|
Rough steel tyres for railway-wheels
|
||
|
Material Electric steel, grade B2, B3, B4, and B5 with the chemical composition and the mecanichal characteristics according to UIC 810-1 |
|
|
| Dimensions, weight and limit tolerances of the rough tyre | ||
| Dimensions and limit tolerances [mm] | Weght [Kg/pcs.] | Dimensions of the machined tyre [mm] | |||
| D +8/0 | d 0/-10 | B +4/-1 | I + 3/0 | ||
| 786 | 620 | 138 | 40 | 240 | 780 x 630 x 135 |
| 786 | 620 | 143,5 | 40 | 245 | 780 x 630 x 140 |
| 860 | 690 | 138 | 40 | 260 | 850 x 700 x 135 |
| 926 | 760 | 138 | 40 | 264 | 920 x 770 x 135 |
| 956 | 790 | 138 | 40 | 274 | 950 x 800 x 135 |
| 1006 | 840 | 138 | 40 | 288 | 1000 x 850 x 135 |
| 1006 | 842 | 143,5 | 30 | 292 | 1000 x 850 x 140 |
| 1006 | 842 | 143,5 | 40 | 294 | 1000 x 850 x 140 |
| 1106 | 936 | 143,5 | 30 | 344 | 1100 x 950 x 140 |
| 1256 | 1086 | 143,5 | 30 | 382 | 1250 x 1100 x 140 |
Shape deviations
According to UIC 810 - 2
| Out-of-roudness of the rim diameter | max. 2,5 mm |
| Eccentricity of the external revolution surface against the internal one, measured in the plane of rim | max. 2 mm |
| Taper of the internal surface of the tyre | max. 2 mm |
| Deviation from the flatness of the generatrix of the internal tyre lateral surface | max. 2 mm |
Delivery state, delivery
| Delivery state | Delivery |
| Rough rolled, normalized (N) | Without packing and unprotected to corrosion |
| Rough rolled, hardened and tempered (T) |