LZ/ZL Elastic Pin Gear Coupling

LZ Pin Gear Coupling is the basic form of this series of couplings.

Model	Nominal Torque N ·m	Allowable Rotating Speed rpm	Shaft Hole Diameter d₁、d₂	Shaft Hole Length L Y型		D mm	D₁ mm	B mm	S mm	Rotational Inertia Kg ·m²	Weight kg
				mm
				Long Series	Short Series
LZ1	112	5000	12,14	32	27	78	40	42	2.5	0.001	1.53
			16,18,19	42	30						1.60
			20,22,24	52	38						1.67
LZ2	250	5000	16,18,19	42	30	90	50	50	2.5	0.002	2.70
			20,22,24	52	38					0.002	2.76
			25,28	62	44					0.003	2.79
			30,32	82	60					0.003	3.00
LZ3	630	4500	25,28	62	44	118	65	70	3	0.011	6.49
			30,32,35,38	82	60					0.011	7.05
			40,42	112	84					0.012	7.31
LZ4	1800	4200	40,42,45,48,50,55	112	84	158	90	90	4	0.044	16.20
LZ4	1800	4200	60	142	107	158	90	90	4	0.045	15.25
LZ5	4500	4000	50,55	112	84	192	120	90	4	0.100	24.82
			60,63,65,70,75	142	107					0.107	27.02
			80	172	132					0.108	25.44
LZ6	8000	3300	60,63,65,70,75	142	107	230	130	112	5	0.238	40.89
LZ6	8000	3300	80,85,90,95	172	132	230	130	112	5	0.242	40.15
LZ7	11200	2900	70,75	142	107	260	160	112	5	0.406	54.93
			80,85,90,95	172	132					0.428	59.14
			100,110	212	167					0.443	59.60
LZ8	18000	2500	80,85,90,95	172	132	300	190	128	6	0.860	89.35
			100,110,120,125	212	167					0.911	94.67
			130	252	202					0.908	87.43
LZ9	25000	2300	90,95	172	132	335	220	150	7	1.559	113.9
			100,110,120,125	212	167					1.678	138.1
			130,140,150	252	202					1.733	136.6
LZ10	31500	2100	100,110,120,125	212	167	355	245	152	8	2.236	165.5
			130,140,150	252	202					2.362	169.3
			160,170	302	242					2.422	164.0
LZ11	40000	2000	110,120,125	212	167	380	260	172	8	3.054	190.9
			130,140,150	252	202					3.249	203.1
			160,170,180	302	242					3.369	202.1
LZ12	63000	1700	130,140,150	252	202	445	290	182	8	6.146	288.5
			160,170,180	302	242					6.432	296.6
			190,200	352	282					6.524	288.0
LZ13	100000	1500	150	252	202	515	345	218	8	12.76	413.6
			160,170,180	302	242					13.62	469.2
			190,200,220	352	282					14.19	480.0
			240	410	330					13.98	436.1
LZ14	125000	1400	170,180	302	242	560	390	218	8	19.90	581.5
			190,200,220	352	282					21.17	621.7
			240,250,260	410	330					21.67	599.4
LZ15	160000	1300	190,200,220	352	282	590	420	240	10	28.08	736.9
			240,250,260	410	330					29.18	730.5
			280,300	470	380					29.52	702.1
LZ16	250000	1000	220	352	282	695	490	265	10	56.21	1045
			240,250,260	410	330					60.05	1129
			280,300,320	470	380					60.56	1144
			340	550	450					62.47	1064
LZ17	355000	950	240,250,260	410	330	770	550	285	10	105.5	1500
			280,300,320	470	380					102.3	1557
			340,360,380	550	450					106.0	1535
LZ18	450000	850	250,260	410	330	860	605	300	13	152.3	1902
			280,300,320	470	380					161.5	2025
			340,360,380	550	450					169.9	2062
			400,420	650	540					175.4	2029
LZ19	630000	750	280,300,320	470	380	970	695	322	14	283.7	2818
			340,360,380	550	450					303.4	2963
			400,420,440,450	650	540					323.2	3068
LZ20	1120000	650	320	470	380	1160	800	355	15	581.2	4010
			340,360,380	550	450					624.5	4426
			400,420,440,450,460,480,500	650	540					669.4	4715
LZ21	1800000	530	380	550	450	1440	1020	360	18	1565	7293
			400,420,440,450,460,480,500	650	540					1715	8228
			530,560,600,630	800	680					1880	8699
LZ22	2240000	500	420,440,450,460,480,500	650	540	1520	1100	405	19	2338	9736
			530,560,600,630	800	680					2596	10631
			670,710,750	—	780					2522	9473
LZ23	2800000	460	480,500	650	540	1640	1240	440	20	3490	11946
			530,560,600,630	800	680					3972	13822
			670,710,750	—	780					3949	12826
			800,850	—	880					3982	12095

LZ Elastic Pin Gear Coupling is a mechanical device that uses several non-metallic materials to make column pins, which are placed in the mating holes between the two halves of the coupling and the inner surface of the outer ring, and transmit torque through the column pins to connect the two halves of the coupling.

Structural characteristics

The LZ Elastic Pin Gear Coupling consists of two half couplings, an outer ring, and column pins. The outer edge of the flange of the two halves of the coupling and the inner edge of the outer sleeve are made into semi-circular grooves with the same radius to form a column pin hole, which is embedded with an elastic column pin.
The driving shaft half coupling drives the outer sleeve through the column pin, and the outer sleeve then drives the driven shaft half coupling to rotate through the column pin, thereby transmitting torque.

Main advantage

High transmission torque: At the same torque, the rotation diameter of LZ elastic pin toothed coupling is usually smaller than that of toothed coupling, so it has a small volume and light weight, and can partially replace toothed coupling.
Simple structure: Compared with gear couplings, ZL elastic pin gear couplings have a simpler structure, fewer components, and are easier to manufacture without the need for gear machining machines.
Easy maintenance: The LZ Elastic Pin Gear Coupling has a long service life, and the nylon column pin can be replaced by removing the baffle, resulting in low maintenance costs.
Self lubricating material: Nylon column pins are self-lubricating materials that do not require lubrication, saving lubricating oil and helping to purify the working environment.

Application

The ZL elastic column pin tooth coupling has a certain compensation performance for the relative offset of the two shafts, and is suitable for medium and high power transmission.
Due to its relatively poor damping kinetic energy and high noise, it is not suitable for working areas that require certain requirements for damping and strict noise control.

The assembly steps of LZ type intermediate shaft Elastic Pin Gear Coupling are as follows:

Insert the outer ring onto the half coupling and install a suitable baffle onto the flange of the half coupling. Secure the outer ring and half coupling with screws.
Fill the nylon rod into the hole between the outer ring and the half coupling.
Install the other half coupling into the outer ring.
Insert another nylon rod into the hole of the outer ring and half coupling.
Finally, use screws to secure the other baffle to the outer ring of the coupling.

The LZ Elastic Pin Gear Coupling plays an important role in mechanical transmission systems due to its unique structure and advantages. When selecting and using, reasonable selection should be made based on specific working conditions and transmission requirements.

URL: https://m.rokee.com/pin-and-bush-couplings/lz-or-zl-elastic-pin-gear-coupling.html

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