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Shenyang Shenke Power Machinery Co,. Ltd.

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JS Snake Spring Coupling

The snake-spring coupling features a simple structure, convenient maintenance, and excellent capabilities in shock absorption, vibration reduction, and handling variable loads. It is a simpler and more ideal medium- to heavy-duty coupling.

Detailed introduction

The snake-spring coupling features a simple structure, convenient maintenance, and excellent performance in shock absorption, vibration damping, and handling variable loads, making it a simpler and more ideal medium- to heavy-duty coupling.

The snake spring is made from high-strength alloy steel and undergoes a rigorous heat treatment process to meet even higher requirements for both rigidity and flexibility. The spring’s surface is precisely sandblasted, which densifies the molecular structure of the compressed surface, resulting in excellent wear resistance and an extended service life.

Its structural type is shown in Figure 9.1, and the technical parameters and main dimensions are listed in Table 9-1.

Figure 9.1 JS-type Snake Spring Coupling

Table 9-1: Technical Parameters and Main Dimensions of JS-Type Snake Spring Couplings

Model	Nominal torque /N.m	Permissible rotational speed /r· min ^-1	Shaft hole diameter d	L0	L2	D	Gap t	Quality /kg	Moment of inertia /kg · ㎡	Lubricating oil /kg
JS1	45	4500	18, 19	97	66	95	3	1.91	0.0014	0.0272
			20, 22, 24
			25, 28
JS2	140		22, 24	97	68	105		2.59	0.0022	0.0408
			25, 28
			30, 32, 35
JS3	224		25, 28	103	70	115		3.36	0.0033	0.0544
			30, 32, 35, 38
			40, 42
JS4	400		32, 35, 38	123	81	130		5.44	0.0073	0.068
			40, 42, 45, 48, 50
JS5	630	4350	40, 42, 45, 48, 50, 55, 56	129	94	150		7.26	0.0119	0.0862
JS6	900	4125	48, 50, 55, 56	155	97	160		10.4	0.0185	0.113
			60, 63, 65
JS7	1800	3600	55, 56	181	115	190		17.7	0.0451	0.172
			60, 63, 65, 70, 71, 75
			80
JS8	3150		65, 70, 71, 75	199	122	210		25.4	0.0787	0.254
			80, 85, 90, 95
JS9	5600	2440	75	245	155	250	5	42.2	0.178	0.426
			80, 85, 90, 95
			100, 110
JS10	8000	2250	85, 90, 95	259	162	270		54.4	0.27	0.508
			100, 110, 120
JS11	12500	2025	90, 95	304	191	310	6	81.2	0.514	0.735
			100, 110, 120, 125
			130, 140
JS12	18000	1800	110, 120, 125	330	195	346		121	0.989	0.907
			130, 140, (150)
			160, 170
JS13	25000	1600	120, 125	374	201	384	6	178	1.85	1.13
			130, 140, 150
			160, 170, 180
			190, 200

Table 9-1: Technical Parameters and Main Dimensions of JS-Type Snake Spring Couplings

Model	Nominal torque /N.m	Permissible rotational speed /r· min ^-1	Shaft hole diameter d	L0	L2	D	Gap t	Quality /kg	Moment of inertia /kg · ㎡	Lubricating oil /kg
JS14	35500	1500	140, 150	370	271	450	6	227	3.49	1.95
			160, 170, 180
			190, 200
JS15	50000	1300	160, 170, 180	402	278	500		309	5.82	2.81
			190, 200, 220
			240
JS16	63000	1200	180	438	307	566		448	10.4	3.49
			190, 200, 220
			240, 250, 260
			280
JS17	90000	1100	200, 220	484	321	630		619	18.3	3.76
			240, 250, 260
			280, 300
JS18	125000	1000	240, 250, 260	526	325	675		776	26.1	4.4
			280, 300, 320
JS19	160000	900	280, 300, 320	566	355	756		1057	43.5	5.62
			340, 360
JS20	224000	820	300, 320	623	432	845	13	1424	75.5	10.53
			340, 360, 380
JS21	315000	730	320	663	490	920		1785	113	16.1
			340, 360, 380
			400, 420
JS22	400000	680	340, 360, 380	703	546	1000		2267	175	24.06
			400, 420, 440, 450
JS23	500000	630	360, 380	749	648	1087		2950	339	33.82
			400, 420, 440, 450, 460, 480
JS24	630000	580	400, 420, 440, 450, 460	815	698	1180		3833	524	50.17
JS25	800000	540	420, 440, 450, 460, 480, 500	877	762	1260		4682	711	67.24
JS26	1100000	460	520	1100	800	1350		5825	930	82.35
JS27	1300000	340	550	1120	850	1450		6600	1142	101.42

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Shenyang Shenke Power Machinery Co,. Ltd.

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