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)
Overall Length(mm)
Material
  • 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)

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

        Parallel Keys with Tapped Counterbores (MISUMI)

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

            Tapered Machine Keys with Gib Head (MISUMI)

              Key Material (S45C) (Trusco Nakayama)

                New JIS Double Square End Key (Himeno Precision Works)

                  Dual Round Key (Nankai)

                    New JIS, Parallel Key (Himeno Precision Works)

                      Parallel Keys - Blank (MISUMI)

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

                          SEIKI Machine Key, Key Material (Seiki 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)

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

                                      Former JIS Parallel Key (Himeno Precision Works)

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

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

                                            Parallel Key Seiki Seisakusho (Sunco)

                                              Single Round Key, Made by SEIKI Manufacturing (Sunco)

                                                Parallel Key Both Round Seiki Seisakusho (Sunco)

                                                  Parallel Key Both Round Himeno Precision Works, Inc. (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

                                                                                    Himeno Precision Works

                                                                                    MISUMI

                                                                                    Seiki Works

                                                                                    MISUMI

                                                                                    Trusco Nakayama

                                                                                    Himeno Precision Works

                                                                                    Nankai

                                                                                    Himeno Precision Works

                                                                                    MISUMI

                                                                                    Seiki Works

                                                                                    Seiki Works

                                                                                    MISUMI

                                                                                    Himeno Precision Works

                                                                                    Nankai

                                                                                    HALDER

                                                                                    Katayama Chain

                                                                                    Himeno Precision Works

                                                                                    ESCO

                                                                                    Trusco Nakayama

                                                                                    Sunco

                                                                                    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)

                                                                                    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)

                                                                                    Tapered Machine Keys with Gib Head (MISUMI)

                                                                                    Key Material (S45C) (Trusco Nakayama)

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

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

                                                                                    New JIS, Parallel Key (Himeno Precision Works)

                                                                                    Parallel Keys - Blank (MISUMI)

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

                                                                                    SEIKI Machine Key, Key Material (Seiki 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)

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

                                                                                    Former JIS Parallel Key (Himeno Precision Works)

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

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

                                                                                    Parallel Key Seiki Seisakusho (Sunco)

                                                                                    Single Round Key, Made by SEIKI Manufacturing (Sunco)

                                                                                    Parallel Key Both Round Seiki Seisakusho (Sunco)

                                                                                    Parallel Key Both Round Himeno Precision Works, Inc. (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

                                                                                    11 Days Same Day

                                                                                    Stock Items Included

                                                                                    11 Days 11 Days 4 Days 11 Days Same Day

                                                                                    Stock Items Included

                                                                                    11 Days 4 Days 4 Days 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
                                                                                    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 (One Side Round) / Parallel (Both Sides Round)Parallel (Straight) / Parallel (One Side Round) / Parallel (Both Sides Round)Tapered KeyParallel (Straight)Parallel (Straight)Parallel (Both Sides Round)Parallel (Straight)-Parallel (Straight) / Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight)-Parallel (One Side Round)Parallel (Straight)Parallel (Straight)Parallel (One Side Round) / Parallel (Both Sides Round)Parallel (Straight)-Parallel (Both Sides Round)Parallel (Straight)Parallel (One Side Round)Parallel (Both Sides Round)Parallel (Both Sides Round)-----------------
                                                                                                                                                                Hole MachiningStraightCounterbore HoleStraightCenter TappedCenter Tapped + Counterbore HoleStraightCounterbore + Tapped HoleStraightStraightStraightStraightStraightStraightStraightCenter TappedStraightStraightStraightStraight-StraightStraight-StraightStraightStraightStraightStraight-----------------
                                                                                                                                                                Width(mm)2 ~ 328 ~ 182 ~ 365 ~ 188 ~ 184 ~ 328 ~ 182 ~ 144 ~ 383 ~ 363 ~ 254 ~ 142 ~ 563 ~ 185 ~ 122 ~ 142 ~ 143 ~ 324 ~ 1412・10 ~ 20・363 ~ 164 ~ 50-3 ~ 1253 ~ 54 ~ 203 ~ 5-----------------
                                                                                                                                                                Overall Length(mm)6 ~ 110-5 ~ 250--8 ~ 215-5 ~ 10034 ~ 32330010 ~ 1508 ~ 20030030010 ~ 1003503508 ~ 18010 ~ 8020 ~ 5010 ~ 50300-8 ~ 80148 ~ 2012 ~ 1507 ~ 15-----------------
                                                                                                                                                                MaterialSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelStainless SteelStainless SteelSteel / Stainless SteelSteelSteelSteelSteel / Stainless Steel-SteelSteelStainless SteelSteel / Stainless SteelSteel / Stainless Steel-----------------

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