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Home / Couplings / Outer Diameter 120/130 Disc Three-Jaw Coupling Back-to-Back Wheel Motor Water Pump Connection Wheel Cast Iron Hexagonal Plum Elastomer

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material Cast Iron
Coupling Type Three-Jaw Disc
Outer Diameter Options 120mm / 130mm
Spider Material Hexagonal Plum Elastomer
Configuration Back-to-Back Wheel
Primary Application Motor to Water Pump Connection
Surface Finish Black Oxide Coated
Torque Capacity High Torque Transmission
Misalignment Tolerance Angular and Parallel
Package Weight 4.5 kg

6 reviews

A

Anonymous

Mar 27, 2026

Rating: 4/5

Solid construction, heavy duty

Very robust coupling. It is quite heavy due to the cast iron material, which gives me confidence in its durability. Deducted one star only because shipping took longer than expected.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Reliable replacement part

Bought this to replace a worn-out unit on a legacy system. It bolted right up and has been running smoothly for three months now. The elastomer shows no signs of wear yet.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Good value for money

For the price, this is a high-quality coupling. The finish is good, and there are no casting defects. Just make sure you measure your shafts carefully before ordering the size.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect fit for our industrial pump

We ordered the 130mm version for a large water pump setup. The cast iron quality is excellent, and the hexagonal elastomer fits snugly without any play. Installation was straightforward.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Exactly as described

The dimensions matched our specifications perfectly. The back-to-back wheel design made alignment much easier than with our previous couplings. Highly recommended for maintenance teams.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Great vibration damping

The plum elastomer does a fantastic job of absorbing vibrations between the motor and the pump. Noise levels in our facility have decreased noticeably since installation.

5 FAQ

Q: Do you offer bulk pricing for orders over 50 units?

A: Yes, we offer discounted pricing for bulk orders. Please contact our sales team directly through the 'Contact Seller' button with your required quantity for a custom quote.

Q: Does this coupling come with the elastomer spider included?

A: Yes, the package includes the cast iron jaws and the hexagonal plum elastomer spider pre-installed or packaged together.

Q: Can I use the 120mm version if my current setup is 125mm?

A: No, these couplings require an exact match for the outer diameter and bore sizes to ensure safe torque transmission and proper alignment. Please select the correct size for your machinery.

Q: What is the maximum operating temperature for the elastomer?

A: The standard elastomer is rated for continuous operation between -30°C and +80°C. For higher temperatures, please contact us for alternative material options.

Q: Is this suitable for high-speed applications?

A: This three-jaw design is generally suitable for moderate speeds typical of water pump applications. For very high RPM applications, please consult the technical datasheet for balance ratings.

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