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
Width(mm)
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  • Degreasing and cleaning

Parallel Keys (MISUMI)

  • Degreasing and cleaning

Parallel Keys with Counterbores (MISUMI)

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

    • Degreasing and cleaning

    Parallel Keys with Tapped Hole (MISUMI)

    • Degreasing and cleaning

    Parallel Keys with Counterbores & Tapped Holes (MISUMI)

      Tapered Machine Keys with Gib Head (MISUMI)

        New JIS, Double-Rounded Key (Himeno Precision Works)

          Parallel Keys with Tapped Counterbores (MISUMI)

            SEIKI Machine Key - Standard Series (JIS B 1301) (Seiki Works)

              New JIS Double Square End Key (Himeno Precision Works)

                SEIKI Machine Key, Key Material (Seiki Works)

                  Parallel Keys - Blank (MISUMI)

                    Dual Round Key (Nankai)

                      New JIS, Parallel Key (Himeno Precision Works)

                        Stainless Steel Machine Keys (MISUMI)

                          New JIS One-Side Round Key (Himeno Precision Works)

                            Both Ends Square (Nankai)

                              Loose Slot Tenons, DIN 6323 (HALDER)

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

                                  Key Material (S45C) (Trusco Nakayama)

                                    Parallel Key Dual Round Type (S45C) (Trusco Nakayama)

                                      Carbon Steel Used for KANA Standard Machine Key - B1301(h9)/SUS316, New JIS (Katayama Chain)

                                        Former JIS Parallel Key (Himeno Precision Works)

                                          Parallel Key Seiki Seisakusho (Sunco)

                                            Double Square-ended Machine Key EA968ZD-13 (ESCO)

                                              Parallel Key Both Round Himeno Precision Works, Inc. (Sunco)

                                                Single Round Key, Made by SEIKI Manufacturing (Sunco)

                                                  Parallel Key Both Round Seiki Seisakusho (Sunco)

                                                    Machine Key Set [Inch] EA968ZC-100 (ESCO)

                                                      Machine Key Set EA968ZC-130 (ESCO)

                                                        Double Square-ended Machine Key EA968ZD-1 (ESCO)

                                                          Double Square-ended Machine Key EA968ZD-10 (ESCO)

                                                            Double Square-ended Machine Key EA968ZD-11 (ESCO)

                                                              Double Square-ended Machine Key EA968ZD-12 (ESCO)

                                                                Double Square-ended Machine Key EA968ZD-14 (ESCO)

                                                                  Double Square-ended Machine Key EA968ZD-15 (ESCO)

                                                                    Double Square-ended Machine Key EA968ZD-16 (ESCO)

                                                                      Double Square-ended Machine Key EA968ZD-17 (ESCO)

                                                                        Double Square-ended Machine Key EA968ZD-18 (ESCO)

                                                                          Double Square-ended Machine Key EA968ZD-19 (ESCO)

                                                                            Double Square-ended Machine Key EA968ZD-2 (ESCO)

                                                                              Double Square-ended Machine Key EA968ZD-20 (ESCO)

                                                                                Double Square-ended Machine Key EA968ZD-21 (ESCO)

                                                                                  Double Square-ended Machine Key EA968ZD-22 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-23 (ESCO)

                                                                                    Brand

                                                                                    MISUMI

                                                                                    MISUMI

                                                                                    Seiki Works

                                                                                    MISUMI

                                                                                    MISUMI

                                                                                    MISUMI

                                                                                    Himeno Precision Works

                                                                                    MISUMI

                                                                                    Seiki Works

                                                                                    Himeno Precision Works

                                                                                    Seiki Works

                                                                                    MISUMI

                                                                                    Nankai

                                                                                    Himeno Precision Works

                                                                                    MISUMI

                                                                                    Himeno Precision Works

                                                                                    Nankai

                                                                                    HALDER

                                                                                    Seiki Works

                                                                                    Trusco Nakayama

                                                                                    Trusco Nakayama

                                                                                    Katayama Chain

                                                                                    Himeno Precision Works

                                                                                    Sunco

                                                                                    ESCO

                                                                                    Sunco

                                                                                    Sunco

                                                                                    Sunco

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    ESCO

                                                                                    Product Series

                                                                                    Parallel Keys (MISUMI)

                                                                                    Parallel Keys with Counterbores (MISUMI)

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

                                                                                    Parallel Keys with Tapped Hole (MISUMI)

                                                                                    Parallel Keys with Counterbores & Tapped Holes (MISUMI)

                                                                                    Tapered Machine Keys with Gib Head (MISUMI)

                                                                                    New JIS, Double-Rounded Key (Himeno Precision Works)【1-100 Pieces Per Package】

                                                                                    Parallel Keys with Tapped Counterbores (MISUMI)

                                                                                    SEIKI Machine Key - Standard Series (JIS B 1301) (Seiki Works)

                                                                                    New JIS Double Square End Key (Himeno Precision Works)【1-100 Pieces Per Package】

                                                                                    SEIKI Machine Key, Key Material (Seiki Works)

                                                                                    Parallel Keys - Blank (MISUMI)

                                                                                    Dual Round Key (Nankai)【1-500 Pieces Per Package】

                                                                                    New JIS, Parallel Key (Himeno Precision Works)

                                                                                    Stainless Steel Machine Keys (MISUMI)

                                                                                    New JIS One-Side Round Key (Himeno Precision Works)【1-500 Pieces Per Package】

                                                                                    Both Ends Square (Nankai)【1-100 Pieces Per Package】

                                                                                    Loose Slot Tenons, DIN 6323 (HALDER)

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

                                                                                    Key Material (S45C) (Trusco Nakayama)

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

                                                                                    Carbon Steel Used for KANA Standard Machine Key - B1301(h9)/SUS316, New JIS (Katayama Chain)

                                                                                    Former JIS Parallel Key (Himeno Precision Works)

                                                                                    Parallel Key Seiki Seisakusho (Sunco)

                                                                                    Double Square-ended Machine Key EA968ZD-13 (ESCO)

                                                                                    Parallel Key Both Round Himeno Precision Works, Inc. (Sunco)

                                                                                    Single Round Key, Made by SEIKI Manufacturing (Sunco)

                                                                                    Parallel Key Both Round Seiki Seisakusho (Sunco)

                                                                                    Machine Key Set [Inch] EA968ZC-100 (ESCO)

                                                                                    Machine Key Set EA968ZC-130 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-1 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-10 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-11 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-12 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-14 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-15 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-16 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-17 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-18 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-19 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-2 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-20 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-21 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-22 (ESCO)

                                                                                    Double Square-ended Machine Key EA968ZD-23 (ESCO)

                                                                                    CAD
                                                                                    • 2D / 3D
                                                                                    • 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 5 Days 4 Days 5 Days Same Day

                                                                                    Stock Items Included

                                                                                    4 Days 4 Days Same Day

                                                                                    Stock Items Included

                                                                                    4 Days 4 Days Same Day

                                                                                    Stock Items Included

                                                                                    4 Days 5 Days 12 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 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)Tapered KeyParallel (Both Sides Round)Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight) / Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight)Parallel (Straight)-Parallel (Both Sides Round)Parallel (Straight)-Parallel (One Side Round)Parallel (Straight)Parallel (Straight)Parallel (Straight) / Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight)Parallel (Both Sides Round)Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight)Parallel (Straight)-Parallel (Both Sides Round)Parallel (One Side Round)Parallel (Both Sides Round)-----------------
                                                                                                                                                                Hole MachiningStraightCounterbore HoleStraightCenter TappedCenter Tapped + Counterbore HoleStraightStraightCounterbore + Tapped HoleStraightStraightStraightStraightStraightStraightStraightStraightStraight-Center TappedStraightStraightStraightStraightStraight-StraightStraightStraight-----------------
                                                                                                                                                                Width(mm)2 ~ 328 ~ 182 ~ 365 ~ 188 ~ 184 ~ 384 ~ 328 ~ 182 ~ 143 ~ 252 ~ 143 ~ 184 ~ 142 ~ 562 ~ 143 ~ 324 ~ 1412・10 ~ 20・365 ~ 123 ~ 363 ~ 123 ~ 164 ~ 505-3 ~ 53 ~ 54 ~ 20-----------------
                                                                                                                                                                Overall Length(mm)6 ~ 110-5 ~ 250--34 ~ 3238 ~ 215-5 ~ 10010 ~ 1503503008 ~ 2003003508 ~ 18010 ~ 8020 ~ 5010 ~ 1003008 ~ 8010 ~ 5030014-7 ~ 158 ~ 2012 ~ 150-----------------
                                                                                                                                                                MaterialSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelStainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelStainless SteelSteel / Stainless SteelSteelSteelSteel / Stainless SteelSteelSteelSteelSteel / Stainless SteelSteel-Steel / Stainless SteelStainless SteelSteel / Stainless Steel-----------------

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