Gear Hardening Services in Ludhiana
Precision tooth-by-tooth induction hardening for spur, helical, bevel and ring gears — 58–62 HRC with controlled case depth and minimal distortion. Trusted job work for automotive, tractor and industrial transmission gears across Punjab.
Looking for reliable gear hardening services in Ludhiana? At Thakur Industries, our precision induction gear hardening job work raises gear-tooth surfaces to 58–62 HRC while keeping the core ductile enough to absorb impact and vibration. We serve Ludhiana's automotive, tractor and industrial OEM clusters with consistent, high-accuracy hardening for spur, helical, bevel and ring gears, pinions and splines.
Types of Gears We Harden
Different gear geometries require specialised induction-coil designs. We provide customised hardening profiles for:
- Spur & Helical Gears
- Bevel & Miter Gears
- Internal & Ring Gears
- Pinions & Splines
- Worm Gears
- Drive Sprockets
// MATERIALS //
Gear Steel Grades We Harden
We induction-harden all common gear steels. Explore our dedicated material-grade pages for hardness, case depth and application detail:
// SPECIFICATIONS //
Gear Hardening Specifications
| Surface Hardness | 58–62 HRC (gear-tooth surface) |
|---|---|
| Case Depth | 0.8 mm – 3.5 mm (controlled to spec) |
| Max Gear Diameter (in-house) | Up to 1500 mm |
| Gear Types | Spur, helical, bevel, ring, worm, pinions, sprockets |
| Steel Grades | EN8, EN19, EN24, 4140, 20MnCr5, EN36C |
| Heating Temperature | 900–950 °C (induction) |
| Quench Medium | Polymer / water-based, controlled |
| Turnaround | 2–4 working days (standard) |
| Testing | HRC verification, case-depth check, dimensional inspection |
Technical Targets
Hardness Range
HRC 58–62 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 minimises 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 hardening 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
// PRICING & TURNAROUND //
Gear Hardening Rates & Lead Time
We offer competitive gear hardening rates for both prototype batches and bulk OEM production. Final pricing depends on gear weight, size, case depth, steel grade and quantity — share your drawing for an exact quote within 24 hours.
Pricing Basis
Per kg or per piece, with reduced rates on bulk and repeat OEM orders.
Minimum Order
No rigid minimum — single trial gears to multi-thousand-piece lots accepted.
Turnaround
Standard 2–4 working days; urgent same-week jobs for regular clients.
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.
// PROCESS //
Our Gear Hardening Process
Gear Profile Analysis
We assess gear tooth geometry, module, material and required case-depth specification.
Precision Induction Hardening
Custom-wound induction coils ensure uniform tooth-surface heating at 900–950 °C with controlled polymer quenching.
Quality Testing & Certification
HRC testing on multiple teeth, case-depth verification and dimensional inspection before dispatch.
// WHY CHOOSE US //
Why OEMs Trust Thakur Industries
Consistent 58–62 HRC
Repeatable hardness on every gear, batch after batch.
ISO-Grade Process
Documented, traceable hardening for OEM supply chains.
Years of Experience
Serving Ludhiana’s automotive & tractor gear makers.
Fast Turnaround
2–4 day standard delivery keeps your line running.
Related Services
Gear Hardening FAQs
Learn more about the metallurgy of surface hardening from the ASM International heat-treatment resources.
Last updated: June 2026 · Thakur Industries, Ludhiana, Punjab
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.