Talk to Our
Gear Engineers
Send a drawing, worn sample, or key parameters — our engineers respond within 24 working hours with a technical assessment and confirmed delivery timeline.
When You Contact Us, Here's What You Get
Every inquiry is handled by a qualified gear engineer — not a sales script. We focus on understanding your application before discussing pricing.
Response within 24 Working Hours
Standard inquiries acknowledged within one working day. Complex custom designs and reverse engineering requests within 48 hours. Urgent mill-down situations same day.
Free Specification Review
Our engineers review your module, material grade, accuracy class, and application parameters at no cost — flagging over-specifications that add cost without performance benefit.
Reverse Engineering Accepted
No drawing? Send the worn gear. OES spectrometer identifies material grade. Gear analyser measures all tooth parameters. Confirmed replacement specification within 5 working days.
Firm Lead Time Commitment
Delivery date confirmed at order placement — not revised post-order. Expedited schedules of 10–14 working days achievable when raw material is in our warehouse.
Reach Our Engineering Team
All technical enquiries go directly to application engineers — not an auto-responder or call centre.
Email Enquiries
Send drawings (DWG, PDF, STEP), photos of worn gears, or technical specifications. The more detail you include in your first message, the faster our response.
Factory & Office Address
Located in the Ansan-si industrial zone, Gyeonggi-do — approximately 45 minutes from Seoul Gimpo Airport. Factory visits welcome by prior appointment.
Ansan-si, Gyeonggi-do
Korea
Response Times
Available Monday–Friday 09:00–18:00 KST. All inquiries receive a technical acknowledgement — not an auto-reply.
What to Include in Your Inquiry
The more information you include upfront, the faster and more accurate your quotation. Use this checklist before sending your first message.
No Drawing? No Problem.
Korea Ever-Power accepts worn gear samples for reverse engineering as a standard service. Ship the gear to our Ansan-si facility. We measure all tooth geometry by gear analyser, confirm material by OES spectrometer, and supply a full dimensional report — included in the quotation for the replacement gear order. No minimum order quantity.
Frequently Asked Questions
Answers our engineering team provides most often to procurement managers and design engineers.
Minimum required: normal module (Mn), number of teeth (Z), helix angle (β), face width (b), bore diameter, material grade or hardness requirement, and quantity. A drawing in DWG, PDF, or STEP format is preferred. If parameters are unavailable, send the worn gear for reverse engineering — standard service included in the quotation.
Yes. Common equivalents: 42CrMo (GB) = 42CrMo4 (DIN) = 4140 (ASTM) = SCM440 (JIS); 17CrNiMo6 (GB/DIN) for railway traction; 20CrMnTi (GB) ≈ 20MnCr5 (DIN) for carburized gears. We provide material certificates confirming chemical composition and mechanical properties.
Standard package: material certificate (heat number, chemical analysis, mechanical properties), hardness test record, gear analyser report (profile/lead/pitch per DIN 3962), 100% MPI certificate, and dimensional inspection report vs drawing tolerances. PPAP, classification society survey, and additional NDE arranged on request at quotation stage.
- Small gears (M1–M12, OD ≤ 200mm) in stock materials: 15–20 working days
- Medium gears (M12–M30) with carburizing: 4–6 weeks
- Large cast-steel gears (OD > 500mm): 8–14 weeks
For mill-down or dry-dock urgencies, contact us with your required date — we confirm the fastest achievable schedule based on current production loading.
Yes — no minimum order quantity. Single-piece prototype and engineering sample orders are accepted. For prototype orders where production volume may follow, indicate the anticipated production quantity so we can provide appropriate pricing for both phases in the same quotation.
Standard terms: 30% T/T deposit on order placement, 70% balance before shipment. Letters of Credit (L/C) accepted for large orders. Extended payment terms available for established customers — discuss at quotation stage.
Korea Ever-Power supplies both loose gears and completely assembled helical gearbox reducer units (housing, shafts, bearings, seals, oil-fill). For a bolt-on drive, provide torque, ratio, input speed, mounting configuration, and dimensional envelope — we recommend or custom-design an appropriate unit.
Still Have a Question?
Engineers available Mon–Fri 09:00–18:00 KST. Email is the most effective channel — attach drawings, photos, and specifications directly.
💡 The more technical detail you include in your first message, the faster we can respond with a meaningful answer — not a request for more information.
Trusted by Engineers in 40+ Countries
Full In-House Manufacturing
Forging, hobbing, heat treatment, tooth grinding, CMM — all at our Ansan-si, Korea facility. No outsourcing of critical operations.
ISO 9001 Quality System
ISO 9001:2015 certified. 100% MPI on all ground gear surfaces. Permanent traceability marking on every gear body shipped.
HÖFLER German Grinding
HÖFLER gear grinding machines — DIN Class 3–5, Ra 0.3–0.6 μm. Same equipment platform as European aerospace and railway gear manufacturers.
Reverse Engineering
OES spectrometer material analysis + gear analyser measurement from worn samples. Confirmed replacement specification within 5 business days.
🔒 Inquiry information is used solely to respond to your technical request and is never shared with third parties.
Our Engineers Are Ready.
Let's Build Your Gear.
Prototype, scheduled overhaul supply, or new machine design — Korea Ever-Power is your direct helical gear manufacturing partner in Korea.
🔒 We respect your privacy. Your information is never shared with third parties.
