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Single-reduction universal worm reducers, type 2Ч (2ЧМ)

assembly configurations of reducers
versions of worm-and-worm gear placing
main performance specifications
dimensions of shaft ends
overall and fitting dimensions
reference designation of reducer by order

Assembly configurations of reducers

Versions of worm-and-worm gear placing

Main performance specifications

Standard size of reducer	Reduction ratio u	*Мт, Nm**	Mass of reducer, kg
2Ч-40	8, 10, 12.5, 16, 20, 25, 31.5, 40, 50, 63, 80	26-36	6.3
2Ч-63		83-130	12.6
2Ч-80		170-260	18.5

Dimensions of shaft ends

Input shaft Output shaft

Overall and fitting dimensions

Standard size of reducer	Aw	L	L₁	L₂	L₃	L₄	L₅	L₆	В	B₁	H
Standard size of reducer	mm
2Ч-40	40	190	180	150	40	90	100	90	164	140	180
2Ч-63	63	245	220	180	60	115	135	100	196	165	225
2Ч-80	80	290	260	225	80	132	160	125	212	185	267

Standard size of reducer	H₁	d	d₁	d₂	l	l₁	b	b₁	t	t₁
Standard size of reducer	mm
2Ч-40	72	13	18	16	28	28	6	3	20.5	8.5
2Ч-63	82	13	28	22	42	36	8	4	31	11.6
2Ч-80	92	15	35	25	58	42	10	5	38	13.45

Reference designation of reducer by order:

Reducer 2Ч-63-31.5-53-1-1-Ц-УЗ, where:

2Ч – type of reducer;
63- distance between axes, mm;
31.5- reduction ratio;
53 – assembly configuration;
1 – version of worm-and-worm gear placing;
1 – version of attachment;
Ц – version of low-speed shaft end;
УЗ – climatic version and category of placing according to GOST-15150-69.

Note
Version of reducer, type 2ЧМ is similarly to type 2Ч.
Version of low-speed shaft end can be cylindrical - Ц (standard execution), tapered - К (coordinated additionally by order), hollow - П.