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Wheels, Tires and Hubs

270103j. Parts Technician. Wheels, Tires and Hubs. Material Identification and Calculations. First Period. Figure 1 - Bias-ply construction. Figure 2 - Bias-belted construction. Figure 3 - Radial-belted construction. Figure 4 - Metric/imperial tire size format.

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Wheels, Tires and Hubs

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  1. 270103j Parts Technician Wheels, Tires and Hubs Material Identification and Calculations First Period

  2. Figure 1 - Bias-ply construction.

  3. Figure 2 - Bias-belted construction.

  4. Figure 3 - Radial-belted construction.

  5. Figure 4 - Metric/imperial tire size format.

  6. Figure 5 - Wear, traction and temperature ratings.

  7. Figure 6 - Side wall markings including load and speed ratings.

  8. Table 1 - Tire speed rating letters with corresponding speeds.

  9. Table 2 - Tire load index rating numbers with corresponding weights.

  10. Figure 7 - Load rating.

  11. Table 3 - Tire load range rating letters with corresponding plys.

  12. Figure 8 - Tire manufacturers date code. (Photographed at Smart Automotive)

  13. Figure 9 - Space-saver spare tire.

  14. Figure 10 - Tread block design.

  15. Figure 11 - A stamped steel wheel.

  16. Figure 12 - Safety beads built into rim design.

  17. Figure 13 - Alloy wheels.

  18. Figure 14 - Markings on a wheel indicating direction of rotation.

  19. Figure 15 - Wheel specifications stamped on rim.

  20. Figure 16 - Rim offset.

  21. Figure 17 - Valve stem, Schrader valve and valve stem extensions.

  22. Figure 18 - Wheel mount flange and studs.

  23. Figure 19 - Wheel nuts. (Courtesy Toyota Canada Inc.)

  24. Figure 20 - Tube type tire and multi-piece disc wheel.(Courtesy Freightliner of Canada Ltd.)

  25. Figure 21 - Tubeless tire and disc wheel. (Courtesy Freightliner of Canada Ltd.)

  26. Figure 22 - Tire tread designs. (Courtesy Freightliner of Canada Ltd.)

  27. Figure 23 - Two styles of split rims.

  28. Figure 24 - Use care when off-loading inflated tires.(Courtesy Accuride Corporation)

  29. Figure 25 - Cross-section of a five-piece rim assembly.(Courtesy Terex Americas - A Terex Company)

  30. Figure 26 - Spoke wheel and hub assembly.(Reproduced with permission of Ford Motor Co.)

  31. Figure 27 - Six-spoke wheel with a multi-piece rim assembly.(Courtesy Freightliner of Canada Ltd.)

  32. Figure 28 - Mounted hardware for spoke wheel.

  33. Figure 29 - 10-bolt disc wheel.

  34. Figure 30 - Hub designs with brake drums attached.(Courtesy General Motors of Canada Limited)

  35. Figure 31 - Installed spacer and samples used in a dual tire application.(Courtesy Freightliner of Canada Ltd.)

  36. Figure 32 - Truck tire size.

  37. Figure 33 - Tire cross-section with measurements defined.(Courtesy Freightliner of Canada Ltd.)

  38. Figure 34 - Truck tire markings.

  39. Figure 35 - Wheel stud and tapered nut. (Courtesy Freightliner of Canada Ltd.)

  40. Figure 36 - Inner cap nut used to retain the inner wheel on a dual arrangement. (Courtesy Accuride Corporation)

  41. Figure 37 - Flange-style wheel nut. (Courtesy Freightliner of Canada Ltd.)

  42. Figure 38 - Hub-piloted dual wheel arrangement with flange nut installed.(Courtesy Accuride Corporation)

  43. Figure 39 - Static imbalance. (Courtesy Toyota Canada Inc.)

  44. Figure 40 - Dynamic imbalance. (Courtesy Toyota Canada Inc.)

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