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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.

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Shape
Hole Machining
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Material

    Parallel Keys - Length Selectable/Configurable

      Parallel Keys - Counterbored

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

          Parallel Keys - Tapped Hole

            Parallel Keys - Tapped and Counterbored Holes

              New JIS, Double-Rounded Key

                New JIS Double Square End Key

                  Parallel Keys - Tapped, Counterbored Hole

                    Rounded Key

                      Square Machine Keys

                        Parallel Keys - Standard Length, Width Selectable

                          Tapered Machine Keys - Gib Head

                            New JIS One-Side Round Key

                              Dual Round Key

                                SEIKI Machine Key - Standard Series (JIS B 1301)

                                  New JIS, Parallel Key

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

                                      Standard Size Key

                                        Key Material (S45C)

                                          Both Ends Square

                                            Loose Slot Tenons, DIN 6323

                                              Former JIS Parallel Key

                                                Parallel Keys - Stainless Steel

                                                  Parallel Key Stock, Former JIS

                                                    Single-End Rounded Machine Key

                                                      Parallel Key Dual Round Type (S45C)

                                                        Parallel Key Both Round Seiki Seisakusho

                                                          Parallel Key Stock, New JIS

                                                            SEIKI Machine Key, Key Material

                                                              Parallel Key Seiki Seisakusho

                                                                Parallel Key Both Round Himeno Precision Works, Inc.

                                                                  Machine Key Set [Inch] EA968ZC-100

                                                                    Double Square-ended Machine Key EA968ZD-7

                                                                      Single Round Key, Made by SEIKI Manufacturing

                                                                        Machine Key Set EA968ZC-130

                                                                          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

                                                                                            Brand

                                                                                            MISUMI

                                                                                            MISUMI

                                                                                            Seiki Works

                                                                                            MISUMI

                                                                                            MISUMI

                                                                                            Himeno Precision Works

                                                                                            Himeno Precision Works

                                                                                            MISUMI

                                                                                            Ohkita

                                                                                            Ohkita

                                                                                            MISUMI

                                                                                            MISUMI

                                                                                            Himeno Precision Works

                                                                                            Nankai

                                                                                            Seiki Works

                                                                                            Himeno Precision Works

                                                                                            Seiki Works

                                                                                            Seiki Works

                                                                                            Trusco Nakayama

                                                                                            Nankai

                                                                                            HALDER

                                                                                            Himeno Precision Works

                                                                                            MISUMI

                                                                                            Ohkita

                                                                                            Ohkita

                                                                                            Trusco Nakayama

                                                                                            Sunco

                                                                                            Ohkita

                                                                                            Seiki Works

                                                                                            Sunco

                                                                                            Sunco

                                                                                            ESCO

                                                                                            ESCO

                                                                                            Sunco

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            ESCO

                                                                                            Product Series

                                                                                            Parallel Keys - Length Selectable/Configurable

                                                                                            Parallel Keys - Counterbored

                                                                                            SEIKI Machine Key, Free Length Series (JIS B 1301)【1-5 Pieces Per Package】

                                                                                            Parallel Keys - Tapped Hole

                                                                                            Parallel Keys - Tapped and Counterbored Holes

                                                                                            New JIS, Double-Rounded Key【1-100 Pieces Per Package】

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

                                                                                            Parallel Keys - Tapped, Counterbored Hole

                                                                                            Rounded Key

                                                                                            Square Machine Keys

                                                                                            Parallel Keys - Standard Length, Width Selectable

                                                                                            Tapered Machine Keys - Gib Head

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

                                                                                            Dual Round Key【1-500 Pieces Per Package】

                                                                                            SEIKI Machine Key - Standard Series (JIS B 1301)

                                                                                            New JIS, Parallel Key

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

                                                                                            Standard Size Key【1-3 Pieces Per Package】

                                                                                            Key Material (S45C)

                                                                                            Both Ends Square【1-100 Pieces Per Package】

                                                                                            Loose Slot Tenons, DIN 6323

                                                                                            Former JIS Parallel Key

                                                                                            Parallel Keys - Stainless Steel

                                                                                            Parallel Key Stock, Former JIS

                                                                                            Single-End Rounded Machine Key

                                                                                            Parallel Key Dual Round Type (S45C)【5-10 Pieces Per Package】

                                                                                            Parallel Key Both Round Seiki Seisakusho

                                                                                            Parallel Key Stock, New JIS

                                                                                            SEIKI Machine Key, Key Material

                                                                                            Parallel Key Seiki Seisakusho

                                                                                            Parallel Key Both Round Himeno Precision Works, Inc.

                                                                                            Machine Key Set [Inch] EA968ZC-100

                                                                                            Double Square-ended Machine Key EA968ZD-7

                                                                                            Single Round Key, Made by SEIKI Manufacturing

                                                                                            Machine Key Set EA968ZC-130

                                                                                            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

                                                                                            CAD
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 2D / 3D
                                                                                            • 3D
                                                                                            • 2D / 3D
                                                                                            Days to Ship Same Day

                                                                                            Stock Items Included

                                                                                            5 Days Same Day

                                                                                            Stock Items Included

                                                                                            5 Days 5 Days 4 Days 4 Days 5 Days 5 Days 5 Days Same Day

                                                                                            Stock Items Included

                                                                                            5 Days 4 Days 4 Days Same Day

                                                                                            Stock Items Included

                                                                                            4 Days 4 Days 9 Days 4 Days 5 Days 12 Days 4 Days Same Day

                                                                                            Stock Items Included

                                                                                            5 Days 5 Days 4 Days 4 Days 5 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days 4 Days
                                                                                            Specifications
                                                                                            • Rapid Design
                                                                                            • Rapid Design
                                                                                              • Rapid Design
                                                                                              • Rapid Design
                                                                                                  • Rapid Design
                                                                                                        • Rapid Design
                                                                                                                            • Rapid Design
                                                                                                                                                                        ShapeParallel (One Side Round) / Parallel (Both Sides Round)Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight) / Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Both Sides Round)Parallel (Straight)Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Both Sides Round)Parallel (Straight)-Tapered KeyParallel (One Side Round)Parallel (Both Sides Round)Parallel (Straight) / Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight)Parallel (Straight) / Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight)Parallel (Straight)Parallel (Straight)Parallel (Straight)Parallel (Straight)-Parallel (Straight)Parallel (One Side Round)Parallel (Both Sides Round)Parallel (Both Sides Round)Parallel (Straight)Parallel (Straight)Parallel (Straight)Parallel (Both Sides Round)--Parallel (One Side Round)-----------
                                                                                                                                                                        Hole MachiningStraightCounterbore HoleStraightCenter TappedCenter Tapped + Counterbore HoleStraightStraightCounterbore + Tapped HoleStraightStraightStraightStraightStraightStraightStraightStraightCenter TappedStraightStraightStraight-StraightStraightStraightStraightStraightStraightStraightStraightStraightStraight--Straight-----------
                                                                                                                                                                        Width(mm)2 ~ 328 ~ 182 ~ 365 ~ 188 ~ 184 ~ 323 ~ 288 ~ 183 ~ 283 ~ 283 ~ 184 ~ 383 ~ 324 ~ 142 ~ 142 ~ 565 ~ 1228 ~ 453 ~ 364 ~ 1412・10 ~ 20・364 ~ 502 ~ 148 ~ 503 ~ 283 ~ 124 ~ 203 ~ 562 ~ 1453 ~ 5--3 ~ 5-----------
                                                                                                                                                                        Overall Length(mm)6 ~ 110-5 ~ 250--8 ~ 18010 ~ 165-6 ~ 1506 ~ 15030034 ~ 3238 ~ 1808 ~ 1505 ~ 10030010 ~ 100300 ~ 35030010 ~ 8020 ~ 50300350-6 ~ 1508 ~ 8012 ~ 150-350147 ~ 15--8 ~ 20-----------
                                                                                                                                                                        MaterialSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteelSteelSteel / Stainless SteelStainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelStainless SteelSteelSteel / Stainless Steel--Stainless Steel-----------

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