NAKANISHI GEAR CO.,LTD.

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For new customersORDER GUIDE

PROCESS

Micron precision and high-quality product processing
Quality assurance at every level of the production process

Hearing the voice of our clients is the most important step in our production process. As for the processing itself, we direct our accumulated skills for each and every product.

In addition, our high-quality results are proven by the final inspection of high-precision testers.

Our attention to quality at every level of production earned us the ISO9001 quality system certification in 2002.

Tooth-cutting/grinding and other single process orders are evidence of the trust that we have earned with our clients.

認定マーク

  • From initial inquiry to contract

    A contract is finalized only after undergoing the steps of “Query”, “Technology & Design Discussion” and “Estimate”. An agreement is made only after all steps have been concluded to a client’s satisfactions.

    For details, please see our Order Guide.

    order guide

  • Pre-processing for gear cutting

    Process up until tooth-cutting the materials.

    Approximately Φ10～Φ1200 can be handled in-house. Should other sizes be required, they can be provided with the cooperation of other factories.

  • Gear cutting

    The gear cutting process. 20 gear cutters are capable of handling under Φ10 and up to Φ1900 for gears that include external tooth, internal tooth, worm screw and worm wheel.

  • Tempering / heat treatment

    Cooperative factories help us meet carburizing, high frequency, nitriding and other needs of our clients.

  • Pre-processing for grinding

    Precision is improved following heat treatment by finishing the products with lathe processing, milling, key processing and drilling.

  • Grinding

    Grinding of inner diameter, outer diameter and end surfaces are conducted.

    Vertical multitasking grinder simultaneously processes inner diameter, outer diameter and end surfaces to allow high-precision processing of concentricity and perpendicularity.

  • Gear grinding

    Gear grinding process allows the output of high-precision gears that will fully satisfy a designer’s needs.

    External tooth, internal tooth, worm, ball screw, screw rotor and other optional tooth profile shape gears produced according to a client’s diverse needs.

  • Inspection shipment

    Highly precise gear production requires a high precision gear measurement testing. We offer micron precision measurement.

    高精度テスター
    HIGH PRECISION TESTER
    • HIGH PRECISION TESTER-1
    • HIGH PRECISION TESTER-2
    • HIGH PRECISION TESTER-3
    • HIGH PRECISION TESTER-4

FACILITIES

  • Lathe machine
    9Unit
    Max Φ700 x 2000
  • Turning center
    1Unit
    Max Φ1300 x 400
  • Milling machine
    3Unit
    1000 x 300 x 500
  • Machining center
    2Unit
    1100 x 700 x 500
  • Hobbing machine
    15Unit
    Max M30 x Φ1900 x 1000
  • Gear grinding machine
    8Unit
    External gear grinding　Max M30 x Φ1900 x 1000
    Internal gear grinding　Min M0.5 x Φ50 x 200
    Worm screw grinding 　Max M30 x Φ500 x 1200
  • Worm grinding machine
    3Unit
    Max Φ250 x 2000
  • Horizontal gear cutting machine
    3Unit
    Max M10 x Φ400 x 3000
  • Grinding machine
    2Unit
    Axis grinding　Φ300 x 900
    Vertical type grinding Outer diameter　Max Φ800 x 500
    Inner diameter　(Φ45)～Φ800 x 300
  • Shaper
    2Unit
    Max M6.6 Φ700 x 170
  • Keyseater machine
    2Unit
    Max 50W x Φ400 x 400
  • Rack milling machine
    1Unit
    Max M12 Φ1500
  • Radial drilling machine
    2Unit
    MAX Piercing ability　Φ42
    Piercing ability　M25
  • Gear tester
    2Unit
    Max M30 Φ1200 x 800　Makes it possible to measure tooth profile gears at random
  • Worm wheel gear rolling tester
    2Unit
    Max Φ2250