Staring Motor Reducers

Introduction

QJ series of Staring Motor Reducers are widely used as operational mechanism in series of cranes. The machines are also found in transporting, metallurgy, mining, chemical industry, building and light industries.

Main Features:

Wide range of reducing ratio, the nominal ratio from 10 to 200;

Higher transmission efficiency, with 96% for double-step and 94% for three-step reducers;

Operating smoothly and low noise;

Long service life and high loading capacity;

Easy to disassembly, check and install.

Operational Conditions:

Circumferential speed no more than 16 m/s;

Rotating speed of high axle no more than 1000 r/min;

Actuating temperature ranging from --40 to 45℃;

Operating positively and inversely.

Model Description

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Overall Dimension

QJR-D （QJB-D）Overall Dimension

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Norminal Center Space a₁	a₂	a₀₂	Overall Dimension			Center Height	Input Axle End			Foundation Assembling Size							A	B₁	n	G₁	e₁	Weight (kg)
Norminal Center Space a₁	a₂	a₀₂	L	H	B	h	N	d₂	I₂	S	S₁	S₂	S₃	C	P	No. of Hole	A	B₁	n	G₁	e₁	Weight (kg)
140	100	240	494	305	220	140	120	22	50	175	380		190	22	18	6	430	190	25	172	115	110
170	118	288	577	365	250	170	135	28	60	265	460		230	25	18	6	513	215	27	197	138	170
200	140	340	664	425	270	200	180	32	80	230	550		275	25	18	6	600	250	25	222	165	230
236	170	406	796	497	330	236	210	38	80	280	660		330	28	23	6	716	300	30	265	195	310
280	200	480	925	585	360	280	235	48	110	310	780		390	30	23	6	845	340	33	303	230	415
335	236	571	1100	695	430	335	255	55	110	370	940		450	35	27	6	1006	400	35	362	280	840
400	280	680	1380	830	510	400	285	65	140	450	1100		550	40	27	6	1195	490	50	422	325	1014
450	315	765	1462	930	590	450	310	80	170	490	1240	1000	600	40	33	8	1350	550	55	481	370	1360
500	355	855	1622	1030	640	500	350	90	170	540	1390	1120	670	45	33	8	1510	620	60	531	415	2250
560	400	960	1822	1160	710	560	385	100	210	600	1550	1250	750	50	39	8	1690	690	70	596	460	3325
630	450	1080	2037	1300	770	630	425	110	210	650	1750	1410	850	55	39	8	1905	770	80	666	520	4370
710	500	1210	2278	1460	860	710	450	120	210	740	1960	1580	950	60	45	8	2130	868	85	744	585	6140
800	560	1360	2538	1640	980	800	490	130	250	830	2195	1770	1060	65	45	8	2390	980	100	824	650	7840
900	630	1530	2860	1840	1100	900	540	150	250	950	2480	2000	1200	70	52	8	2700	1130	110	930	740	11280
1000	710	1710	3200	2040	1200	1000	610	170	300	1050	2750	2220	1320	75	52	8	3020	1220	135	1040	815	16380

QJS-D （QJC-D）Overall Dimension

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Nomi-nal Center Space a₁	a₁	a₂	a₀₃	Over Dimension			Center Height h	Input Axle End			Foundation Assembling Size							A	B₁	n	G₁	e₁	Weight (kg)
Nomi-nal Center Space a₁	a₁	a₂	a₀₃	L	H	B	Center Height h	N	d₂	I₂	S	S₁	S₂	S₃	C	P	No. of Hole	A	B₁	n	G₁	e₁	Weight (kg)
140	100	71	311	560	305	220	140	120	18	40	175	450		200	22	18	6	496	190	25	172	117	125
170	118	85	373	652	365	250	170	135	22	50	205	535		235	25	18	6	588	215	27	197	138	180
200	140	100	440	750	425	275	200	180	28	60	230	635		275	25	18	6	686	250	25	222	165	250
236	170	118	524	896	497	330	236	210	32	80	280	750		330	28	23	6	816	300	30	265	195	370
280	200	140	620	1045	585	360	280	235	38	80	310	900		390	30	23	6	965	340	33	303	230	650
335	236	170	741	1245	695	430	335	255	45	110	370	1050	750	450	35	27	8	1151	400	35	362	280	965
400	280	200	880	1461	830	510	400	285	50	110	450	1270	900	550	40	27	8	1367	490	50	422	325	1420
450	315	224	989	1651	930	590	450	310	55	110	490	1425	1000	600	40	33	8	1539	550	55	481	370	1520
500	355	250	1105	1832	1030	640	500	350	60	140	540	1600	1120	670	45	33	8	1720	620	60	531	415	2500
560	400	280	1240	2062	1160	710	560	385	70	140	600	1780	1250	750	50	39	8	1930	690	70	596	460	3300
630	450	315	1395	2307	1300	770	630	425	80	170	650	2010	1410	850	55	39	8	2175	770	80	666	520	4740
710	500	355	1565	2583	1460	860	710	450	90	170	740	2265	1580	950	60	45	8	2435	868	85	744	585	6240
800	560	400	1760	2883	1640	980	800	490	100	210	830	2535	1770	1060	65	45	8	2735	980	100	824	650	8730
900	630	450	1980	3240	1840	1100	900	540	110	210	950	2860	2000	1200	70	52	8	3080	1130	110	930	740	11970
1000	710	500	2210	3620	2040	1200	1000	610	130	250	1050	3170	2220	1320	75	52	8	3440	1220	135	1040	815	17000

QJRS-D （QJD-D）Overall Dimension

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Nominal Center Space a₁	a₂	a₃	Overall Dimension			Center Height h	Input Axle End			Foundation Assembling Size							A	B₁	n	G₁	e₁	Weight (kg)
Nominal Center Space a₁	a₂	a₃	L	H	B	Center Height h	N	d₂	I₂	S	S₁	S₂	S₃	C	P	No. of Hole	A	B₁	n	G₁	e₁	Weight (kg)
140	100	71	494	305	220	140	120	18	40	175	380		190	22	18	6	430	190	25	172	115	125
170	118	85	577	365	250	170	135	22	50	205	460		230	25	18	6	513	215	27	197	138	180
200	140	100	664	425	275	200	180	28	60	230	550		275	25	18	6	600	250	25	222	165	250
236	170	118	796	497	330	236	210	32	80	280	660		330	28	23	6	716	300	30	265	195	340
280	200	140	925	585	360	280	235	38	80	310	780		390	30	23	6	845	340	33	303	230	600
335	236	170	1100	695	430	335	255	45	110	370	940		450	35	27	6	1006	400	35	362	280	870
400	280	200	1289	830	510	400	285	50	110	450	1100		550	40	27	6	1195	490	50	422	325	1085
450	315	224	1462	930	590	450	310	55	110	490	1240	1000	600	40	33	8	1350	550	55	481	370	1420
500	355	250	1622	1030	640	500	350	60	140	540	1385	1120	670	45	33	8	1510	620	60	531	415	2380
560	400	280	1872	1160	710	560	385	70	140	600	1550	1250	750	50	39	8	1690	690	70	596	460	3511
630	450	315	2037	1300	770	630	425	80	170	650	1750	1410	850	55	39	8	1905	770	80	666	520	4740
710	500	355	2278	1460	860	710	450	90	170	740	1960	1580	950	60	45	8	2130	868	85	744	585	6240
800	560	400	2538	1640	980	800	490	100	210	830	2195	1770	1060	65	45	8	2390	980	100	824	650	8490
900	630	450	2860	1840	1100	900	540	110	210	950	2480	2000	1200	70	52	8	2700	1130	110	930	740	11700
1000	710	500	3200	2040	1200	1000	610	130	250	1050	2750	2220	1320	75	52	8	3020	1220	135	1040	815	16700

QJR （QJB）Overall Dimension

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Nominal Center Space a₁	a₂	Overall Dimension		L	H	n	k	b₀（⁰_-0.5）	f（^+0.1₀）	g h_g	d₄	e₂₀	s	r	e₁	Weight (kg)
Nominal Center Space a₁	a₂	d₂	L₂	L	H	n	k	b₀（⁰_-0.5）	f（^+0.1₀）	g h_g	d₄	e₂₀	s	r	e₁	Weight (kg)
140	100	22	50	505	320	120	130	190	16	130	12	320	12	170	50	59
170	118	28	60	600	386	135	140	215	18	150	15	380	14	202	60	85
200	140	32	80	707	455	180	195	250	20	170	18	450	17	232	70	133
236	170	38	80	828	518	210	225	300	20	200	18	530	17	272	85	240
280	200	48	110	974	584	235	250	335	25	240	22	630	22	314	100	330
335	236	55	110	1156	735	255	280	400	25	270	26	750	27	375	120	590
400	280	65	140	1387	867	285	340	475	30	320	33	900	27	447	140	850
450	315	80	170	1547	990	310	365	530	30	360	33	1000	32	506	160	1300
500	355	90	170	1720	1130	350	410	600	40	400	39	1120	32	554	180	1760
560	400	100	210	1922	1270	385	445	670	40	430	39	1250	37	626	200	2600
630	450	110	210	2156	1380	425	495	750	40	480	45	1400	37	704	225	3550
710	500	120	210	2433	1540	450	565	850	50	530	45	1600	42	781	250	4900
800	560	130	250	2739	1712	490	615	950	50	580	52	1800	42	880	280	6600
900	630	150	250	3043	1910	540	670	1060	50	650	62	2000	47	987	320	9200
1000	710	170	300	3384	2150	610	740	1180	60	720	70	2240	55	1074	360	12000

QJS（QJC）Overall Dimension

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Nominal Center Space a₁	a₂	a₀₃	Input Axle End		L	H	n	k	b₀（⁰_-0.5）	f（^+0.1₀）	g (h_g)	d₄	e₃₀	s	r	e₂	Weight (kg)
Nominal Center Space a₁	a₂	a₀₃	d₂	L₂	L	H	n	k	b₀（⁰_-0.5）	f（^+0.1₀）	g (h_g)	d₄	e₃₀	s	r	e₂	Weight (kg)
140	100	71	18	40	567	320	120	130	190	16	130	12	380	12	170	40	64
170	118	85	22	50	673	386	135	140	215	18	150	15	450	14	202	48	95
200	140	100	28	60	793	455	180	195	250	20	170	18	530	17	232	56	170
236	170	118	32	80	928	518	210	225	300	20	200	18	630	17	272	67	256
280	200	140	38	80	1024	584	235	250	335	25	240	22	750	22	314	80	350
335	236	170	45	110	1301	735	255	280	400	25	270	26	900	27	375	95	654
400	280	200	50	110	1559	867	285	340	475	30	320	33	1060	27	447	112	940
450	315	224	55	110	1736	990	310	365	530	30	360	33	1180	32	506	125	1400
500	355	250	60	140	1930	1130	350	410	600	40	400	39	1320	32	554	140	1850
560	400	280	70	140	2162	1270	385	445	670	40	430	39	1500	37	626	160	2800
630	450	315	80	170	2426	1380	425	495	750	40	480	45	1700	37	704	180	3500
710	500	355	90	170	2738	1540	450	565	850	50	530	45	1900	42	781	200	4700
800	560	400	100	210	3084	1712	490	615	950	50	580	52	2120	42	880	225	6400
900	630	450	110	210	3423	1910	540	670	1060	50	650	62	2360	47	987	250	9000
1000	710	500	130	250	3804	2150	610	740	1180	60	720	70	2650	55	1074	280	11700

QJRS （QJD）Overall Dimension

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Nomi-nal Center Space a₁	a₂	a₃	Overall Dimension		L	H	n	k	b₀（⁰_-0.5）	f（^+0.1₀）	g h_g	d₄	e3₀	s	r	e₁	Weight (kg)
Nomi-nal Center Space a₁	a₂	a₃	d₂	L₂	L	H	n	k	b₀（⁰_-0.5）	f（^+0.1₀）	g h_g	d₄	e3₀	s	r	e₁	Weight (kg)
140	100	71	18	40	505	298	120	130	190	16	130	12	320	12	170	50	64
170	118	85	22	50	600	375	135	140	215	18	150	15	380	14	202	60	94
200	140	100	28	60	707	440	180	195	250	20	170	18	450	17	232	70	185
236	170	118	32	80	828	500	210	225	300	20	200	18	530	17	272	85	284
280	200	140	38	80	974	562	235	250	335	25	240	22	630	22	314	100	380
335	236	170	45	110	1156	710	255	280	400	25	270	26	750	27	375	120	650
400	280	200	50	110	1387	836	285	340	475	30	320	33	900	27	447	140	930
450	315	224	55	110	1547	980	310	365	530	30	360	33	1000	32	506	160	1410
500	355	250	60	140	1720	1060	350	410	600	40	400	39	1120	32	554	180	1820
560	400	280	70	140	1922	1240	385	445	670	40	430	39	1250	37	626	200	2890
630	450	315	80	170	2156	1370	425	495	750	40	480	45	1400	37	704	225	3550
710	500	355	90	170	2433	1530	450	565	850	50	530	45	1600	42	781	250	4900
800	560	400	100	210	2739	1691	490	615	950	50	580	52	1800	42	880	280	6600
900	630	450	110	210	3043	1900	540	670	1060	50	650	62	2000	47	978	320	9200
1000	710	500	130	250	3384	2070	610	740	1180	60	720	70	2240	55	1074	360	12000

Installing and Assembling Form

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Type and Size of Output Axle Ends

QJR, QJS, QJRS Series Reducers

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Nomi-nal Center Space	Type P				Type C											Type H
a₁	d_0(r6)	L₀	b₀	t₀	m × z	D	D₁	D₂	D₃	B₁	B₂	B	E	L₁	L₂	m × z	d_a	La	d₅	M	d₆	L₆	L₇	K¹
a₁	d_0(r6)	L₀	b₀	t₀	m × z	D	(F8)	D₂	D₃	B₁	B₂	B	E	L₁	L₂	h₆	d_a	La	d₅	M	(k6)	L₆	L₇	K¹
140	48	82	14	51.5												3*15	48	35	25	6	40	23	12	150
170	55	82	16	59												3*18	57	35	30	6	50	27	12	160
200	65	105	18	69												3*22	69	40	40	8	60	30	16	215
236	80	130	22	85	3*56	174	90	40	135	279.5	253	25	25	45	60	3*27	84	45	50	8	70	30	16	245
280	90	130	25	95	4*56	232	120	40	170	302.5	271	35	25	50	75	5*18	95	55	60	8	80	35	16	285
335	110	165	28	116	4*56	232	120	40	170	339.5	308	35	25	50	75	5*22	115	60	70	10	100	40	20	315
400	130	200	32	137	6*56	348	170	45	260	402	370	40	32	76	100	5*26	135	75	90	10	120	45	20	375
400	（140）	200	(36)	(148)	6*56	348	170	45	260	402	370	40	32	76	100	5*26	135	75	90	10	120	45	20	375
450	150	200	36	158	6*56	348	170	45	260	429	397	40	32	76	100	5*30	155	80	100	12	140	50	25	400
500	170	240	40	179	8*54	448	200	105	260	482	442	50	32	78	100	5*34	175	90	120	12	160	55	25	445
500	（180）	240	(45)	(190)	8*54	448	200	105	260	482	442	50	32	78	100	5*34	175	90	120	12	160	55	25	445
560	190	280	45	200	10*48	500	200	105	280	570	505	60	35	78	110	5*38	195	100	140	12	180	55	25	480
560	（220）	280	45	(210)	10*48	500	200	105	280	570	505	60	35	78	110	5*38	195	100	140	12	180	55	25	480
630	220	280	50	231	10*54	560	250	140	380	620	550	65	40	80	120	8*26	216	110	160	12	190	60	25	530
710	250	330	56	262	12*48	600	270	150	420	700	620	75	45	88	130	8*30	248	125	180	16	220	60	32	600
710	（260）	330	56	(272)	12*48	600	270	150	420	700	620	75	45	88	130	8*30	248	125	180	16	220	60	32	600
800	280	380	63	292	12*54	672	290	170	480	776	696	75	45	95	130	8*34	280	140	200	16	250	60	32	650
900	320	380	70	334	12*58	720	310	180	560	850	770	85	60	105	140	8*38	312	155	220	20	280	70	40	705
1000	360	450	80	375	12*64	792	380	230	620	970	895	100	80	140	180	8*44	360	175	250	20	320	75	40	775

Center Space	140	170	200	236	280	335	400	450	500	560	630	710	800	900	1000
Type	Coefficient: K
R,RS,S	130	140	195	225	250	280	340	365	410	445	495	565	615	670	740
R-D,RS-D,S-D	130	150	175	200	220	260	310	335	370	410	450	510	570	640	700

QJR-D, QJS-D, QJRS-D Series Reducers

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Nomi-nal Center Space	Type P				Type C											Type H
a₁	d₀	L₀	b₀	t₀	m × z	D	D₁	D₂	D₃	B₁	B₂	B	E	L₁	L₂	m × z	d_a	La	d₅	M	d₆	L₆	L₇	K¹
a₁	（r6）	L₀	b₀	t₀	m × z	D	(F8)	D₂	D₃	B₁	B₂	B	E	L₁	L₂	h₆	d_a	La	d₅	M	(k6)	L₆	L₇	K¹
140	48	82	14	51.5												3*15	48	35	25	6	40	23	12	150
170	55	82	16	59												3*18	57	35	30	6	510	27	12	160
200	65	105	18	69												3*22	69	40	40	8	60	30	16	200
236	80	130	22	85	3*56	174	90	40	135	279.5	253	25	25	45	60	3*27	84	45	50	8	70	30	16	220
280	90	130	25	95	4*56	232	120	40	170	302.5	271	35	25	50	75	5*18	95	55	60	8	80	35	16	255
335	110	165	28	116	4*56	232	120	40	170	339.5	308	35	25	50	75	5*22	115	60	70	10	100	40	20	295
400	130	200	32	137	6*56	348	170	45	260	402	370	40	32	76	100	5*26	135	75	90	10	120	45	20	345
400	（140）	200	(36)	(148)	6*56	348	170	45	260	402	370	40	32	76	100	5*26	135	75	90	10	120	45	20	345
450	150	200	36	158	6*56	348	170	45	260	429	397	40	32	76	100	5*30	155	80	100	12	140	50	25	370
500	170	240	40	179	8*54	448	200	105	260	482	442	50	32	78	100	5*34	175	90	120	12	160	55	25	405
500	（180）	240	(45)	(190)	8*54	448	200	105	260	482	442	50	32	78	100	5*34	175	90	120	12	160	55	25	405
560	190	280	45	200	10*48	500	200	105	280	570	505	60	35	78	110	5*38	195	100	140	12	180	55	25	445
560	（220）	280	45	(210)	10*48	500	200	105	280	570	505	60	35	78	110	5*38	195	100	140	12	180	55	25	445
630	220	280	50	231	10*54	560	250	140	380	620	550	65	40	80	120	8*26	216	110	160	12	190	60	25	495
710	250	330	56	262	12*48	600	270	150	420	700	620	75	45	88	130	8*30	248	125	180	16	220	60	32	545
710	（260）	330	56	(272)	12*48	600	270	150	420	700	620	75	45	88	130	8*30	248	125	180	16	220	60	32	545
800	280	380	63	292	12*54	672	290	170	480	776	696	75	45	95	130	8*34	280	140	200	16	250	60	32	605
900	320	380	70	334	12*58	720	310	180	560	850	770	85	60	105	140	8*38	312	155	220	20	280	70	40	675
1000	360	450	80	375	12*64	792	380	230	620	970	895	100	80	140	180	8*44	360	175	250	20	320	75	40	735

Max. Allowing Radial Load of Output Axle Ends

Nominal Center space a₁

140

170

200

236

280

335

400

450

500

560

630

710

800

900

1000

Max. Allowing Radial Load

R

5000

7000

9000

15000

21000

28000

35000

55000

60000

75000

100000

107000

120000

150000

200000

S RS

5000

8000

10000

15000

30000

37000

55000

64000

93000

120000

150000

170000

200000

240000

270000

If you want to know more information about the product, please don’t hesitate to contact us.

Staring Motor Reducers >> Staring Motor Reducers