Gear Hobs
Gear Hobs
CTI produces ultra-precision hobs for cutting Spur and Helical Gears of maximum accuracy.
Each tool is designed to meet specifications with any type of profile modification like protuberance, chamfering, topping, and tip relief.
Hobs are supplied in single or multi starts in Class AA, A, and B as per DIN 3968.
Each tool is designed to meet specifications with any type of profile modification like protuberance, chamfering, topping, and tip relief.
Hobs are supplied in single or multi starts in Class AA, A, and B as per DIN 3968.
Module
0.1 to 40
(24mm to 360mm diameter )
DP
120 DP to 0.7
(0.75″ to 15″ diameter )
STRAIGHT AND INVOLUTE SPLINE HOBS
Spline Hobs are supplied for generating parallel or angular splines, straight or helical splineswith profile modifications like semi topping, undercutting, shoulder clearance, etc.
Involute Spline Hobs as per DIN 5480, 5481 & 5482, NFE 22 141, ANSI B92.1
Parallel Spline Hobs with or without lugs, semi‐topping and shoulder clearance.
Involute Spline Hobs as per DIN 5480, 5481 & 5482, NFE 22 141, ANSI B92.1
Parallel Spline Hobs with or without lugs, semi‐topping and shoulder clearance.
For Power take off shafts‐ DIN 9611.
CHAIN SPROCKET AND TIMING PULLEY HOBS
Roller Chain Sprocket Hobs are supplied as per ANSI, BS, IS or any other standards or with non‐standard forms. These hobs are offered with ground or unground profiles and topping or non‐topping designs.
Timing Belt Pulley Hobs are made to cut various types of Timing Pulleys like
Timing Belt Pulley Hobs are made to cut various types of Timing Pulleys like
Syncroflex
UNIROYAL , Powergrip
HTD-According to DIN 7721 , ISO 52
WORM GEAR HOBS
Worm Gear Hobs are supplied for Flank Forms ZN, ZA, ZL, ZK, ZC upto a lead angle of 45 degrees. These Hobs can be hollow type or integral shank type depending upon strength constraints.
Tangential, radial, topping or non‐topping hobs and special reaming type finishing hobs are also offered.
Tangential, radial, topping or non‐topping hobs and special reaming type finishing hobs are also offered.
Frequently Asked Questions
What are gear hobs used for?
Capital Tool Industries (CTI) manufactures ultra-precision gear hobs used for cutting spur gears and helical gears with high accuracy in gear manufacturing machines.
What types of modifications can be made on gear hobs?
Gear hobs can be designed with various profile modifications such as protuberance, chamfering, topping, tip relief, spline hobs, chain sprocket profiles, and worm gear hobs to meet specific gear design requirements.
What makes CTI's gear tooling solutions unique?
By combining the engineering expertise and manufacturing strengths of CTI, Mico, and Acedes, customers benefit from reliable, high-precision gear-cutting solutions backed by decades of industry experience and global technical support.
What accuracy classes are available for gear hobs?
Gear hobs are supplied in Class AA, Class A, and Class B accuracy levels as per DIN 3968 standards, depending on the required precision level.
What is the module range of gear hobs?
CTI gear hobs are available in a module range from 0.1 to 40, suitable for manufacturing both fine precision gears and large industrial gears.
What is the diameter and DP range covered by gear hobs?
Gear hobs cover a diameter range of approximately 24 mm to 360 mm and a diametral pitch (DP) range from 120 DP to 0.7 DP, supporting both fine and coarse gear cutting applications.
Why choose Capital Tool Industries (CTI) for gear hobs?
Since 1966, Capital Tool Industries has been a trusted manufacturer of precision gear-cutting tools for customers worldwide. It specializes in gear hobs and finishing tools engineered for accuracy, durability, and productivity.
What is CTI’s global strategy for sales?
CTI made two acquisitions in 2 years as part of its global growth strategy. CTI acquired Mico Tools (Mishalle NV), Belgium, in 2023 and Acedes Gear Tools, UK, in 2025. These acquisitions strengthened CTI’s expertise in advanced gear hobs and enhanced customer support across Europe.
We at Capital Tool Industries welcome all international and domestic inquiries pertaining to our products and services. We reaffirm our commitment to all our valued customers and potential clients that all inquiries will be replied to within 48 hours as we value your business.