- Overall dimensions of machines ЧМТ-1 and ЧМТ-1 (3):
– length – 970 mm;
– width – 520 mm;
– height -1750 mm.
- The range of reproduced axial loads is from 59 up to 9 800 N [from 6 up to 1 000 kgf]. The error the reproduced axial loads doesn’t exceed ± 1 %.
- The threshold response of the load system of machines ЧМТ-1 and ЧМТ-1 (3), modified to the axial load, doesn’t exceed 5,0 N [0,5 kgf].
- The value of the frictional moment in the friction unit, causing automatic stop of tests, makes (1 180 ± 25) N·cm [(120 ± 2,5) kgf·cm].
- The runout of the upper ball, measured on its surface, in the point being 2 mm distant vertically up from its bottom point, perpendicularly to the tangent, drawn through the measurement point, doesn’t exceed 0,03 mm.
- The duration of tests: 10 s or 60 min. The absolute error of the tests duration: in the mode “10 s” – not exceeding ± 0,2 s; in the mode “60 min” – not exceeding ± 0,5 min.
- The runout of the machine spindle rotation after stopping the tests doesn’t exceed five rotations.
- The range of temperature adjustment of the friction unit: from the ambient air temperature up to 300 °С.
- The error of keeping the friction unit temperature within the range from the ambient air temperature up to 300 °С doesn’t exceed ± 5 °С.
- The warm-up period of the friction unit from the ambient air temperature up to 300 °С doesn’t exceed 35 min.
- By the stability to the effect of temperature and dampness of the ambient air the machines correspond to УХЛ performance of category 4.2 according to GOST 15150-69 by the ambient air temperature from plus 10 °C up to plus 35 °С.
- By the degree of protection from the effect of the ambient environment the machines correspond to a common performance according to GOST 12997-84.