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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

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

        Parallel Keys - With Counterbores and Tapped Hole

          Parallel Keys - With Counterbore

            SEIKI Machine Key, Standard Series (JIS B 1301)

              Parallel Keys - Blank

                Tapered Machine Keys with Gib Head

                  Parallel Keys - With Tapped Hole

                    New JIS Parallel Key

                      Woodruff Key

                        New JIS Double Round End Key

                          New JIS Parallel Machine Key

                            Both Ends Round

                              New JIS Single Round End Key

                                Parallel Keys - With Tapped Counterbore Hole

                                  New JIS Headed Gradient Key, by Himeno Seisakusho

                                    Parallel Keys - Stainless Steel

                                      Old JIS Parallel Key

                                        Key material (S45C)

                                          Parallel Key Seiki Seisakusho

                                            Parallel Key Both Round Seiki Seisakusho

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

                                                Both Ends Square

                                                  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

                                                          Parallel Key Both Round Himeno Precision Works, Inc.

                                                            Old JIS Head Gradient Key

                                                            Brand

                                                            MISUMI

                                                            SEIKI

                                                            MISUMI

                                                            MISUMI

                                                            SEIKI

                                                            MISUMI

                                                            MISUMI

                                                            MISUMI

                                                            HIMENO PRECISION

                                                            OHKITA

                                                            HIMENO PRECISION

                                                            HIMENO PRECISION

                                                            NANKAI INDUSTRY

                                                            HIMENO PRECISION

                                                            MISUMI

                                                            SUNCO

                                                            MISUMI

                                                            HIMENO PRECISION

                                                            TRUSCO NAKAYAMA

                                                            SUNCO

                                                            SUNCO

                                                            KATAYAMA CHAIN

                                                            NANKAI INDUSTRY

                                                            SEIKI

                                                            SEIKI

                                                            TRUSCO NAKAYAMA

                                                            SUNCO

                                                            SUNCO

                                                            SUNCO

                                                            Product Series

                                                            Parallel Keys

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

                                                            Parallel Keys - With Counterbores and Tapped Hole

                                                            Parallel Keys - With Counterbore

                                                            SEIKI Machine Key, Standard Series (JIS B 1301)

                                                            Parallel Keys - Blank

                                                            Tapered Machine Keys with Gib Head

                                                            Parallel Keys - With Tapped Hole

                                                            New JIS Parallel Key

                                                            Woodruff Key

                                                            New JIS Double Round End Key【1-300 Pieces Per Package】

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

                                                            Both Ends Round【1-500 Pieces Per Package】

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

                                                            Parallel Keys - With Tapped Counterbore Hole

                                                            New JIS Headed Gradient Key, by Himeno Seisakusho

                                                            Parallel Keys - Stainless Steel

                                                            Old JIS Parallel Key

                                                            Key material (S45C)

                                                            Parallel Key Seiki Seisakusho

                                                            Parallel Key Both Round Seiki Seisakusho

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

                                                            Both Ends Square【1-100 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

                                                            Parallel Key Both Round Himeno Precision Works, Inc.

                                                            Old JIS Head Gradient Key

                                                            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 6 Day(s) or more 8 Day(s) or more 8 Day(s) or more 6 Day(s) or more Same day or more 8 Day(s) or more 8 Day(s) or more 6 Day(s) or more 6 Day(s) or more 6 Day(s) or more 6 Day(s) or more 6 Day(s) or more 6 Day(s) or more 8 Day(s) or more 7 Day(s) or more Same day 6 Day(s) or more 6 Day(s) or more 7 Day(s) or more 6 Day(s) or more 6 Day(s) or more 7 Day(s) or more 6 Day(s) or more 6 Day(s) or more 6 Day(s) 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 (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)Tapered Machine KeysParallel Keys (Straight) / Parallel Keys (Round at One End) / Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Woodruff KeysParallel Keys (Round at Both Ends)Parallel Keys (Straight)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)Tapered Machine KeysParallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Round at Both Ends)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 One End)Parallel Keys (Round at Both Ends)Tapered Machine Keys
                                                            Width(mm)2 ~ 322 ~ 368 ~ 188 ~ 182 ~ 143 ~ 184 ~ 385 ~ 182 ~ 563 ~ 104 ~ 323 ~ 284 ~ 143 ~ 328 ~ 18122 ~ 144 ~ 503 ~ 3654 ~ 203 ~ 164 ~ 145 ~ 122 ~ 143 ~ 123 ~ 53 ~ 515 ~ 20
                                                            Overall Length(mm)5 ~ 3005 ~ 25035 ~ 11015 ~ 1105 ~ 10030034 ~ 32310 ~ 120300-8 ~ 21510 ~ 1658 ~ 2008 ~ 18015 ~ 110903503003001412 ~ 15010 ~ 5010 ~ 8010 ~ 1003508 ~ 808 ~ 207 ~ 15110 ~ 150
                                                            Hole MachiningStraightStraightCenter Tapped + CounterboredCounterbored HoleStraightStraightStraightCenter TappedStraightStraightStraightStraightStraightStraightCounterbored + TappedStraightStraightStraightStraightStraightStraightStraightStraightCenter TappedStraightStraightStraightStraightStraight
                                                            MaterialSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelStainless SteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelStainless SteelSteelStainless SteelSteel / Stainless SteelSteel

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