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Machine Keys

Machine keys are parts used to fasten components such as gears, pulleys, sprockets and couplings to rotary shafts. They are used for applications that transmit power in machineries such as motors and reduction drives. Several types of machine keys are available. Parallel keys have the simplest structure. There are also specially shaped varieties such as taper keys and Woodruff keys. Machine keys come in various shapes, such as types with squared-off or rounded ends. There are also product lineups that include models with pre-drilled counterbore holes, taps or the like. Key sizes are defined by JIS standards in Japan. The applicable standard has been revised, so some models are compatible with the new standard and some with the old. The right machine key model should be selected by matching it to the size of the drive unit's shaft and keyway.

Shape

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Brand
Product Series
CAD
Days to Ship
Shape
Width(mm)
Overall Length(mm)
Hole Machining
Material
  • On Sale Till 31/03/2022

Parallel Keys

  • On Sale Till 31/03/2022

New JIS Double Round End Key

    SEIKI Machine Key, Free Length Series (JIS B 1301)

      Parallel Keys - With Counterbore

        Parallel Keys - With Tapped Hole

          SEIKI Machine Key, Standard Series (JIS B 1301)

            Parallel Keys - Stainless Steel

              New JIS Parallel Machine Key

                Parallel Keys - Blank

                • On Sale Till 31/03/2022

                New JIS Single Round End Key

                  Woodruff Key

                    Parallel key both round type (S45C)

                      Parallel Keys - With Counterbores and Tapped Hole

                        Key material (S45C)

                          Both Ends Round

                          • On Sale Till 31/03/2022

                          New JIS Parallel Key

                            KANA Standard Machine Key, Carbon Steel for Machinery, New JIS B1301 (h9)

                              Parallel Key Both Round Seiki Seisakusho

                                Both Ends Square

                                  SEIKI Machine Key Series with Release Tap (JIS B 1301)

                                    SEIKI Machine Key, Key Material

                                      Single Round Key, Made by SEIKI Manufacturing

                                        Parallel Key Seiki Seisakusho

                                          Parallel Keys - With Tapped Counterbore Hole

                                            Tapered Machine Keys with Gib Head

                                            • On Sale Till 31/03/2022

                                            Old JIS Parallel Key

                                              Parallel Key Both Round Himeno Precision Works, Inc.

                                                Old JIS Head Gradient Key

                                                  New JIS Headed Gradient Key, by Himeno Seisakusho

                                                  Brand

                                                  MISUMI

                                                  HIMENO PRECISION

                                                  SEIKI

                                                  MISUMI

                                                  MISUMI

                                                  SEIKI

                                                  MISUMI

                                                  HIMENO PRECISION

                                                  MISUMI

                                                  HIMENO PRECISION

                                                  OHKITA

                                                  TRUSCO NAKAYAMA

                                                  MISUMI

                                                  TRUSCO NAKAYAMA

                                                  NANKAI INDUSTRY

                                                  HIMENO PRECISION

                                                  KATAYAMA CHAIN

                                                  SUNCO

                                                  NANKAI INDUSTRY

                                                  SEIKI

                                                  SEIKI

                                                  SUNCO

                                                  SUNCO

                                                  MISUMI

                                                  MISUMI

                                                  HIMENO PRECISION

                                                  SUNCO

                                                  SUNCO

                                                  SUNCO

                                                  Product Series

                                                  Parallel Keys

                                                  New JIS Double Round End Key【1-100 Pieces Per Package】

                                                  SEIKI Machine Key, Free Length Series (JIS B 1301)【1-10 Pieces Per Package】

                                                  Parallel Keys - With Counterbore

                                                  Parallel Keys - With Tapped Hole

                                                  SEIKI Machine Key, Standard Series (JIS B 1301)

                                                  Parallel Keys - Stainless Steel

                                                  New JIS Parallel Machine Key【1-100 Pieces Per Package】

                                                  Parallel Keys - Blank

                                                  New JIS Single Round End Key【1-500 Pieces Per Package】

                                                  Woodruff Key

                                                  Parallel key both round type (S45C)【5-10 Pieces Per Package】

                                                  Parallel Keys - With Counterbores and Tapped Hole

                                                  Key material (S45C)

                                                  Both Ends Round【1-500 Pieces Per Package】

                                                  New JIS Parallel Key

                                                  KANA Standard Machine Key, Carbon Steel for Machinery, New JIS B1301 (h9)

                                                  Parallel Key Both Round Seiki Seisakusho

                                                  Both Ends Square【1-100 Pieces Per Package】

                                                  SEIKI Machine Key Series with Release Tap (JIS B 1301)

                                                  SEIKI Machine Key, Key Material

                                                  Single Round Key, Made by SEIKI Manufacturing

                                                  Parallel Key Seiki Seisakusho

                                                  Parallel Keys - With Tapped Counterbore Hole

                                                  Tapered Machine Keys with Gib Head

                                                  Old JIS Parallel Key

                                                  Parallel Key Both Round Himeno Precision Works, Inc.

                                                  Old JIS Head Gradient Key

                                                  New JIS Headed Gradient Key, by Himeno Seisakusho

                                                  CAD
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  • 2D / 3D
                                                  Days to Ship Same day or more Same day or more 3 Day(s) or more 5 Day(s) or more 5 Day(s) or more Same day or more Same day or more 4 Day(s) or more Same day or more Same day or more 4 Day(s) or more 4 Day(s) or more 5 Day(s) or more 4 Day(s) or more 4 Day(s) or more Same day or more 4 Day(s) or more 4 Day(s) or more 5 Day(s) or more 4 Day(s) or more Same day or more 7 Day(s) or more 7 Day(s) or more 5 Day(s) or more 5 Day(s) or more Same day or more 7 Day(s) or more 7 Day(s) or more 7 Day(s) or more
                                                  ShapeParallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Round at Both Ends)Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Round at One End)Woodruff KeysParallel Keys (Round at Both Ends)Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Round at One End)Parallel Keys (Straight)Parallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Tapered Machine KeysParallel Keys (Straight)Parallel Keys (Round at Both Ends)Tapered Machine KeysTapered Machine Keys
                                                  Width(mm)2 ~ 324 ~ 322 ~ 368 ~ 185 ~ 182 ~ 142 ~ 143 ~ 283 ~ 183 ~ 323 ~ 103 ~ 128 ~ 183 ~ 364 ~ 142 ~ 563 ~ 164 ~ 204 ~ 145 ~ 122 ~ 143 ~ 558 ~ 184 ~ 384 ~ 503 ~ 515 ~ 2012
                                                  Overall Length(mm)5 ~ 3008 ~ 2155 ~ 25015 ~ 11010 ~ 1205 ~ 10035010 ~ 1653008 ~ 180-8 ~ 8035 ~ 1103008 ~ 20030010 ~ 5012 ~ 15010 ~ 8010 ~ 1003508 ~ 201415 ~ 11034 ~ 3233007 ~ 15110 ~ 15090
                                                  Hole MachiningStraightStraightStraightCounterbored HoleCenter TappedStraightStraightStraightStraightStraightStraightStraightCenter Tapped + CounterboredStraightStraightStraightStraightStraightStraightCenter TappedStraightStraightStraightCounterbored + TappedStraightStraightStraightStraightStraight
                                                  MaterialSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelStainless SteelSteelSteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteelSteel / Stainless SteelStainless SteelStainless SteelSteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel

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