Cylindrical two-stage crane reducers RM-250… RM-1000

Cylindrical two-stage crane reducers RM of general purpose (RM-250, RM-350, RM-400, RM-500, RM-650, RM-750, RM-850, RM-1000). They are designed to change torques and reduce speed. The RM gearbox is operated in macroclimatic regions. With temperate (version U) and dry, as well as humid tropical (version T) climates. Categories 1, 2, 3, 4 GOST 15150-69.

Cylindrical two-stage crane reducers – conditions of use of reducers:

• constant and variable, unidirectional and reversible load;
• work is long or with periodic stops, rotation to the side;
• the rotation frequency of the input shaft must exceed 1500 rpm;
• ambient temperature from -40°C to +50°C;
• increased dustiness, non-aggressive environment;
• climatic versions U, T (for accommodation category 1…4) according to GOST 15150-69.

Overall and connecting dimensions of RM-250, RM-350, RM-400, RM-500 gearboxes

Type size	av	aw2	L	L 1	L 2	l	l 1	l 2	l 3	l 4	l 5
RМ-250	250	150	540	200	238,5	320	235	45	50	189	249
RМ-350	350	200	710	260	268,5	415	310	5P	60	238	280
RМ-400	400	250	816	270	325,5	440	370	80	75	288	367
RМ-500	500	300	986	330	330	620	480	110	87	338	420

Type size	B	V1	B2	Х	H 1	ch	d	mass, kg
RМ-250	230	190	230	312	160	22	17	85
RМ-350	270	250	290	400	200	23	17	145
RМ-400	300	270	310	490	250	25	17	210
RМ-500	350	310	350	592	300	25	17	390

Overall and connecting dimensions RM-650, RM-750, RM-850, RM-1000

Type size	av	y2	L	l 1	L 2	l	l 1	l 2	l 3	l 4	l 5
RМ-650	650	400	1278	430	430	830	490	215	155	445	460
RМ-750	750	450	1448	450	475	1025	620	275	230	491	525
RМ-850	850	500	1632	510	550	1100	610	300	205	546	530
RМ-1000	1000	600	1896	550	695,5	1350	870	350	250	639	645

Type size	B	V1	B2	B3	Х	H1	H2	ch	d	мass, kg
RМ-650	470	410	470	318	697	320	95	35	25	878
RМ-750	510	450	510	356	743	320	130	35	25	1030
RМ-850	580	520	580	408	875	400	105	35	32	1230
RМ-1000	660	590	660	472	965	400	200	40	32	2122

Dimensions of the ends of the input shafts

Type size	d	d1	d3	d4 (no more)	l	l1	b	ch	t
RМ-250	30	27,10	М20×1,5	50	80	58	5	5	3
RМ-350	40	35,90	M24x2	63	110	82	10	8	5
RМ-400	40	35,9	M24x2	63	110	82	12	8	5
RМ-500	50	45,9	М36х3	70	110	82	16	10	6
RМ-650	60	54,75	M42xZ	94	140	105	16	10	6
RМ-750	60	54,75	M42xZ	94	140	105	16	10	6
RМ-850	90	83,50	M64x4	130	170	130	22	14	9
RМ-1000	90	83,50	M64x4	130	170	130	22	14	9

Dimensions of the RM of the ends of the output shafts

Type size	d m6	d1	b	l	t
RМ-250	55	65	16	82	60
RМ-350	55	65	16	82	60
RМ-400	80	90	22	123	88
RМ-500	80	90	22	123	88
	95	115	25	130	104
RМ-650	110	130	28	165	120
RМ-750	125	145	32	165	136
RМ-850	130	150	32	200	141
RМ-1000	150	170	36	200	162

You can find a wider list of gear motors on our website.

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