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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

    Parallel Keys

      Parallel Keys - With Counterbore

        Parallel Keys - With Tapped Hole

          Parallel Keys - Stainless Steel

            Parallel Keys - Blank

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

                Parallel Keys - With Tapped Counterbore Hole

                  New JIS double-rounded key

                    Parallel Keys - With Counterbores and Tapped Hole

                      New JIS, One-Side Round Key

                        Both Ends Round

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

                            Former JIS Parallel Key

                              Tapered Machine Keys with Gib Head

                                SEIKI Machine Key, Standard Series (JIS B 1301)

                                  SEIKI Machine Key, Key Material

                                    Single Round Key, Made by SEIKI Manufacturing

                                    Brand

                                    MISUMI_Test

                                    MISUMI_Test

                                    MISUMI_Test

                                    MISUMI_Test

                                    MISUMI_Test

                                    SEIKI

                                    MISUMI_Test

                                    HIMENO PRECISION

                                    MISUMI_Test

                                    HIMENO PRECISION

                                    NANKAI INDUSTRY

                                    SEIKI

                                    HIMENO PRECISION

                                    MISUMI_Test

                                    SEIKI

                                    SEIKI

                                    SUNCO

                                    Product Series

                                    Parallel Keys

                                    Parallel Keys - With Counterbore

                                    Parallel Keys - With Tapped Hole

                                    Parallel Keys - Stainless Steel

                                    Parallel Keys - Blank

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

                                    Parallel Keys - With Tapped Counterbore Hole

                                    New JIS double-rounded key【1-100 Pieces Per Package】

                                    Parallel Keys - With Counterbores and Tapped Hole

                                    New JIS, One-Side Round Key【1-25 Pieces Per Package】

                                    Both Ends Round

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

                                    Former JIS Parallel Key

                                    Tapered Machine Keys with Gib Head

                                    SEIKI Machine Key, Standard Series (JIS B 1301)

                                    SEIKI Machine Key, Key Material

                                    Single Round Key, Made by SEIKI Manufacturing

                                    CAD
                                    • 2D / 3D
                                    • 2D / 3D
                                    • 2D / 3D
                                    • 2D / 3D
                                    • 2D / 3D
                                    • 2D / 3D
                                    • 2D / 3D
                                    • 2D / 3D
                                    Days to Ship 1 Day(s) or more 4 Day(s) or more 4 Day(s) or more 1 Day(s) or more 1 Day(s) or more 2 Day(s) or more 4 Day(s) or more 1 Day(s) or more 4 Day(s) or more 1 Day(s) or more 4 Day(s) or more 6 Day(s) or more 1 Day(s) 4 Day(s) or more 1 Day(s) or more 1 Day(s) 5 Day(s) or more
                                    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 (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)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 (Round at One End)Parallel Keys (Round at Both Ends)Parallel Keys (Straight) / Parallel Keys (Round at One End)Parallel Keys (Straight)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)
                                    Width(mm)2 ~ 188 ~ 185 ~ 182 ~ 143 ~ 182 ~ 36124 ~ 148 ~ 184 ~ 15125 ~ 8184 ~ 382 ~ 124 ~ 64
                                    Overall Length(mm)6 ~ 11015 ~ 11010 ~ 1203503005 ~ 24920 ~ 8010 ~ 12535 ~ 11015 ~ 1004550 ~ 9030034 ~ 3238 ~ 8035018
                                    Hole MachiningStraightCounterbored HoleCenter TappedStraightStraightStraightCounterbored + TappedStraightCenter Tapped + CounterboredStraightStraightCenter TappedStraightStraightStraightStraightStraight
                                    MaterialSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelStainless SteelSteelSteel / Stainless SteelStainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelStainless SteelStainless Steel

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                                    Related Categories to Machine Keys