Fluid Couplings

Fluid Couplings

A fluid coupling consists of two parts: the turbine and the pump. There are also blades inside, which are placed at an angle. The pump is mounted on the drive shaft end, while the turbine is on the driven shaft. When fluid enters the pump, the drive shaft rotates under the action of centrifugal force. When you add a reactor, it becomes a torque converter. Its main uses are industrial and marine applications.

Fluid Coupling Characteristics

Improve the starting capability of electric motor, protect motor against overloading, damp shock, load fluctuation and torsional vibration, and balance and load distribution in case of multi motor drives.

Types of Fluid Couplings

Several fluid coupling types are available on the market. They are used in the automobile industry, marine and railroad industry, oil and gas industry, water and waste treatment, construction, and industrial applications.These couplings are used to transfer torque between two shafts. These couplings are based on the hydro-kinetic principles. They are made up of parts such as a runner, casing, impeller, and a seal. They are also referred to as "rotor" or "spindle."There are two types of fluid coupling: constant fill and variable fill. A constant fill fluid coupling has a fixed torque, and a variable fill fluid coupling has a variable torque.The constant fill fluid coupling is user-friendly and offers maintenance-free operation. It can also be used to control slip. It is also available in variable speed versions. The constant fill type is used in a wide variety of applications. It is also used to control torque during acceleration.There are several fluid coupling manufacturers, and you can choose the one that meets your needs. Raydafon is one if the fluid coupling manufacturers in China. We have high-durability with low prices fluid couplings for sale. Contact us now if you are interested.

Fluid Coupling Specifications

　Selection power table (KW)

Technical Data Sheet of Constant Filling Fluid Couplings YOX-Series Item no. 600 (r/min) 750 (r/min) 1000 (r/min) 1500 (r/min) 3000 (r/min) Lquid（L） Weight（KG） YOX-190 0.6-1.1 4.5-9.0 0.4-0.8 8.0 YOX-200 0.75-1.5 5.5-11 0.5-1.0 9.5 YOX-220 0.4-0.8 1.1-2.2 10-18.5 0.8-1.6 14 YOX-250 0.7-1.5 2.5-5.0 15-30 1.1-2.2 15 YOX-280 1.5-3.0 4.0-7.5 37-60 1.5-3.0 18 YOX-320 1.1-2.2 2.7-5.0 7.5-15 45-0 2.5-5.0 28 YOX-340 1.6-3.0 3.0-7.0 11-22 45-80 3.0-6.0 30 YOX-360 2.0-3.8 4.5-9.0 15-30 50-100 3.5-7.0 46 YOX-400 3.0-6.0 7.5-15 22-45 80-145 4.6-9.0 65 YOX-420 3.5-7 11-18.5 37-60 6.5-12 66 YOX-450 6.1-11 14-28 40-75 6.5-13 70 YOX-500 10-19 26-50 75-132 10-19 133 YOX-560 19-30 45-90 132-250 14-27 158 YOX-600 12-24 25-50 60-120 200-375 24-40 170 YOX-650 23-45 40-80 90-185 280-500 25-46 210 YOX-710 30-60 60-115 150-280 37-60 310 YOX-750 40-80 80-160 200-360 40-80 348 YOX-800 45-90 110-220 280-500 50-95 420 YOX-1000 140-280 270-550 70-140 510

λ=f(i) curve for fluid couplings

SELECTION:Without special requirements, the following technical data sheet and power chart are used to select the proper size of fluid coupling with oil medium according to the power transmitted and the speed of the motor,e, i, the input of the fluid coupling.When ordering, please specify the dimensions of the shaft ends of the motor and driven machine(or reducer), including diameter, tolerance or fit of the shafts(if no tolerance or fit is specified, the bores will be machined th H7), fit length of the shafts, width, and depth of the keys (of notice the standard No.enforced). For ordering the fluid couplings with belt pulley, brake pulley or other special requirements, please state the technical data in detail.YOXz is a coincidence machine with a moving wheel which is in the output point of the coincidence machine and is connected with an elastic axle connecting machine (plum blossom type elastic axle connecting machine or elastic pillar axle-connecting machine or even the axle-connecting machine designated by customers). Usually there are 3 connection types.YOXz is inner wheel driver which has a tight structure and the smallest axle size. The fittings of YOXz have a wide usage and simple structure and the size of it has basically been unified in the trade. The connection style of YOXz is that the axle size of it is longer but it is unnecessary to move the electromotive machine and decelerating machine. Only demolishing the weak pillar, and connected spiral bolt can unload the coincidence machine, so it is extremely convenient. The customer must offer the size of the electromotive machine axle (d1 L1) and decelerating machine axle (d2 L2). The wheel size (Dz Lz C) in the table is just for reference; the actual size is decided by customers.

Select Table of YOXz YOXzⅡ YOXzⅢ Fluid Couplings Size and Specification

Item	D	Dz/Lz	C	d1	L1	d2	L2	L	LⅡ	LⅢ	M
YOX-280	328	200/85	10	35	80	45	90	300	245	230	20
YOX-320	380	200/85	10	40	110	50	110	310	245	280	30?.5
YOX-360	422	250/105	10	55	110	55	110	360	260	300	30?.5
YOX-400	465	315/135	10	60	140	65	140	450	260	350	36?
YOX-450	522	315/135	10	70	140	70	140	505	280	390	42?
YOX-500	572	400/170	10	85	170	90	170	575	302	410	42?
YOX-560	642	400/170	10	100	170	110	170	600	366	440	42?
YOX-600	695	500/210	15	100	170	130	180	670	380	470	48?
YOX-650	745	500/210	15	120	210	130	250	725	390	440	48?
YOX-710	815	630/265	15	120	210	130	250	760	460	560	48?
YOX-750	850	630/265	20	140	250	150	250	800	520	580	56?

Select Table of YOXp Type Fluid Couplings Size and Specification

规格	D	L	d1（max）	L1	Dp（min）	M
YOXp-190	235	102	25	60	78	16
YOXp-200	240	112	25	70	80	16
YOXp-220	260	175	30	80	80	16
YOXp-250	300	155	38	80	110	16
YOXp-280	328	160	38	100	120	20
YOXp-320	380	170	48	110	130	30?/font>1.5
YOXp-360	422	190	55	120	150	30?/font>1.5
YOXp-400	465	225	65	130	150	36?
YOXp-450	522	240	70	140	200	42?
YOXp-500	572	250	85	170	200	42?
YOXp-560	642	285	100	180	250	42?
YOXp-600	695	330	100	180	250	48?
YOXp-650	745	345	120	210	300	48?

 Attention： the smallest size Dp belt tray can do the largest size the dl axle hole can do YOXp type is a connection style of belt tray with hydraulic coincidence machine. The electromotive machine (or decelerating machine) axle directly inserts in the axle hole of the coincidence machine, which is suitable for equipment transported by belt.The customer must supply the connection size of the electromotive machine axle (d1 L1) and the detailed specification and size of the belt tray.

YOXm is one that the axle of decelerating machine directly inserts in the axle hole of coincidence machine and the electromotive machine point ML(GB5272-85) connects with plum blossom type elastic axle connecting machine. It is reliable connected and has simple structure, the smallest axle size which is a common connection type in current small coincidence machine.Customer must supply the size of electromotive machine axle (d1 L1) and decerating machine axle (d2 L2) as shown in the picture, others if customer do not supply, we will manufacture according to the sizes in the table.
Select Table of YOXm Type Fluid Couplings Specification and Size Item no. D L（min） d1（max） L1 d2（max） L2 M（拆卸螺孔） M YOXm-190 235 180 30 60 25 60 16 MT4 YOXm-200 240 180 30 60 30 70 16 MT4 YOXm-220 260 200 36 70 35 70 16 MT5 YOXm-250 300 210 36 70 40 80 16 MT6 YOXm-280 328 240 40 80 45 100 20 MT7 YOXm-320 380 276 48 110 50 110 30?/font>1.5 MT7 YOXm-340 392 282 48 110 42 110 30?/font>1.5 MT8 YOXm-360 422 287 55 110 55 110 30?/font>1.5 MT8 YOXm-400 465 352 60 140 60 130 36?/font>2 MT10 YOXm-420 480 345 65 140 60 140 36?/font>2 MT10 YOXm-450 522 384 75 140 70 140 42?/font>2 MT10 YOXm-500 572 426 80 170 90 170 42?/font>2 MT11 YOXm-560 642 487 100 210 100 175 42?/font>2 MT11 YOXm-600 695 540 100 210 100 180 48?/font>2 MT12 YOXm-650 755 522 130 210 120 210 48?/font>2 MT12 YOXm-710 815 580 130 210 130 210 48?/font>2 MT12 YOXm-750 850 603 140 250 140 250 56?/font>2 MT12 YOXm-1000 1130 735 150 250 150 250 56?/font>2 Attention：L in the table is the smallest axle size.If lengthen the L1,the total length of L will be added.d1,d2are the largest size that we can do.
Select Table of YOXe YOXf Fluid Couplings Specification and Size Item no. D L（min） d1（max） L1（max） d2（max） L2（max） 联轴器规格 Le Lf YOXf-250 300 210 210 35 80 35 80 TL4 HL2 YOXf-280 328 230 230 35 80 35 80 TL4 HL2 YOXf-320 380 300 280 48 110 48 110 TL6 HL3 YOXf-360 422 350 300 55 110 48 110 TL6 HL3 YOXf-400 465 390 350 60 140 60 140 TL7 HL4 YOXf-450 522 415 390 75 140 65 140 TL8 HL5 YOXf-500 572 450 410 85 170 85 170 TL9 HL6 YOXf-560 642 525 440 90 170 85 170 TL10 HL6 YOXf-600 695 550 470 100 170 110 210 TL10 HL7 YOXf-650 745 600 440 110 210 110 210 TL11 HL7 YOXf-710 815 600 560 120 210 125 210 TL11 HL8 YOXf-750 850 650 580 140 250 140 250 TL12 HL9 YOXf-800 908 700 580 150 250 160 300 TL12 HL10 YOXf-1000 1130 750 750 180 300 180 300 TL13 HL11
YOXf is a type connected both sides, the axle size of which is longer. But it has simple structure and it is more easy and convenient for fixing and amending (unnecessary to move the electromotive machine and decelerating machine but only the elastic pillar and connecting spiral bolt can unload the coincidence machine).The relevant elastic axle connecting machine, connecting size and outer size is basically the same with YOXe type.

 

Applications of Fluid Couplings

Fluid Coupling uses in belt conveyors, scraper conveyors, and conveyors of all kinds Bucket elevators, ball mills, hoisters, crushers, excavators, mixers, straighteners, cranes, etc.Using fluid couplings for power transmission offers several advantages. These include energy savings, overload protection, smooth acceleration, and torsional isolation. These advantages are useful for a variety of applications. In particular, they are used in heavy industry.Fluid couplings are also used in marine applications. They are also found in large ventilators, mixers, and boiler feed pumps. Using these devices can increase the life of your equipment. Th