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Lz-type Elastic Pin-and-Tooth Coupling

The elastic pin-type gear coupling uses several pins made of non-metallic materials, which are inserted into mating holes between the two halves of the coupling and the inner surface of the outer ring. Torque is transmitted through these pins, thereby connecting the two halves of the coupling.

Detailed introduction

Product Features
The elastic pin-type gear coupling uses several non-metallic pins inserted into mating holes between the two halves of the coupling and the inner surface of the outer ring. Torque is transmitted through these pins, thereby connecting the two halves of the coupling. This coupling features the following characteristics:

It features high torque transmission, small size, light weight, easy maintenance, long service life, and requires no lubrication. However, this coupling has poor shock-absorbing performance and generates relatively high noise levels.

Application scenarios
The elastic pin-type gear coupling is suitable for transmission shaft systems with coaxial alignment and utilizes the shear strength of nylon rods in their longitudinal section. It can transmit large torques ranging from 0.112 to 2800 kN·m. Its operating temperature range is -20 to 70℃, and it can partially replace gear couplings. This coupling features a certain degree of axial misalignment compensation and generally good vibration-damping performance.
Its structural configuration is shown in Figure 8.1, and the technical parameters and main dimensions are listed in Table 8-1.

Figure 8.1 LZ-type elastic pin-and-tooth coupling

Table 8-1: Technical Parameters and Main Dimensions of LZZ Type Elastic Pin-and-Tooth Coupling

Model	Nominal torque Mr. kN·m	Permissible Rotational Speed [n] revolutions per minute	Shaft hole diameter d	Shaft hole length		D	S	Moment of inertia kg · m²	Weight kilogram	Permissible compensation amount
				Y-shaped	J ₁ Type					Permissible compensation amount
				L						Radial mm	Axial mm	Angular direction 。
			mm							Radial mm	Axial mm	Angular direction 。
LZ1	0.112	5000	12~24	27~52		76	2.5	0.001	1.67	0.3	±1.5	0.5
LZ2	0.25	5000	16~32	44~82		90	2.5	0.003	3.00
LZ3	0.63	4500	25~42	44~112		118	3.0	0.012	7.31
LZ4	1.8	4200	40~60	84~142		158	4	0.045	16.20	0.4
LZ5	4.5	4000	50~80	84~172		192	4	0.108	27.02
LZ6	8	3300	60~95	107~172		230	5	0.242	40.89
LZ7	11.2	2900	70~110	107~212		260	5	0.443	59.60
LZ8	18	2500	80~130	132~252		300	6	0.908	94.67	0.6	±2.5
LZ9	25	2300	90~150	132~252		335	7	1.733	138.1
LZ10	31.5	2100	100~170	167~302		355	8	2.422	169.3
LZ11	40	2000	110~180	167~302		380	8	3.369	203.1
LZ12	63	1700	130~200	202~352		445	8	6.524	296.6
LZ13	100	1500	150~240	202~410		515	8	14.19	469.2
LZ14	125	1400	170~260	242~410		560	8	21.67	621.7	1
LZ15	160	1300	190~300	282~470		590	10	29.52	730.5
LZ16	250	1000	220~340	282~550		695	10	62.47	1144
LZ17	355	950	240~380	330~550		770	10	106.0	1557
LZ18	450	850	250~420	330~650		860	13	175.4	2062		±5
LZ19	630	750	280~450	380~650		970	14	323.2	3068
LZ20	1120	650	320~500	380~650		1160	15	669.4	4715
LZ21	1800	530	380~630	450~800		1440	18	1880	8599
LZ22	2240	500	420~750	540~800		1520	19	2596	9473	1.5
LZ23	2800	460	480~850	540~880		1640	20	3982	12095	1.5

Note: 1. The weight and moment of inertia are calculated based on the Y/J1 shaft-hole combination type and the minimum shaft-hole dimension.
　　2. The short-term overload shall not exceed twice the nominal torque Tn.

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LZZ Type Elastic Pin-and-Block Coupling with Brake Wheel

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Lz-type Elastic Pin-and-Tooth Coupling

LZZ Type Elastic Pin-and-Block Coupling with Brake Wheel

Shenyang Shenke Power Machinery Co,. Ltd.

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