QJ Series Crane Gear Reducers -reduction gearboxes

QJ series crane gear Reducers

FEATURES:

1. Wide deceleration range and rated speed ratio of 10-200;

2. Mechanical transmission efficiency, grade 2, 96%, III, 94%

3. Stable operation and low noise.

4. Since 42crmo.35crmo is used for forging, quenching and tempering to produce gear shaft and gear respectively, the service life is long and the bearing capacity is high

5. Easy to disassemble and install

DESCRIPTION

QJ Series

Details

QJ Series

Details

PARAMETERS:

QJR(QJB) outline size (mm)

nominal center distance/a1	a₂	a₀₂	input shaft end		L	H	n	K	b⁰_{0 -0.5}	f⁰_+0.1	g (h₉)	d₄	e₂₀	s	r	e₁	weight/kg
nominal center distance/a1	a₂	a₀₂	d₂ (r6)	L₂	L	H	n	K	b⁰_{0 -0.5}	f⁰_+0.1	g (h₉)	d₄	e₂₀	s	r	e₁	weight/kg
140	100	240	22	50	505	320	120	130	190	16	130	12	320	12	170	50	59
170	118	288	28	60	600	386	135	140	215	18	150	15	380	14	202	60	85
200	140	340	32	80	707	455	180	195	250	20	170	18	450	17	232	70	133
236	170	406	38	80	828	518	210	225	300	20	200	18	530	17	272	85	240
280	200	480	48	110	974	584	235	250	335	25	240	22	630	22	314	100	330
335	236	571	55	110	1156	735	255	280	400	25	270	26	750	27	375	120	590
400	280	680	65	140	1387	867	285	340	475	30	320	33	900	27	447	140	850
450	315	765	80	170	1547	990	310	365	530	30	360	33	1000	32	506	160	1300
500	355	855	90	170	1720	1130	350	410	600	40	400	39	1120	32	554	180	1760
560	400	960	100	210	1922	1270	385	445	670	40	430	39	1250	37	626	200	2600
630	450	1080	110	210	2156	1380	425	495	750	40	480	45	1400	37	704	225	3550
710	500	1210	120	210	2433	1540	450	565	850	50	530	45	1600	42	781	250	4900
800	560	1360	130	250	2739	1712	490	615	950	50	580	52	1800	42	880	280	6600
900	630	1530	150	250	3043	1910	540	670	1060	50	650	62	2000	47	978	320	9200
1000	710	1710	170	300	3384	2150	610	740	1180	60	720	70	2240	55	1074	360	12000

Examole for type designation

Models:

QJR(QJB)140、QJR(QJB)170、QJR(QJB)200、QJR(QJB)236、QJR(QJB)280、QJR(QJB)335、QJR(QJB)400、QJR(QJB)450、QJR(QJB)500、QJR(QJB)560、QJR(QJB)630、QJR(QJB)710、QJR(QJB)800、QJR(QJB)900、QJR(QJB)1000、 QJS(QJC)140、QJS(QJC)170、QJS(QJC)200、QJS(QJC)236、QJS(QJC)280、QJS(QJC)335、QJS(QJC)400、QJS(QJC)450、QJS(QJC)500、QJS(QJC)560、QJS(QJC)630、QJRS(QJD)140、QJRS(QJD)170、QJRS(QJD)200、QJRS(QJD)236、QJRS(QJD)280、QJRS(QJD)335、QJRS(QJD)400、QJRS(QJD)450、QJRS(QJD)500、QJRS(QJD)560、QJRS(QJD)630、QJRS(QJD)710、QJRS(QJD)800、QJRS(QJD)900、QJRS(QJD)1000….

Nominal Center Distance	CODE
	QJR、QJR-D						QJS、QJRS、QJS-D、QJRS-D
	Nominal Transmission Ratio
	10	12.5	16	20	25	31.5	40	50	63	80	100	125	160	200
140	10.20	12.67	16.42	20.79	25.59	31.78	40.30	49.26	63.09	78.00	99.57	122.58	162.09	201.24
170	9.70	12.34	16.01	19.93	25.56	31.31	39.87	49.21	64.04	81.82	101.86	122.40	161.85	198.27
200	9.95	12.67	16.42	20.25	24.48	32.38	40.75	49.95	63.22	77.28	98.48	125.89	161.28	199.66
236	9.80	12.34	16.01	19.93	25.56	31.67	41.13	50.21	64.92	81.11	99.64	127.78	156.53	193.96
280	10.20	12.67	16.42	20.25	24.48	32.36	39.15	50.76	61.36	82.10	102.36	123.76	153.41	202.76
335	10.19	12.96	15.80	20.74	25.00	30.63	40.00	48.76	62.35	83.19	99.35	127.78	158.33	193.96
400	9.95	12.67	16.42	20.25	24.48	32.38	40.75	49.95	63.22	77.28	98.04	126.48	156.67	207.22
450	9.84	12.89	16.21	20.16	25.26	32.43	40.48	50.96	62.15	77.83	101.91	127.69	158.28	203.21
500	10.02	12.50	16.01	20.14	25.52	31.25	40.22	48.70	61.64	81.05	101.72	121.50	156.10	205.06
560	10.20	12.67	16.42	20.25	24.48	32.36	39.15	50.76	61.36	82.11	102.36	123.76	153.41	202.76
630	10.03	12.88	16.21	20.16	25.26	32.40	39.67	49.94	62.54	81.07	102.81	121.48	156.00	200.12
710	10.01	12.50	16.01	20.14	25.52	30.91	40.77	49.37	62.44	82.05	101.77	128.92	157.88	206.07
800	9.95	12.67	16.42	20.25	24.48	32.38	40.75	49.95	63.22	77.28	98.04	126.48	156.67	207.22
900	9.84	12.88	16.21	20.16	25.26	32.43	39.11	49.24	64.12	81.97	99.83	125.08	160.46	206.00
1000	10.02	12.50	16.01	20.14	25.52	31.25	40.22	48.70	61.64	81.05	101.72	121.50	156.10	205.06