High Transmission Efficiency Series JMB Diaphragm Coupling

Overview Quick Details

Place of Origin:
Liaoning, China
Brand Name:
Steel, 42CrMo/1Cr18Ni9Ti
Standard or Nonstandard:
Flexible or Rigid:
Applicable Industries:
Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Construction works, Mining,Metallurgy,Electric power, Petrochemical,Fan pump,Cement etc.
Rated torque:
Max allowable speed:
Surface treatment:
Carburing blackeing electroplating quenching
1 year

Supply Ability

Supply Ability:
1000 Piece/Pieces per Week

Packaging & Delivery

DaLian port
Picture Example:
Lead Time :
Quantity(Pieces) 1 – 10 >10 Est. Time(days) 15 To be negotiated

Online Customization

Product Description

Double-diaphragm and small axial opposite wheel type coupling is the patent product developed by our factory, the patent NO.ZL.99 2 46247.9.

With compact structure, the adjustment capacity anti-impact and vibration-absorbing etc properties will be higher by 35%-40% than thoes of single diaphragm opposite wheel type.

Under unexpected diaphragm breakage conditions, the plum blossom shape flange can still transfer the torque, the safety property is good.

Mounting and dismounting are conveninet, it does not need to remove the motor or speed-reducer.


With high strength and large bearing capacity. It can transfer torque several millions, and can also adapt to super large equipments, such as steel rolling, iron smelting, cement, etc.

With small mass, high precision and reasonable design. It adapts to hitech equipment with speed over 10000RPM, such as oceangoing, aviation, spaceflinght, petrochemical, etc.

Thebolt connection is a reaming bore close fit connection without clearance, and stamping match marks. The dynamic balancing precision of the coupling is high; there are no empty spots when the coupling rotates clockwise or anticlockwise. The product can be used for singnal transmission and digital control equipment.

Good mechanical property, small additional bending moment, the anti-impact, vibration-reducing capacity, and less influence on rotor critical speed.

The product can be high temperature-resisting, and the coupling can still run while the temperature reaches as high as 350℃.

Lubrication and maintenance free, and easy to mounting and dismounting.

It can be widely used in the electric generating plant, petrochemical plant, steelworks, mine machinery etc.

Especially it is suitable for the mine fan, rope lifter locations where the safety coefficient requirement is higher.

Company Information

Shenyang Triocircle Machinery Factory is a professional manufacturer of couplings and universal joint shafts in China’s heavy machinery industry,whichis one of the largest coupling manufacturers in China and own many patents in coupling.

Importantly, we arethe Sinopec member unit has passed ISO9001: 2000 international quality system certification. It is mainly engaged in research and development, design, production and sales of power transmission system components. The universal coupling manufacturing technology has filled the gap in this technology in China.

Engaged in the production of various national standard, non-standard couplings, and the manufacturing and processing of auxiliary equipment in various mining, metallurgy, coal, chemical and other industries.

Our story

Our Services

Before1.Any questions about our items will be answered within 24hrs.2.We could send relevant product information to the E-mail.After1.If there is a quality problem,the manufacturer is responsible for the repair within the warranty period.2.If you have any problems with the use of the product, please contact us (E-mail or phone).

Package: Normally we use the standard exporting packaging.Shipping:Please contactoursales to confirm the specific shipping details, we do not ship directly.1.ByAir: DHL/Fedex/China post(small type)2.BySea:Deliveryfromthe Dalian port .FAQ

Q1. Can we visit your factory?

A:It’s our pleasure, just inform us before you coming, we will give you some information about our factory.

Q2.What information should I tell you to confirm the product?

A: Model/Size, Shaft diameter, hole diameter& Order quantity etc.

Q3.How long is your delivery time?

A: It is according to quantity. Generally it is 5-10 days if the goods are in stock. or it is 15-60 days .Please contact us to confirm according to your requirement.

Q4.Can I add my logo on the Coupling ?

A:Yes,EPT and ODM are available.

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