class C, Class CHT, Class DHT

• TB/T 1882: LG61

• GB 8602: LG60,LG65

HEAT TREATMENT DELIVERY STATUS:

• Hot Rolled status(U)

• Normalizing(N)

• Quenching and Tempering(E)

TEST CERTIFICATE

The test result are confirmed in the Certificates 3.1; 3.2 according to the EN 10204 Standard including following testing:

• Chemical Analysis

• Tensile Test

• Impact Test (KU)

• Brinell Hardness (uniformity)

• Ultrasonic Flaw Detection

• Magnetic Particle Inspection

• Dimension and Appearance Check

Gibson Ring, as well as called retaining ring is arranged between the wheel tyre and wheel center, to prevent the occurrence of relative motion. It has been pressed by Gibson Ring Rolling Machine into the wheel tyre. The Rolling Machine will press the wheel tyre to be deformed and so as to fasten the Gibson Ring.

TEDRAIL has been in producing Gibson ring for following types of A ,B,C,D according to BS5892-5：1987 or UIC 810-3 .We can also customize gibson rings according to customer drawing.