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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

Brand
Product Series
CAD
Days to Ship
Shape
Width(mm)
Overall Length(mm)
Hole Machining
Material

    Parallel Keys

      Parallel Keys - With Tapped Hole

        New JIS double-rounded key

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

            Parallel Keys - With Counterbore

              Parallel Keys - Blank

                Parallel Keys - With Counterbores and Tapped Hole

                  Parallel Keys - Stainless Steel

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

                      Parallel Key Both Round Seiki Seisakusho

                        Parallel Keys - With Tapped Counterbore Hole

                          New JIS Double Square End Key

                            SEIKI Machine Key, Standard Series (JIS B 1301)

                              Tapered Machine Keys with Gib Head

                                KANA standard machine key SUS316 New JIS B1301(h9)

                                  Carbon steel used for KANA standard machine key mechanical structure new JIS B1301(h9)

                                    Key material (S45C)

                                      Single Round Key, Made by SEIKI Manufacturing

                                        Machine Key Set [Inch] EA968ZC-100

                                          Machine Key Set EA968ZC-130

                                            Both Ends Round

                                              Both Ends Square

                                                New JIS, One-Side Round Key

                                                  SEIKI Machine Key, Key Material

                                                    New JIS Parallel Key

                                                      Former JIS Parallel Key

                                                        Parallel key both round type (S45C)

                                                          Parallel Key Seiki Seisakusho

                                                            Parallel Key Both Round Himeno Precision Works, Inc.

                                                              Double Square-ended Machine Key EA968ZD-1

                                                                Double Square-ended Machine Key EA968ZD-10

                                                                  Double Square-ended Machine Key EA968ZD-11

                                                                    Double Square-ended Machine Key EA968ZD-12

                                                                      Double Square-ended Machine Key EA968ZD-13

                                                                        Double Square-ended Machine Key EA968ZD-14

                                                                          Double Square-ended Machine Key EA968ZD-15

                                                                            Double Square-ended Machine Key EA968ZD-16

                                                                              Double Square-ended Machine Key EA968ZD-17

                                                                                Double Square-ended Machine Key EA968ZD-18

                                                                                  Double Square-ended Machine Key EA968ZD-19

                                                                                    Double Square-ended Machine Key EA968ZD-2

                                                                                      Double Square-ended Machine Key EA968ZD-20

                                                                                        Double Square-ended Machine Key EA968ZD-21

                                                                                          Double Square-ended Machine Key EA968ZD-22

                                                                                            Double Square-ended Machine Key EA968ZD-23

                                                                                            Brand

                                                                                            MISUMI

                                                                                            MISUMI

                                                                                            HIMENO PRECISION

                                                                                            SEIKI

                                                                                            MISUMI

                                                                                            MISUMI

                                                                                            MISUMI

                                                                                            MISUMI

                                                                                            SEIKI

                                                                                            SUNCO

                                                                                            MISUMI

                                                                                            HIMENO PRECISION

                                                                                            SEIKI

                                                                                            MISUMI

                                                                                            KATAYAMA CHAIN

                                                                                            KATAYAMA CHAIN

                                                                                            TRUSCO NAKAYAMA

                                                                                            SUNCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            NANKAI INDUSTRY

                                                                                            NANKAI INDUSTRY

                                                                                            HIMENO PRECISION

                                                                                            SEIKI

                                                                                            HIMENO PRECISION

                                                                                            HIMENO PRECISION

                                                                                            TRUSCO NAKAYAMA

                                                                                            SUNCO

                                                                                            SUNCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            Product Series

                                                                                            Parallel Keys

                                                                                            Parallel Keys - With Tapped Hole

                                                                                            New JIS double-rounded key【1-300 Pieces Per Package】

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

                                                                                            Parallel Keys - With Counterbore

                                                                                            Parallel Keys - Blank

                                                                                            Parallel Keys - With Counterbores and Tapped Hole

                                                                                            Parallel Keys - Stainless Steel

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

                                                                                            Parallel Key Both Round Seiki Seisakusho

                                                                                            Parallel Keys - With Tapped Counterbore Hole

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

                                                                                            SEIKI Machine Key, Standard Series (JIS B 1301)

                                                                                            Tapered Machine Keys with Gib Head

                                                                                            KANA standard machine key SUS316 New JIS B1301(h9)

                                                                                            Carbon steel used for KANA standard machine key mechanical structure new JIS B1301(h9)

                                                                                            Key material (S45C)

                                                                                            Single Round Key, Made by SEIKI Manufacturing

                                                                                            Machine Key Set [Inch] EA968ZC-100

                                                                                            Machine Key Set EA968ZC-130

                                                                                            Both Ends Round【1-500 Pieces Per Package】

                                                                                            Both Ends Square【1-100 Pieces Per Package】

                                                                                            New JIS, One-Side Round Key【1-500 Pieces Per Package】

                                                                                            SEIKI Machine Key, Key Material

                                                                                            New JIS Parallel Key

                                                                                            Former JIS Parallel Key

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

                                                                                            Parallel Key Seiki Seisakusho

                                                                                            Parallel Key Both Round Himeno Precision Works, Inc.

                                                                                            Double Square-ended Machine Key EA968ZD-1

                                                                                            Double Square-ended Machine Key EA968ZD-10

                                                                                            Double Square-ended Machine Key EA968ZD-11

                                                                                            Double Square-ended Machine Key EA968ZD-12

                                                                                            Double Square-ended Machine Key EA968ZD-13

                                                                                            Double Square-ended Machine Key EA968ZD-14

                                                                                            Double Square-ended Machine Key EA968ZD-15

                                                                                            Double Square-ended Machine Key EA968ZD-16

                                                                                            Double Square-ended Machine Key EA968ZD-17

                                                                                            Double Square-ended Machine Key EA968ZD-18

                                                                                            Double Square-ended Machine Key EA968ZD-19

                                                                                            Double Square-ended Machine Key EA968ZD-2

                                                                                            Double Square-ended Machine Key EA968ZD-20

                                                                                            Double Square-ended Machine Key EA968ZD-21

                                                                                            Double Square-ended Machine Key EA968ZD-22

                                                                                            Double Square-ended Machine Key EA968ZD-23

                                                                                            CAD
                                                                                            • 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 5 Day(s) or more Same day or more 3 Day(s) or more 5 Day(s) or more Same day or more 5 Day(s) or more Same day or more 3 Day(s) or more 3 Day(s) or more 5 Day(s) or more 3 Day(s) or more Same day or more 5 Day(s) or more 8 Day(s) or more 3 Day(s) or more 3 Day(s) or more 4 Day(s) or more 4 Day(s) or more 3 Day(s) or more 3 Day(s) or more 4 Day(s) or more Same day or more Same day or more Same day or more Same day or more 3 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 5 Day(s) or more 3 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 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 (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 (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)Tapered Machine KeysParallel 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 (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Round at One End)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Round at Both Ends)----------------
                                                                                            Width(mm)2 ~ 325 ~ 184 ~ 322 ~ 368 ~ 183 ~ 188 ~ 182 ~ 145 ~ 124 ~ 208 ~ 183 ~ 282 ~ 144 ~ 383 ~ 123 ~ 183 ~ 363 ~ 5--4 ~ 144 ~ 143 ~ 322 ~ 142 ~ 564 ~ 503 ~ 1253 ~ 5----------------
                                                                                            Overall Length(mm)5 ~ 30010 ~ 1208 ~ 2155 ~ 25015 ~ 11030035 ~ 11035010 ~ 10012 ~ 15015 ~ 11010 ~ 1655 ~ 10034 ~ 32310 ~ 4010 ~ 603008 ~ 20--8 ~ 25010 ~ 808 ~ 1803503003008 ~ 80147 ~ 15----------------
                                                                                            Hole MachiningStraightCenter TappedStraightStraightCounterbored HoleStraightCenter Tapped + CounterboredStraightCenter TappedStraightCounterbored + TappedStraightStraightStraightStraightStraightStraightStraight--StraightStraightStraightStraightStraightStraightStraightStraightStraight----------------
                                                                                            MaterialSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelStainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteelStainless SteelSteelSteelStainless Steel--Steel / Stainless SteelSteelSteel / Stainless SteelStainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteel / Stainless Steel----------------

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