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Gear Hobs

S.S. Tools is a leading manufacturer of precision gear hobs in India.

These hobs are used for generating  spur and helical gears,  involute  splines, straight key splines, sprockets, worm wheels, timing pulleys, etc. These are generally supplied with bore keyway, however hobs with end drive slot and shank design are also available. With the help of vast experience, expertise and use of latest multi-axis CNC hob profile grinding machines, customized hob shapes and tooth forms are designed and produced to suit customer specifications. We are the best known gear hob manufacturers. 

These gear hob cutters can be either single or multi-start for finishing, pre-shaving and pre-grinding gears with profile features including tooth tip chamfer, protuberance, topping / semi-topping, full radius, tip/root relief, or any other modifications.

Module (DP) Range:          0.5 – 30 Mod. (DP 50 – 0.85)

Diameter Range:                20 – 300 mm

Accuracy:                              Certified class AA, A as per DIN 3968.

Materials:                              Conventional / PM High Speed Steels are available including: ASP 2060 / ASP 2052 / ASP 2030 / S390 / S290 / M35

Coatings:                              All types of PVD coatings are available including: Gold (TiN) / Futura Nano (TiAlN) / Alcrona (AlCrN)

Involute Gear Hobs

Involute spline hobs are used to produce involute splines and serrations. These hobs are generally produced with pressure angles 30°, 37.5° and 45° as per various DIN and ANSI standards. These hobs can be offered with shoulder clearances in single and multi-thread designs.

Single Thread Gear Hobs

Involute Spline Hobs have straight sides teeth like a gear hob, and are usually of stub tooth depth. They are made in single or multiple thread designs, with diametral pitches ranged from 2.5/5 to 128/256 and pressure angles of 30°, 37.5°, or 45°.

Worm Hobs

Worm gear hobs are provided to manufacture precision worm gears. These hobs can be offered in both shank type, as well as bore type designs. These are specific tools that match the worm shaft with sharpening allowance. Both radial and tangential hobs can be offered in single and multi-start designs.

Sprocket Hobs

Sprocket hobs are designed and produced for the formation of chain sprocket tooth forms by the gear hob manufacturers in India. Both topping and non-topping hobs can be offered in single and multi-thread designs as per various standards including DIN, BS, ANSI, JIS etc.

S K S hobs

These hobs have special curved tooth forms to produce straight key splines on shafts. Spline hobs produce exact tooth forms at given tooth depth. Various profile features including lugs and semi-topping can be incorporated on these hobs

SF Hobbs

These hobs are offered for various special tooth forms such as timing pulleys, ratchets, chamfering ring gears, etc.

Shank type gear hobs

Shanks Hobs are offered for today’s high-speed cutting application. These hobs are mainly used on  CNC machines. Shank Hobs can be offered with long cutting rows in single and multi-thread designs.

Special Drive Hobs

Special Drive Hobs can be designed and manufactured for any special requirement – from OD and face clamping to clutch key ways with special hubs.

Gear Cutting Tools and Precision Solutions for the Manufacture of Gears

S.S. Tools is one of the top gear hob cutter manufacturers in the world today, catering to the needs of the modern gear manufacturing industry. Our gear hob cutters are precision-engineered yet rugged to deliver good performance in every application. From spur, helical, and worm gears, S.S. Tools can give you reliable and efficient cutting tools for your production process.

Applications of Gear Hob Cutters by S.S. Tools

Our gear hobs are widely used in production across industries for producing accurate and efficient gear. Some of the critical applications are as follows:

  • Automotive: Mass production of the very best gears for motors and transmission.
  • Aerospace: Critical aircraft engine gearbox and flight control system gears.
  • Industrial machinery: Gears in heavy-duty equipment and large gearboxes.
  • Robotics and Automation: High-accuracy gear cutting for arms and other machine work applications involving robotic and automated machinery.
  • Machining Power Tools: A large and small quantity of complex gears are constructed for hand-held devices and other precision machinery.

Benefits of S.S. Tools Gear Hob Cutters

  • Higher Productivity: Our gear hob cutters allow you to gear cut much faster and with greater accuracy, enhancing the productivity of your operations.
  • Cost Savings: S.S. Tools gear hob cutters’ accurate cutting abilities reduce the secondary finishing, which saves more labor and time.
  • Cross Application: These tools are used on all types of gear profiles, such as spur, helical, and worm gears.
  • Durability: The S.S. Tools gear hob cutters are very durable. Proper care will certainly help extend the tool’s life.
  • Custom Solution: We can quickly come up with custom gear hob cutters to develop solutions according to the specific requirements of gear manufacturing in any particular industry.

Features of S.S. Tools Gear Hob Cutters

  • Advanced Coatings: Gear hob cutters possess advanced coatings for better cutting performance and tool life.
  • Clean Tooth Profile Cutting: The gear hob cutting profiles are sharp, accurate edge profiles, which ensure clean gear teeth with minimal or zero additional finishing.
  • Modular Sizes: Various module sizes are offered to meet the most demanding gear specification requirements supported by S.S. Tools gear hob cutters, giving you flexibility in your gear production.
  • Straight and Helical Options: We offer gear hob cutters with straight and spiral profiles to fit the individual requirements of your manufacturing process.

Other Things to Consider When You Are Choosing Your S.S. Tools Gear Hob Cutters

  • Interchangeability: Ensure that the gear hob cutter you select is interchangeable with the particular needs of your hobbing machine and material demand.
  • Tolerances: Select a cutter that will meet the specific tolerance requirement of your application.
  • Lubrication: Proper proportion of lubricant usage will extend the life of your cutter and improve its cutting performance.
  • Maintenance: Regular sharpening and checking of your gear hob cutters ensure optimum tool performance.

FAQ's

A gear hob cutter from S.S. Tools is a precision tool designed to cut the teeth of gears. The hobbing machine on which it operates revolves the cutter while constantly sculpting the gear’s teeth, producing a highly precise and clean cut.

The S.S. Tools basis of choice between gear hob cutters primarily incorporates the cutter material (HSS or carbide), the coating type, and the module size to match the required gear profile. Gear-machining compatibility must be considered, including spur, helical, and worm gears, for better performance.

Routine servicing of S.S. Tools gear hob cutters includes:

  • Checking the edges of the cutting edge for wear.
  • Sharpen the cutter as needed.
  • Proper lubrication is also needed when cutting.
  • It may need to be recoated periodically to maximize the tool’s life.

The main difference between gear hob cutters and gear shaper cutters lies in their cutting motion. Gear hob cutters work in continuous rotation throughout the cutting process, whereas gear shaper cutters work using a reciprocating action. Gear hobbing is used to produce external gears at high production; otherwise, gear shaping can also be used on internal gear profiles.

Set up appropriately with S.S. Tools gear hob cutters with a workpiece attached to the machine. Remember proper attire, personal protection gear, gloves, safety glasses, and adequate lubrication to avoid overheating and prematurely wearing the cutter.

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