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Single-reduction universal worm reducers, type Ч

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
Ч-80	8, 10, 12.5, 16, 20, 25, 31.5, 40, 50, 63, 80	175-300	18
Ч-100		290-490	57
Ч-125		525-900	88
Ч-160		1050-1900	157

Dimensions of shaft ends

Overall and fitting dimensions

Standard size of reducer	Aw	L	L₁	L₂	L₃	L₄	L₅	В	B₁	В₂	В₃	В₄	В₅	H
Standard size of reducer	mm
Ч-80	80	280	225	-	-	167	-	-	-	250	220	-	-	295
Ч-100	100	373	240	200	177	225	257,5	341	218	175	140	225	450	312
Ч-125	125	437	275	230	210	261	290	363	246	230	190	230	460	396
Ч-160	160	551	350	300	245	345	373	434	286	280	230	280	560	500

Standard size of reducer	Н₁	Н₂	D	D₁	D₂	d	l	d₁	t	b	l₁	l₂	d₂	t₁	b₁
Standard size of reducer	mm
Ч-80	14	112	-	135	-	16	58	35	38	10	-	-	-	-	-
Ч-100	18	100	140	220	150	19	110	45	48,5	14	82	25	М30х2	23.45	12
Ч-125	22	111	165	275	170	19	110	55	59	16	82	30	М36х3	28.95	14
Ч-160	30	140	200	340	210	22	140	70	74,5	20	105	40	М48х3	36.33	18

Reference designation of reducer by order:

Reducer Ч-160-31.5-53-2-К-УЗ, where:

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

Note
Version of low-speed shaft end can be:
Ч-80 - cylindrical - Ц, hollow - П;
Ч-100, 125, 160 - tapered - К (standard execution), hollow - П, cylindrical -Ц (coordinated additionally by order).