Это не в Ньютонах, а в килоНьютонах.
1 кг = 9.8 Ньютон
Тогда получается 392 килоНьютона = 40 000 кг? Что то многовато…
Скорее всего у вас ошибка. Не 392, а 39,2 CN
4 тонны нормально для каретки типоразмера 34…35 мм.
Надо учесть, что в таблицах приводится нагрузка, при которой каретка проедет 50 км, после чего сломается. 50 км это не так много для станка, как может показаться.
Если нагрузка меньше, то соответственно каретка проедет больше.
Да, это в Ньютонах
Я думал речь идет о каретках на рельсах
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