Gear Milling Cutters

Cutter types

Involute gear cutters

Single cutters from module 0.1 to 55 (inch pitches 120 DP to 0.5 DP) for a specific number of teeth, or in sets of 8 covering the full tooth-count range for a given module. When ordering a single cutter, specify the cutter number or the number of teeth to be cut.

Stepped-up roughing cutters

Alternating plain and serrated form for fast roughing of large gears before finishing.

Form milling cutters

Form-relieved cutters for any tooth form, standard or non-standard, based on the customer's specification.

Rack milling cutters

Module 0.5 to 6.0, cutting length to 300 mm, in CTI accuracy grades AAA, AA and A (AAA is tighter than DIN class AA). Supplied with up to 15° spiral gash and optional chip breakers for better finish and chip clearance. Custom-made to your requirements, including profile and lead crowning in convex or concave forms. Also rack-type cutters for MAAG, Sunderland and other gear planing machines, double-helical to 1 DP (module 25.4).

Spline and thread milling cutters

Spline milling cutters for straight and involute splines, with or without lugs, and thread milling cutters.

Sprocket cutters

For roller-chain sprocket teeth to BS, ANSI (ASA) and DIN standards.

Other CTI tools, quoted on request

Power skiving cutters for Eifco E-skive and other skiving machines, gear shaving cutters (module 0.8–8, 30–3 DP, 170–260 mm), master gears, bevel gear blades for Gleason, Oerlikon, Klingelnberg and WMW systems, and rack-type cutters for MAAG and Sunderland machines. Send the print and we will quote.

Applications

• Automotive and truck steering: rack milling for steering racks.
• Heavy machinery and mining: large-module gears cut on milling machines.
• Prototype and repair work: one-off gears where a dedicated hob is not justified.
• Robotics and motion control: small-module precision gears.

Why buy CTI tooling through CTI-USA

• Single cutters or full sets. One cutter for a specific tooth count or a set of eight covering every count for the module, in standard or custom forms.
• One manufacturer, every gear cutting tool. Hobs, shaper cutters, power skiving cutters, broaches and milling cutters from Capital Tool Industries, a single ISO 9001 source in Patiala, India, so profiles and tolerances are consistent across your process.
• Materials and coatings that fit the job. M2, M35, ASP 2030, ASP 2052, ASP 2060, S290 and S390 high-speed steels (conventional and powder-metallurgy); TiN, TiCN, TiAlN, AlCrN (Alcrona) and Altensa PVD coatings. Our engineers recommend the combination for your workpiece, hardness and volume. Properly specified coatings typically extend tool life 3–8× compared with uncoated tools.
• Inspection you can read. Each tool is measured on Klingelnberg equipment and ships with its report.
• US-based support. Prints, technical questions and quotes are handled from Hudson, Ohio (Monday–Friday, 8:00 am–5:00 pm Eastern); we reply within one business day. Typical lead time is 6–8 weeks.
• Resharpening and recoating. We arrange resharpening and recoating of hobs, shaper cutters and broaches of any make, so you get the full regrind life out of every one.

Send us a print

Email a part drawing or tool drawing to sales@cti-usa.co or use the request-a-quote form (PDF, DWG, DXF, STEP, IGES or an image, up to 8 MB through the request form; larger files by email (ask for a transfer link over 20 MB)). Tell us the module or DP and pressure angle, number of teeth (or set of 8), tooth form, material, and quantity, and we will recommend a tool steel and coating with the quote. We reply within one business day; typical lead time is 6–8 weeks.