Cylindrical horizontal two-stage gearbox with Novikov's meshing TsDN-630, TsDN-710

Cylindrical horizontal gearboxes with Novikov gears of general machine-building
application of standard sizes Ts2N-630, Ts2N-710 are used in drives of various machines and mechanisms for
change of torques and rotational speed.
Conditions of application:
operation for long periods of up to 24 hours per day or with periodic stops;
operation in continuous and repeated-short-term modes, i.e. under alternating loads with
periodic stops;
single direction and reversible loads;
shaft rotation in any direction;
non-aggressive environment, atmosphere of types I and II according to GOST 15150 with air dustiness not more than 10 mg/m3;
climatic versions - ?1, ?2, ??, ???-4, ?1, ?2, ?? and ?4 according to GOST 15150-69.
Unit designation
CDN - 630 - 25 - 12 M - U3, where
CDN - type,
630 - centre-to-centre distance of the low-speed stage,
25 - gear ratio,
12 - assembly variant,
M - end of the slow-speed shaft in the form of a toothed half coupling,
U3 - climatic execution and category of placement.