Iwaki KB0173 Motor – 100V 12 RPM Replacement Drive for KBA Bellows Pump
The Iwaki KB0173 is a purpose-built 100V, 12 RPM synchronous motor designed to power the KBA series of bellows-type metering pumps. It replaces worn or failed drive motors on existing KBA units, restoring accurate, low-speed stroke action without the need to replace the entire pump assembly. Because it's engineered specifically for Iwaki's compact bellows pump platform, it bolts in as a direct match to factory specifications, keeping stroke timing and flow consistency exactly where they should be.
This motor is built for applications that call for steady, low-volume dosing rather than high-speed pumping. Its slow, controlled rotation translates into smooth, repeatable bellows movement, which matters in settings where precise chemical injection is non-negotiable. From water treatment dosing skids to photo-developing equipment, food processing lines, and analytical instrumentation, the KB0173 keeps these small-flow systems running the way they were designed to.
For facilities and technicians maintaining Iwaki KBA pumps, this motor offers a straightforward path to getting a unit back online. It's a component-level fix rather than a full pump replacement, which typically means less downtime and a lower repair cost while preserving the reliability Iwaki equipment is known for.
Key Features
- 100V AC synchronous motor design
- 12 RPM output speed for precise low-flow stroke control
- Direct OEM-style fit for Iwaki KBA series bellows pumps
- Compact housing suited for tight equipment enclosures
- Consistent, repeatable stroke timing for accurate dosing
Applications
- Chemical feed and metering systems
- Water and wastewater treatment dosing
- Photographic film and print developing equipment
- Food processing and quantitative chemical feed lines
- Analytical and laboratory instrumentation
- General industrial low-flow fluid dosing
Specifications
- Part Number: KB0173
- Voltage: 100V AC
- Output Speed: 12 RPM
- Motor Type: Synchronous
- Compatible Pump Series: Iwaki KBA bellows metering pump
- Mounting: Direct pump-motor coupling (OEM configuration)
FAQ Section
Q: Will the Iwaki KB0173 motor fit older KBA pump models?
It's designed to match the standard KBA bellows pump mounting and coupling configuration, so it fits most units in the series, though checking your existing motor's dimensions and voltage rating first is recommended.
Q: Can this motor be used with a different voltage supply?
No. The KB0173 is rated specifically for 100V AC operation, and using a different supply voltage can affect stroke timing or damage the motor.
Q: How does the 12 RPM speed affect pump output?
The 12 RPM rating controls the bellows stroke rate, which directly determines the pump's flow rate, so it's matched to the KBA pump's designed output range rather than being an adjustable variable.
Q: Is installation something a technician can do without factory service?
Yes, in most cases the motor can be swapped by a qualified maintenance technician following standard electrical disconnect and coupling procedures, without needing to send the pump out for factory repair.
Q: Does this motor work in non-aquatic industrial settings?
Yes. While Iwaki pumps are often associated with aquarium and marine use, the KB0173 and KBA pump line are widely used in industrial, laboratory, and process settings unrelated to marine applications.
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