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Freight Wheels
AAR Wheel Types for Freight Car Service (M107)
| AAR Type | J33 |
M33 |
P33 |
H36 |
J36 |
B38 |
C38 |
| Intended Max Car Capacity (Tons) |
70 |
70 |
70 |
100 |
100 |
125 |
125 |
| Intended Max. Axle (RWS) | 6 x 11 |
6 x 11 |
7 x 12 |
6 1 / 2 x 12 |
6 1 / 2 x 12 |
7 x 12 |
7 x 12 |
| Tread Type | 1W |
2W |
MW |
1W |
2W |
1W |
2W |
| Max. Load Capacity Per Wheel (lbs.) |
27,500 |
27,500 |
27,500 |
32,875 |
32,875 |
39,375 |
39,375 |
| Rim Thickness (in.) | 1 1 / 4 |
2 |
2 1 / 2 |
1 1 / 2 |
2 |
1 1 / 2 |
2 |
| Rim Width (in.) | 5 22 / 32 + 1 / 8 |
5 22 / 32 + 1 / 8 |
5 22 / 32 + 1 / 8 |
5 22 / 32 + 1 / 8 |
5 22 / 32 + 1 / 8 |
5 22 / 32 + 1 / 8 |
5 22 / 32 + 1 / 8 |
| Plate Thickness (in.) | 5 / 8 |
5 / 8 |
3 / 4 |
3 / 4 |
3 / 4 |
7 / 8 |
7 / 8 |
| Hub Wall (Min.) | 1 1 / 8 |
1 1 / 8 |
1 1 / 8 |
1 1 / 8 |
1 1 / 8 |
1 1 / 4 |
1 1 / 4 |
Passenger and Locomotive Wheels
Standard Steel currently manufactures a variety of types and sizes wheels for the passenger/transit markets. Full specifications and quotes are available by contacting a sales representative.