National Machine Tool Company
Providing Keyway Solutions Since 1903
National Machine Tool Company | National Machine Tool Company Providing Keyway Solutions Since 1903

Custom Cut Blind Keyway in a Bronze Sleeve used in Pump Manufacturing

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Custom Keyseat Mill Tooling
Custom Keyseat Mill Tooling

A customer in the pump manufacturing industry identified an application with a keyway that was milled into a threaded bore located above a smaller through bore without a relief hole. At National Machine Tool Company. we specialize in difficult keyway applications that are prevalent in pump sleeve manufacturing. Our solution was to manufacture a pump sleeve keyseat miller. This keyseat miller would be designed with a long pilot passing through the threaded bore and bearing into the lower smaller bore. We then milled a slot in threads without breaking into the smaller bore. Our highly skilled engineering team worked with the customer's specifications and 2D CAD drawings for product development and design. We utilized CNC milling and turning in addition to grinding to create finished dimensions of .625" in width and .310" in depth. Dimensional, visual, and functionality inspections were completed to ensure manufactured tolerance within ±.0002". At NMT, our lead time for stock items is 2-3 days and custom items in 2-3 weeks.

For more information on this project, or the processes involved to manufacture it, see the table below, or contact us directly.

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Custom Cut Blind Keyway in a Bronze Sleeve Project Highlights

Product Name
Pump Sleeve Keyseat Miller
Problem Description
Keyway milled in threaded bore above smaller through bore without a relief hole
Solution
Keyseat miller designed with long pilot passing through threaded bore then milling slot in threads without breaking into smaller bore
Capabilities Applied/Processes
Primary:
Engineering
  • Product Development/Design
CNC Milling
CNC Turning
Grinding
Keyway Dimensions
Width: 0.625"
Depth: 0.310"
Tightest Tolerances
Within 0.0002"
Material Cut
Bronze
In process testing/inspection performed
Dimensional Inspection, Visual Inspection, Functionality
Industry for Use
Pump Manufacturing
Volume
1
Delivery/Turnaround Time
Stock Items: 2 - 3 Days
Custom Items: 2 - 3 Weeks
Delivery Location
Nationwide / Worldwide
Standards Met
Customer Specifications, 2D CAD Drawing

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