Gear Induction Hardening
Extend gear life with precision tooth-by-tooth surface hardening. We specialize in enhancing wear resistance and load-bearing capacity for spur, helical, and bevel gears used in automotive and industrial transmissions.
Gears and pinions are the heart of power transmission. At Thakur Industries, our induction heat treatment ensures gear teeth achieve maximum HRC levels while the core remains ductile enough to absorb sudden impact and vibration. Serving Ludhiana's OEM and industrial clusters with consistent, high-accuracy job work.
Types of Gears We Harden
Different gear geometries require specialized induction coil designs. We provide customized hardening profiles for:
- Spur & Helical Gears
- Bevel & Miter Gears
- Internal & Ring Gears
- Pinions & Splines
- Worm Gears
- Drive Sprockets

Technical Targets
Hardness Range
HRC 55–62 for maximum wear resistance, tailored to steel grades like 20MnCr5 or EN24.
Case Depth
Precise control from 0.8 mm up to 3.5 mm, ensuring load support without tooth brittleness.
Profile Control
Targeted root and flank hardening to prevent pitting and fatigue failure.
Distortion Control
Selective heating minimizes bore warping, reducing post-process grinding time.
Material Science
Expertise in Carbon Steels, Case Hardening Alloys, and Tool Steels.

Distortion Mitigation
Unlike case carburizing which heats the entire gear, induction only targets the teeth. This results in:
- Maintained bore size and concentricity
- Minimal flank distortion for better tooth contact
- Reduced internal stresses compared to furnace methods
- Pre-fixturing to guarantee geometric accuracy
Quality Assurance
Tooth Root Hardness
Ensuring maximum bending strength at the root fillet.
Flank Profiling
Uniform hardness across the active tooth flank.
Form Inspection
Dimensional verification of tooth profile and lead.
Traceability
Digital logging of every cycle for OEM documentation.
Related Services
Gear Hardening FAQs
Ready to Harden Your Quality?
Contact us for a free consultation. Send your component details or drawings and get a quick quotation within 24 hours.