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  • Fellows 10-4 / 20-4 Series
  • Fellows 10-4 / 20-4 Series
  • Fellows 10-4 / 20-4 Series

Fellows 10-4 / 20-4 Series

Description

● Nikgi Industrial Directory Showcase

Fellows 10-4 / 20-4 Series

The Global Standard in Gear Shaping Precision

🎯 What is it used for?

  • Internal Gears: The primary tool for cutting internal splines and teeth.
  • Cluster Gears: Machining gears where a larger diameter prevents “Hobbing”.
  • Versatility: Perfect for small to medium batches of complex gear profiles.

🌟 Iconic Manufacturers

Top-tier workshops prioritize these brands for their rigidity:

Fellows (USA): The pioneer (10-2, 10-4, and 20-4 models).

Lorenz (Germany): High-precision European engineering.

Liebherr: Advanced CNC shaping centers.

Mitsubishi: Fast and reliable Japanese gear shapers.

Technical Overview

The Fellows 10-4 is a world-renowned gear shaper designed for accuracy and high metal-removal rates. Unlike hobbing, the shaping process uses a reciprocating cutter that mimics the mating gear’s movement. This makes it indispensable for cutting gears with shoulder interference or internal teeth where a hob cannot reach. Its mechanical simplicity combined with heavy-duty casting ensures decades of reliable service in aerospace and automotive gear production.

Technical Specifications (Fellows 10-4)

ParameterTechnical Details
Max. Pitch Diameter (External)254 mm (10 inches)
Max. Pitch Diameter (Internal)254 mm (10 inches)
Maximum Face Width101.6 mm (4 inches)
Maximum Diametral Pitch4 DP (Module 6.3)
Stroking SpeedUp to 800 SPM (Strokes per minute)
Machine Total Weightapprox. 5,100 kg
Not Available
Showcase Listing

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