Toolcraft, LLC. | Quality & Integrity Talented Toolmakers and Quality Work Since 1961

Custom Hob Arbor for Gear Manufacturing

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Custom Hob Arbor
Custom Hob Arbor

At Toolcraft, LLC, our highly experienced machinists use the latest manufacturing and inspection technology to ensure our customers receive precision quality tools that add measurable value to processes that require high accuracy.

We manufactured the custom hob arbor shown here from 8620 steel for use as a toolholder on a gear hobbing machine. Primary operations consisted of CNC turning the tapered diameters and milling the complex features of this 4.0" in diameter x 18.0" in length workpiece. After case hardening to RC 58-60, we executed a straightening process to correct any heat-induced warpage or deformation. Our machinists have the discipline and experience to manage the rigors of close tolerance work and ground the arbor to tolerances of +/-.0002".

Shipped to the customer within a 4 week timeframe, this hob arbor supports improved precision and greater throughput in their gear manufacturing operations. This customer has recognized the unmatched quality of our work, and has engaged us for many complex tooling projects. To learn more about this project or how our unique set of skills can benefit your operations, contact us today.

Custom Hob Arbor Project Highlights

Project Name
Hob Arbor
Project Description
A hob arbor is a tool holder for a hobbing machine.
Capabilities Applied/Processes
  • CNC Turning
  • CNC Milling
  • Heat Treating
  • Straightening Process after Heat Treating
  • Cylindrical Grinding
Equipment Used to Manufacture Part
Lathe, Mill, Cylindrical Grinder
Overall Part Dimensions
4" Dia x 18" Long
Tightest Tolerances
Material Used
8620 Steel, Case Hardened 1/32" Deep, RC 58-60
Material Finish
Industry for Use
Gear Manufacturing
1 piece
Delivery/Turnaround Time
4 Weeks
Delivery Location

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