LT Ventilated Air Clutch and Brake

LT is an oilfield clutch. The LT is used primarily on drilling equipment manufactured in China, Russia, and Romania. The LT is interchangeable with Drawworks Lanzhou LS®, Honghua® and Upetrom® products. Manufactured to transmit torque through its sidewalls, absorbing shock loads and vibration to protect the drive components from the transmission. The rate at which the air tube is pressurised directly affects the rate at which the torque increases. The neoprene rubber tube formulation also reduces the effects of torsional vibrations. The flexible design allows the tube to compensate for minor misalignment and axial movements of the shaft.

Common Ventilated Clutch

Model	Rotate speed		Torque		Working pressure (Mpa)	Pneumatic volumetric (L)	Friction wheel diameter D2	Connection size
Model	Limited	Rated	Limited	Rated	Working pressure (Mpa)	Pneumatic volumetric (L)	Friction wheel diameter D2	Rim diameter D1	Rim width H	Location diameter D3	Screw hole quantity and diameter	Bolt distribute diameter D4
LT500/200	1312-1578	758-912	17110-24970	11406-16646	0.7-1.0	3*2	496	780	234	Ф300H8	10-Ф18H10	360
LT500/250	1586-1701	916-983	23390-26900	15590-17930	0.7-0.8	3*5	496	750	288	Ф750F9	12-Ф18H10	720
LT600/250	1281-1544	740-892	32200-46710	21466-31140	0.7-1.0	4*2	596	890	284	Ф340H8	12-Ф23H10	420
LT700/250	1181-1344	660-793	48200-69910	32100-47300	0.7-1.0	4.2*2	696	1010	292	Ф1000F9	16-Ф22H10	965
DY700/135	1569-1890	907-1092	24560-35360	16170-23750	0.7-1.0	4	696	935	200	Ф935H10	20-Ф18H10	735
LT800/250	1016-1224	587-707	54240-78660	36160-52440	0.7-1.0	4.66*2	796	1115	300	Ф1105F9	16-Ф22H10	1070
LT900/250	903-1087	522-628	68000-98930	45467-65953	0.7-1.0	3*2	897	1230	292	Ф1220H9	16-Ф22H10	1184
LT900/250	903-1087	522-628	68000-98930	45467-65953	0.7-1.0	3*2	897	1230	292	Ф1220H9	16-Ф22H10
LT1070/200	932-1123	539-668	84600-122670	56400-81790	0.7-1.0	3.0	1065	1400	260	Ф1400H11	16-Ф27H10	1350
LT1170/250	765-820	442-474	117740-134130	78490-89420	0.7-0.8	5.7	1166	1500	302	Ф1500H10	12-Ф27H10	1445
LT1120/300	—	—	184500-263250	123000-175500	0.7-1.0	3.96*2	1116	1450	357	Ф840H8	20-Ф23H10	890
LT1250/300	—	—	229500-327000	153000-218000	0.7-1.0	4.4*2	1246	1580	357	Ф1050H8	16-Ф25H10	1110
LT965*305	782-957	452-563	99680-142800	78145-96755	0.7-0.9	6.0	965	1264	358	Ф1254H10	20-Ф21H8	1215
LT1168*305	739-890	435-524	108390-147700	88332-99700	0.7-0.9	11	1168	1540	360	Ф1530H10	24-Ф22H8	1486

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