Differential Carrier Tooling
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Differential Carrier Tooling | Differential Case
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JPT “Patented” Generating Tools (Motion) for Machining Differential Carriers
Protected Under United States Patent Numbers: 5,086,676 & 5,211,088
Plus Other U.S. and Foreign Patents Pending
Since 1983, JPT has designed and manufactured Diff-Carrier tooling evolving into our “Best Practices” or “The JPT Way”.
Our specialty application experience covers Many, Many different types of parts and associated materials that require exacting tolerances.
Differential Carriers are a PRIME FOCUS of JPT
There are many ways to machine Differential Carriers.
- Eccentric Spindles or Holders.
- Circular Interpolation.
- Padded “Style” Tooling.
During this time JPT has established a great library of application knowledge ……….. Including (5) Diff-Carrier part prints in the past three years alone.
As a result of this, JPT has developed the Patented “JPT Differential Carrier Generating (Motion) Tool” that provides extremely high-quality workpieces and tool life.
This success is due to VERY SPECIFIC JPT design and manufacture focus on.
- Fixture design.
- Insert material, geometry and tolerancing.
- Recommended speeds and feeds.
- Workpiece material and process.
- Machine Tool Specifications.
- Part “In” condition…..prior operations.
- Locate and clamping points / method.
- Tool Setting Offset Gaging.
- Run-off requirements.
In addition to the above, JPT is frequently involved in the process and fixture concepts as well as the machine tool application and maintenance. Our involvement in all of the mentioned elements produces very successful applications.
So successful are these that a number of elements have United States and International Patents (and Patents Pending)….including the “JPT Differential Carrier Generating (Motion) Tooling System” utilized by Machine Tool Builders for converting new or existing equipment into Diff-Carrier machining cells.
When we are asked to “quote a tool” along with “back-up” inserts………without the aforementioned involvement…..the outcome is generally poor, and all involved have generally been displeased. We are certain that this is due to the “Manufacturing Marketplace” viewing this type of tooling as a “COMMODITY” (such as a standard catalog toolholder or insert) and fairly often not understanding the discipline required and the complexities involved.
Subsequently, JPT’s increased involvement in all areas of Diff-Carrier manufacturing has grown out of necessity as needed by our customers.
Product Features & High-Speed Operation.
- Utilizes Size Control with Patented JPT Anti-Backlash Device.
- Reduces Cycle Time over existing machining methods.
- Extremely close tolerances achieved on Bearing Bore.
- Gaging Diameters on the tool.
- Tool-Setting accomplished on or off-machine.
- Coolant available through the tool.
- QuickChange accomplished with the JPT Patented Drawbar.
- Tool Setting Gages.
- On-Machine Tool Compensation for part size control.
 JPT-Design-9.5-11 |
Differential Carrier Tools | CNC Tool Shanks
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Differential Carrier Tools | Backboring
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Differential Carrier Tools | “Padded Style”
Excellent Surface Finishes are achieved.
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Differential Carrier Tools | Roughing
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Differential Carrier Tools | Finish Bore and Thread
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Differential Carrier Tools | CNC Machine Generating (Motion) Type
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Differential Carrier Tools | Eccentric Holders
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Differential Carrier Tools | Eccentric Quills or Holders
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Special Options
- DFC Surface Treatment for friction reduction and corrosion resistance.
- Coolant available through the tool
- Repair Service
JPT-Design-9.5-11
Request a Quote or Consultation
Have a new project or tooling challenge? Let’s talk. Our team is ready to help you find the most cost-effective solution for your specific application.
Why Choose JPT
50+ Years Engineering Excellence – in Tooling & Component Manufacturing
20+ Countries w/ Active Clients & Installations
Millions of Components & Tools Delivered Annually
ISO 9001:2015 Certified & Aerospace-Compliant Facility – Built for Quality, Certified to Perform
Confidentiality & Supporting Solutions – Trusted by Tier 1 suppliers & OEMs
Low-Volume Part Production – Ideal for prototyping, spares, and specialty defense projects
Application-Specific Engineering & Tool Design – Engineered for your exact part geometry
Advanced Tool Life Optimization – More uptime, fewer changeovers.
Made in the USA – Built with pride, precision, and speed.
Custom & Standard – Tailored solutions for your needs, ranging from custom indexable cutting tools to standard designs.
Fast Turnaround Times – Minimize downtime & maximize productivity.
Have a new project or tooling challenge? Let’s talk. Our team is ready to help you find the most cost-effective solution for your specific application.
What are Best Practices?
The casual observer may interpret the term “Best Practices” and consider that such a concept is subjectively slanted with many personal points of view. Within the context of the JPT White Paper and Case Study Offerings are experiences drawn from successes as well as failures since our founding in 1971.
