| 摘要 |
FIELD: transport engineering. SUBSTANCE: length of arc of top of each tooth on brake disk is smaller than length of arc of base for each tooth space limited by two opposite inclined of adjacent teeth. Inclined sides of each tooth at side of tooth base change into first radius, and each first radius, in its turn, changes into second radius which forms bottom of tooth space, being common for two opposite sides. EFFECT: improved reliability. 7 cl, 4 dwg
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