Custom Hob Arbor for Gear Manufacturing

Custom Hob Arbor – S. Carolina

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″.

  • CNC Turning
  • CNC Milling
  • Heat Treating
  • Straightening Process after Heat Treating
  • Cylindrical Grinding
  • Lathe, Mill, Cylindrical Grinder
  • 4″ Dia x 18″ Long
  • +/-.0002″

Delivery/Turnaround Time

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.

Material Used8620 Steel, Case Hardened 1/32″ Deep, RC 58-60
Material FinishGround
Volume1 Piece
Turnaround Time4 Weeks
To learn more about this project or how our unique set of skills can benefit your operations, contact us today.

Industry News

Machine Tool Orders +40% Higher at Midyear

Machine Tool Orders +40% Higher at Midyear

Manufacturers are seeing an increase in tool orders this year. According to American Machinist: U.S. [...]
What is the use of cylindrical grinders?

What is the use of cylindrical grinders?

Here is a breakdown on the use of cylindrical grinders. According to MV Organizing: What is the use of [...]
Checking Up on Tool Monitoring

Checking Up on Tool Monitoring

According to SME.org: Effective methods of evaluating tools in use can pay big dividends Machine shops [...]