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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

  1. 1
Brand
Product Series
CAD
Days to Ship
Specifications
Shape
Width(mm)
Overall Length(mm)
Material
Hole Machining
  • Recommendation

Parallel Keys Straight / Round at One End / Round at Both End

  • Recommendation

Parallel Keys With Center Counterbored Hole

    Parallel Keys

      Parallel Keys - Blank

        Parallel Keys - With Tapped Hole

          Parallel Keys Semi-Finished

            Parallel Keys - With Counterbore

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

                Woodruff Key

                  Key material (S45C)

                    Parallel Keys - With Counterbores and Tapped Hole

                      Parallel Keys - Stainless Steel

                        SEIKI Machine Key, Standard Series (JIS B 1301)

                          New JIS Parallel Key

                            Parallel Keys - With Tapped Counterbore Hole

                              Old JIS Parallel Key

                                Parallel Keys With Tapped Hole

                                  New JIS Parallel Machine Key

                                    Parallel Key Both Round Seiki Seisakusho

                                      Both Ends Round

                                        New JIS Single Round End Key

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

                                            SEIKI Machine Key, Key Material

                                              Parallel key both round type (S45C)

                                                Single Round Key, Made by SEIKI Manufacturing

                                                  Tapered Machine Keys with Gib Head

                                                    Parallel Keys  With Counterbores and Tapped Hole

                                                      Parallel Keys With Tapped Counterbored Hole

                                                        Both Ends Square

                                                          New JIS Double Round End Key

                                                            Parallel Key Seiki Seisakusho

                                                              Parallel Key Both Round Himeno Precision Works, Inc.

                                                                Old JIS Head Gradient Key

                                                                  New JIS Headed Gradient Key, by Himeno Seisakusho

                                                                  Brand

                                                                  MISUMI

                                                                  MiSUMi Economy

                                                                  MISUMI

                                                                  MiSUMi Economy

                                                                  MISUMI

                                                                  MISUMI

                                                                  MISUMI

                                                                  MISUMI

                                                                  MiSUMi Economy

                                                                  MISUMI

                                                                  SEIKI

                                                                  OHKITA

                                                                  TRUSCO NAKAYAMA

                                                                  MISUMI

                                                                  MISUMI

                                                                  SEIKI

                                                                  HIMENO PRECISION

                                                                  MISUMI

                                                                  HIMENO PRECISION

                                                                  MISUMI

                                                                  MiSUMi Economy

                                                                  HIMENO PRECISION

                                                                  SUNCO

                                                                  NANKAI INDUSTRY

                                                                  HIMENO PRECISION

                                                                  SEIKI

                                                                  SEIKI

                                                                  TRUSCO NAKAYAMA

                                                                  SUNCO

                                                                  MISUMI

                                                                  MISUMI

                                                                  MiSUMi Economy

                                                                  MISUMI

                                                                  MiSUMi Economy

                                                                  NANKAI INDUSTRY

                                                                  HIMENO PRECISION

                                                                  SUNCO

                                                                  SUNCO

                                                                  SUNCO

                                                                  SUNCO

                                                                  Product Series

                                                                  Parallel Keys Straight / Round at One End / Round at Both End

                                                                  Parallel Keys With Center Counterbored Hole

                                                                  Parallel Keys

                                                                  Parallel Keys - Blank

                                                                  Parallel Keys - With Tapped Hole

                                                                  Parallel Keys Semi-Finished

                                                                  Parallel Keys - With Counterbore

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

                                                                  Woodruff Key

                                                                  Key material (S45C)

                                                                  Parallel Keys - With Counterbores and Tapped Hole

                                                                  Parallel Keys - Stainless Steel

                                                                  SEIKI Machine Key, Standard Series (JIS B 1301)

                                                                  New JIS Parallel Key

                                                                  Parallel Keys - With Tapped Counterbore Hole

                                                                  Old JIS Parallel Key

                                                                  Parallel Keys With Tapped Hole

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

                                                                  Parallel Key Both Round Seiki Seisakusho

                                                                  Both Ends Round【1-500 Pieces Per Package】

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

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

                                                                  SEIKI Machine Key, Key Material

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

                                                                  Single Round Key, Made by SEIKI Manufacturing

                                                                  Tapered Machine Keys with Gib Head

                                                                  Parallel Keys With Counterbores and Tapped Hole

                                                                  Parallel Keys With Tapped Counterbored Hole

                                                                  Both Ends Square【1-100 Pieces Per Package】

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

                                                                  Parallel Key Seiki Seisakusho

                                                                  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
                                                                  • 2D / 3D
                                                                  • 2D / 3D
                                                                  • 2D / 3D
                                                                  • 2D / 3D
                                                                  • 2D / 3D
                                                                  Days to Ship Same day or more Same day Same day or more Same day 15 Day(s) or more 5 Day(s) or more 15 Day(s) or more 1 Day(s) or more 8 Day(s) or more 1 Day(s) or more 15 Day(s) or more Same day or more 8 Day(s) or more Same day or more 15 Day(s) or more 8 Day(s) or more Same day 8 Day(s) or more Same day or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 8 Day(s) or more 1 Day(s) or more 8 Day(s) or more 15 Day(s) or more Same day or more 5 Day(s) 13 Day(s) or more 8 Day(s) or more 8 Day(s) or more Same day or more 8 Day(s) or more 8 Day(s) or more
                                                                  Specifications
                                                                                • STOCK
                                                                                  • STOCK
                                                                                                            • STOCK
                                                                                                                                ShapeParallel 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 (Round at One End) / 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 (Round at Both Ends)Woodruff KeysParallel Keys (Straight)Parallel Keys (Straight) / Parallel Keys (Round at One End) / 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 (Straight) / Parallel Keys (Round at One End) / 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 Both Ends)Parallel Keys (Round at Both Ends)Parallel Keys (Round at One End)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 (Round at One End)Tapered Machine KeysParallel 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 Both Ends)Parallel Keys (Straight)Parallel Keys (Round at Both Ends)Tapered Machine KeysTapered Machine Keys
                                                                                                                                Width(mm)3 ~ 882 ~ 323 ~ 185 ~ 185 ~ 128 ~ 182 ~ 363 ~ 103 ~ 368 ~ 182 ~ 142 ~ 142 ~ 568 ~ 184 ~ 5053 ~ 284 ~ 204 ~ 143 ~ 325 ~ 122 ~ 143 ~ 123 ~ 54 ~ 388124 ~ 144 ~ 3253 ~ 515 ~ 2012
                                                                                                                                Overall Length(mm)10 ~ 40205 ~ 30030010 ~ 12030015 ~ 1105 ~ 250-30035 ~ 1103505 ~ 10030015 ~ 1103002010 ~ 16512 ~ 1508 ~ 1508 ~ 18010 ~ 1003508 ~ 808 ~ 2034 ~ 323702510 ~ 808 ~ 180147 ~ 15110 ~ 15090
                                                                                                                                MaterialSteelSteelSteel / Stainless SteelSteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelStainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelStainless SteelSteelStainless SteelSteelSteelSteelSteelSteel / Stainless SteelSteelSteel / Stainless SteelSteelSteel
                                                                                                                                Hole MachiningStraightCounterbored HoleStraightStraightCenter TappedStraightCounterbored HoleStraightStraightStraightCenter Tapped + CounterboredStraightStraightStraightCounterbored + TappedStraightCenter TappedStraightStraightStraightStraightCenter TappedStraightStraightStraightStraightCounterbored + TappedCounterbored + TappedStraightStraightStraightStraightStraightStraight

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