Nika Gears

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Guides for Gear Buyers and Engineers

Short, practical guides on the questions that come up before a gear is ordered: what the part is, how accurate it has to be, what it should be made of, how it is cut and what drives the price.

Helical gears and a long helical pinion shaft from our production
  • 5guides
  • DIN · ISOstandards explained
  • No drawing?start with guide 1
  • 24 hfirst answer to an RFQ
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What Do You Need to Know Before Ordering a Gear?

Each guide takes a few minutes to read and ends with a checklist or a table you can use on your own drawing.

Small steel spur gear next to a coin for scale
Guide 01

How to measure a gear and find its module

Tooth count, tip diameter and one formula: identify a spur or helical gear before you order a new one.

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Gear wheel on a CNC gear inspection machine
Guide 02

Gear accuracy grades: DIN 3962 and ISO 1328

What the quality grades mean, what hobbing and grinding reach, and which grade to put on the drawing.

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Hardness tester used to check heat-treated gears
Guide 03

Gear materials and heat treatment

Case hardening, induction hardening, nitriding or quench and temper, with typical steels and hardness values.

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Large double helical gear on a gear hobbing machine
Guide 04

Gear hobbing, shaping or grinding

Which process cuts which gear, and how the process shapes your design and the price.

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Series batch of cluster gears on a pallet
Guide 05

What does a custom gear cost?

The eight price drivers, how to compare quotations and a checklist for a gear RFQ.

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Inspector measuring a machined gear part next to the technical drawing
Your question

Not covered here?

Send the drawing or describe the drive. We answer technical questions before we quote.

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About these guides

Who Are These Guides For?

They are written for buyers, design engineers and maintenance teams in Europe who order custom gears, not catalogue parts. Buyers find what belongs in an enquiry and how to compare quotations. Engineers find the standards, materials and process limits that decide whether a design is easy or expensive to make. Maintenance teams find out how to identify a worn gear when the drawing is gone.

Nika Gears produces spur, helical, bevel, planetary and internal gears, gear racks, pinion shafts and splined shafts to customer drawings in İzmir, Türkiye. The guides describe how we look at a drawing before we quote it.

Have a question we did not cover?

Send the drawing, or photos and a few dimensions. We reply with an answer, questions or a quotation.

Send a drawing →or WhatsApp +90 552 102 13 22 · first answer within 24 h