Logan Quick Reference Chart. Consult factory for other sizes.

Logan Model Number	Twin Disc® Part No. Reference	Clutch Size Flywheel (Diameter)	Available SAE Housing Size	Number of Clutch Discs	In-Line or Side Load	Torque Capacity @100PSI		Torque Capacity @200 PSI		HP Range
Logan Model Number	Twin Disc® Part No. Reference	Clutch Size Flywheel (Diameter)	Available SAE Housing Size	Number of Clutch Discs	In-Line or Side Load	lbs.-ft.	Nm	lbs.-ft.	Nm	Class 1 Light Duty	Class 4 Heavy Duty
LC-106	C-106-SP5	6.5"	6,5,4	1	Both	80	108	159	216	40	20
LC-107	C-107-SP5	7.5"	6,5,4	1	Both	87	118	175	237	54	27
LC-108	C-108-HP3	8"	5,4,3	1	Both	115	156	230	312	61	31
LC-110	C-110-HP3	10"	4,3,2,1	1	Both	200	271	400	542	100	48
LC-111	SP-111-HP3	11.5"	3,2,1	1	Both	227	308	455	617	124	62
LC-211	SP-211-HP3	11.5"	3,2,1	2	Both	450	610	900	1220	244	122
LC-311	SP-311-P	11.5"	3,2,1	3	Both	665	902	1330	1803	375	190
LC-114	SP-114-P1	14"	1,0	1	Both	405	549	810	1098	188	95
LC-214	SP-214-P1	14"	1,0	2	Both	810	1098	1620	2197	375	190
LC-314	SP-314-P1	14"	1,0	3	Both	1500	2034	3000	4068	700	350
LC-318 SP	SP-318-P	18"	1,0	3	Both	3000	4068	6000	8136	1227	612
LC-318 HC	IBF-318-OP	18"	1,0	3	Side	3000	4068	6000	18136	1227	612
* Light Duty: Clutch is used primarily as a connect-disconnect. Heavy Duty: Clutch is required to periodically slip during engagement. Torsional compatibility rest solely with the user.

Logan Model Number	Duty Service Classification Maximum Clutch Ratings Based on Maximum Torque @ 200 psi								Maximum Speed RPM	Approx. Net Weight
	Class 1		Class 2		Class 3		Class 4			Approx. Net Weight
	HP	kW	HP	kW	HP	kW	HP	kW		Lbs.	kg
LC-106	40	30	36	27	27	20	20	15	3000	53	24
LC-107	54	40	44	32	33	25	27	20	3000	55	25
LC-108	61	45	54	40	41	31	31	23	3000	72	33
LC-110	100	75	79	59	60	45	48	36	2850	115	52
LC-111	124	92	108	81	82	61	62	46	2850	141	64
LC-211	244	182	215	160	163	122	122	91	2850	155	70
LC-311	375	280	317	236	240	179	190	142	2850	185	84
LC-114	188	140	165	123	125	93	95	71	2400	255	116
LC-214	375	280	331	247	251	187	190	140	2500	373	169
LC-314	564	421	496	421	376	280	282	210	2500	486	221
LC-318 SP	930	697	568	423	622	464	460	348	2350	700	318
LC-318 HC	1227	915	1225	913	816	608	612	456	2200	920	418

Duty Services Classifications

Class 1: Light Duty The Clutch is used as a connect/disconnect clutch for light loads with minimum slip. The engagement cycle ranges from 1 to 10 times per hour. The clutch operates at an ambient temperature. Applications include machines of all types with uniform loads. For example: generators, blowers, vacuums, pumps, feeders, etc. Refer to input torque from Class 1 table. Class 2: Normal Duty The Clutch is used as a connect/disconnect clutch for light to medium loads with a maximum 2-second slip prior to engagement. The engagement cycle ranges from 1 to 10 times per hour. A normal duty application may increase the external surface temperature of the clutch 50°F / 28°C above ambient.		Applications include machines of all types with moderate, pulsating loads. For example: Centrifugal or reciprocating compressors (3 or more cylinders),reciprocating pumps, hoists, rotary kilns, dryers, etc. Reference input torque from Class 2 table. Class 3: Moderate to Heavy Duty The Clutch is used as a connect/disconnect for medium loads, with a maximum 3-second slip prior to engagement. The engagement cycle ranges from 1 to 10 times per hour. A medium duty application may increase the external surface temperature of the clutch 100°F / 56°C above ambient. Applications include machines of all types with moderate, pulsating loads. For example: Centrifugal or reciprocating compressors (single or 2 cylinder),		reciprocating pumps, hoists, rotary kilns, dryers etc. Refer to input torque from Class 3 table. Class 4: Heavy Duty The Clutch is used as a connect-disconnect for heavy duty, large inertia loads. Maximum allowable slip time is 4-seconds to start a heavy load and no more than 10-seconds of slip time prior to full engagement. The engagement cycle is 1 to 5 times per hour. A heavy duty application may increase the external surface temperature of the clutch 150°F/83°C above ambient. Applications include machines of all types with heavy loads. For example: Mud Pumps, Crushers, Brush Chippers and severe impact loads or speed vibrations and reversing type machinery. Refer to input torque from Class 4 table.
	Horsepower (Kw) ratings can be increased using modified friction discs.		Contact Logan if your application requires a higher speed.		Complete a Logan application fact sheet and submit to Logan to confirm your application requirements.