Flange Flexible Couplings | Industrial Power Transmission
The flexible Coupling Model is widely used for its compact design， easy installation， convenient maintenance， small size, and lightweight． As long as the relative displacement between shafts is kept within the specified tolerance， the coupling will operate the best function and have a longer working life. Thus it is greatly demanded in medium and minor power transmission systems driven by motors， such as speed reducers， hoists， compressors， spinning &weaving machines, and ball mills.
Flange Flexible Couplings are robust hydrodynamic power transmission components designed to connect rotating shafts, compensate for angular and axial misalignments, and significantly damp operational vibrations. Featuring a resilient elastomer element (polyester elastomer), these flexible couplings protect driving machinery from shock loads, reduce transmission damage, and ensure smooth, low-noise power transfer across high-torque industrial applications.
Key Characteristics & Operational Benefits
- Vibration Damping & Noise Reduction: Absorbs torsional shock loads and operational chatter to protect connected equipment.
- Resilient Elastomer Element: Durable polyester elastomer insert designed to resist deformation from lubrication fluids and industrial oils.
- Fail-Safe Transmission Design: Prevents catastrophic drive failure while simplifying alignment, installation, and routine maintenance.
- Extended Service Life: Engineered for controlled torque transmission rate, delivering a working lifespan of several years under demanding duty cycles.
Flange Flexible Couplings Dimensional Blueprint & Technical Specifications
| Model Size | Nominal Torque (N·m) | Max Speed (r/min) | Outer Dia. D (mm) | Hub Dia. D1 (mm) | Bore Dia. d1 (mm) | Length L (mm) | Gap C (mm) | Bolts (n-M) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| Size 90 | 4 | 4000 | 90 | 35.5 | 11 | 28 | 3 | 4 – M8x50 | 1.7 |
| Size 100 | 10 | 4000 | 100 | 40.0 | 11 | 35.5 | 3 | 4 – M10x56 | 2.3 |
| Size 112 | 16 | 4000 | 112 | 45.0 | 13 | 40.0 | 3 | 4 – M10x56 | 2.8 |
| Size 125 | 25 | 4000 | 125 | 50.0 | 13 | 45.0 | 3 | 4 – M12x64 | 4.0 |
| Size 140 | 50 | 4000 | 140 | 63.0 | 13 | 50.0 | 3 | 6 – M12x64 | 5.4 |
| Size 160 | 110 | 4000 | 160 | 80.0 | 15 | 56.0 | 3 | 8 – M12x64 | 8.0 |
| Size 180 | 157 | 3500 | 180 | 90.0 | 15 | 63.0 | 3 | 8 – M12x64 | 10.5 |
| Size 200 | 245 | 3200 | 200 | 100.0 | 21 | 71.0 | 4 | 8 – M20x85 | 16.2 |
| Size 224 | 392 | 2850 | 224 | 112.0 | 21 | 80.0 | 4 | 8 – M20x85 | 21.3 |
| Size 250 | 618 | 2550 | 250 | 125.0 | 25 | 90.0 | 4 | 8 – M24x100 | 31.6 |
| Size 280 | 980 | 2300 | 280 | 140.0 | 34 | 100.0 | 4 | 8 – M24x116 | 44.0 |
| Size 315 | 1568 | 2050 | 315 | 160.0 | 41 | 112.0 | 4 | 10 – M24x116 | 57.7 |
| Size 355 | 2450 | 1800 | 355 | 180.0 | 60 | 125.0 | 5 | 8 – M30x150 | 89.5 |
| Size 400 | 3920 | 1600 | 400 | 200.0 | 60 | 125.0 | 5 | 10 – M30x150 | 89.5 |
| Size 450 | 6174 | 1400 | 450 | 224.0 | 65 | 140.0 | 5 | 12 – M30x150 | 145.0 |
| Size 560 | 9800 | 1150 | 560 | 250.0 | 85 | 160.0 | 5 | 14 – M30x150 | 229.0 |
| Size 630 | 15680 | 1000 | 630 | 280.0 | 95 | 180.0 | 5 | 18 – M30x150 | 296.0 |
As a professional transmission manufacturer in China, Powertrans provides customized bore options, keyway machining, and high-durability coupling solutions. Explore our complete range under the Industrial Shaft Couplings Category or Contact Us today for technical engineering assistance and pricing.
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How to choose power transmissions parts and industrial products which meet our requirement
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| Agricultural Chain | CNC Proces Parts | Casting | Stamping | |
| Powder Metallurgy | CNC Proces Parts | Casting | Stamping |
What Products Do you sell ?
We are a group of factories, give customer one stop solution of power transmission and industrial products. We are in the position to supply wide range of products, including chains, sprockets, v-belt and v-belt pulleys, timing belt and timing belt pulleys, gears, speed reducers, motors, racks, couplings, and many other parts, like locking assembly, taper bushing, Chain guide, shaft collar, torque limiter, cam clutch, universal joint, motor base and motor slide, rod end, clevis, rubber mount, etc. We make special parts according to drawings and/or samples.
How to choose a gearbox which meets our requirement?
You can refer to our catalogue to choose the gearbox or we can help to choose when you provide
the technical information of required output torque, output speed and motor parameter etc.
What information shall we give before placing a purchase order?
a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.
What industries are your gearboxes being used?
Our gearboxes are widely used in the areas of textile, food processing, beverage, chemical industry,
escalator,automatic storage equipment, metallurgy, tabacco, environmental protection, logistics and etc.
What is the producing process?
Production process including raw material cutting, machine processing, grinding, accessories cleaning, assemble, cleaning, stoving, oil coating, cover pressing, testing, package.
How to control the products quality?
Combining advanced equipment and strict management, we provide high standard and quality bearings for our customers all over the world.
What is the transportation?
-If small quantity , we Suggest to send by express, such as DHL,UPS, TNT FEDEX. If large amount, by air or sea shipping.
Can we design packaging?
-Yes. Default is regular packing, and we can make customer's own packing.
Can you provide OEM service?
-Yes, we work on OEM orders. Which means size, quantity, design, packing solution, etc will depend on your requests; and your logo will be customized on our products.
Can you give me discount on Power Transmissions Parts and Industrial parts?
-Yes, of course. Pls. send me your Email, you'll get more
Q: Are You a trading company or a manufacturer?
A: We Are the factory and have our Own trading company
Q: How Can I get an offer?
A: please send US quotation information: drawings, materials, weight, quantity and requirements, we can accept PDF, ISGS, DWG, STEP file format. If you don't have the drawings, please send us the samples, we can also quote you according to your samples.
Q: What is your minimum order size?
A: it is usually 100 pieces, but a low quantity is acceptable under some special circumstances.
Q: Do you provide samples? Is it free or extra?
A: Yes, we can provide samples free of charge, but we don't pay the freight.
Q: What is the lead time for mass production?
A: honestly, it depends on the number of orders. Normally, if you don't need the tools, deposit them after 30 days or so.
Q: What if the parts don't Work?
A: we can guarantee the quality, but if it happens, please contact us immediately, take some photos, we will check the problem and solve it as soon as possible.
Q: What are your terms of payment?
A: payment is less than US $1000,100% in advance. Payment: $1000,50% wire transfer in advance, balance before shipment,Other Terms of payment are negotiable
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