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Machine Keys(Hole Machining:Straight)

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

  • Parallel Keys (Straight)
  • Parallel Keys (Round at One End)
  • Parallel Keys (Round at Both Ends)
  • Tapered Machine Keys
  • Woodruff Keys
  1. 1
Brand
Product Series
CAD
Days to Ship
Shape
Width(mm)
Overall Length(mm)
Material
Hole Machining
  • Recommendation

Parallel Keys Straight / Round at One End / Round at Both End

  • On Sale Till 31/03/2025

Parallel Keys

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

    • On Sale Till 31/03/2025

    New JIS Double Round End Key

      Rounded Key

        Parallel Key Stock, New JIS

          Parallel Keys - Stainless Steel

            Parallel Keys Semi-Finished

              Both Ends Round

              • On Sale Till 31/03/2025

              New JIS Single Round End Key

                SEIKI Machine Key, Standard Series (JIS B 1301)

                  Parallel Keys - Blank

                  • On Sale Till 31/03/2025

                  New JIS Parallel Key

                    New JIS Parallel Machine Key

                      Key material (S45C)

                        Tapered Machine Keys with Gib Head

                          Square Machine Keys

                          • On Sale Till 31/03/2025

                          Old JIS Parallel Key

                            Parallel key both round type (S45C)

                              Both Ends Square

                                Parallel Key Seiki Seisakusho

                                  Woodruff Key

                                    Single-End Rounded Machine Key

                                      Single Round Key, Made by SEIKI Manufacturing

                                        Parallel Key Both Round Himeno Precision Works, Inc.

                                          New JIS Headed Gradient Key, by Himeno Seisakusho

                                            SEIKI Machine Key, Key Material

                                              Parallel Key Both Round Seiki Seisakusho

                                                Old JIS Head Gradient Key

                                                  Standard Size Key

                                                    Parallel Key Stock, Former JIS

                                                    Brand

                                                    MISUMI

                                                    MiSUMi Economy80

                                                    MISUMI

                                                    SEIKI

                                                    HIMENO PRECISION

                                                    OHKITA

                                                    OHKITA

                                                    MISUMI

                                                    MISUMI

                                                    MiSUMi Economy69

                                                    NANKAI INDUSTRY

                                                    HIMENO PRECISION

                                                    SEIKI

                                                    MISUMI

                                                    HIMENO PRECISION

                                                    HIMENO PRECISION

                                                    TRUSCO NAKAYAMA

                                                    MISUMI

                                                    OHKITA

                                                    HIMENO PRECISION

                                                    TRUSCO NAKAYAMA

                                                    NANKAI INDUSTRY

                                                    SUNCO

                                                    OHKITA

                                                    OHKITA

                                                    SUNCO

                                                    SUNCO

                                                    SUNCO

                                                    SEIKI

                                                    SUNCO

                                                    SUNCO

                                                    SEIKI

                                                    OHKITA

                                                    Product Series

                                                    Parallel Keys Straight / Round at One End / Round at Both End

                                                    Parallel Keys

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

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

                                                    Rounded Key

                                                    Parallel Key Stock, New JIS

                                                    Parallel Keys - Stainless Steel

                                                    Parallel Keys Semi-Finished

                                                    Both Ends Round【1-150 Pieces Per Package】

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

                                                    SEIKI Machine Key, Standard Series (JIS B 1301)

                                                    Parallel Keys - Blank

                                                    New JIS Parallel Key

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

                                                    Key material (S45C)

                                                    Tapered Machine Keys with Gib Head

                                                    Square Machine Keys

                                                    Old JIS Parallel Key

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

                                                    Both Ends Square【1-100 Pieces Per Package】

                                                    Parallel Key Seiki Seisakusho

                                                    Woodruff Key

                                                    Single-End Rounded Machine Key

                                                    Single Round Key, Made by SEIKI Manufacturing

                                                    Parallel Key Both Round Himeno Precision Works, Inc.

                                                    New JIS Headed Gradient Key, by Himeno Seisakusho

                                                    SEIKI Machine Key, Key Material

                                                    Parallel Key Both Round Seiki Seisakusho

                                                    Old JIS Head Gradient Key

                                                    Standard Size Key【1-2 Pieces Per Package】

                                                    Parallel Key Stock, Former JIS

                                                    CAD
                                                    • 2D / 3D
                                                    • 2D / 3D
                                                    • 2D / 3D
                                                    • 2D / 3D
                                                    • 2D / 3D
                                                    • 2D / 3D
                                                    Days to Ship Same day or more Same day or more 4 Day(s) or more Same day or more 8 Day(s) or more 8 Day(s) or more Same day or more Same day or more 4 Day(s) or more Same day or more Same day or more Same day or more Same day or more 4 Day(s) or more 8 Day(s) 6 Day(s) or more 8 Day(s) or more Same day or more 4 Day(s) or more 4 Day(s) or more 7 Day(s) or more 4 Day(s) or more 9 Day(s) or more 7 Day(s) or more 7 Day(s) or more 7 Day(s) or more Same day or more 7 Day(s) or more 7 Day(s) or more 13 Day(s) or more 8 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 (Round at Both Ends)Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Straight)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)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Straight)Tapered Machine KeysParallel Keys (Straight)Parallel Keys (Straight)Parallel Keys (Round at Both Ends)Parallel Keys (Straight)Parallel Keys (Straight)Woodruff KeysParallel Keys (Round at One End)Parallel Keys (Round at One End)Parallel Keys (Round at Both Ends)Tapered Machine KeysParallel Keys (Straight)Parallel Keys (Round at Both Ends)Tapered Machine KeysParallel Keys (Straight)Parallel Keys (Straight)
                                                    Width(mm)2 ~ 122 ~ 322 ~ 254 ~ 283 ~ 363 ~ 562 ~ 145 ~ 124 ~ 143 ~ 282 ~ 143 ~ 182 ~ 563 ~ 253 ~ 364 ~ 383 ~ 364 ~ 503 ~ 124 ~ 1453 ~ 103 ~ 323 ~ 53 ~ 5122 ~ 144 ~ 2015 ~ 203 ~ 228 ~ 50
                                                    Overall Length(mm)8 ~ 805 ~ 3005 ~ 1208 ~ 1506 ~ 150-3503008 ~ 1508 ~ 1505 ~ 10030030010 ~ 15030034 ~ 3236 ~ 1503008 ~ 8010 ~ 8014-6 ~ 1008 ~ 207 ~ 159035012 ~ 150110 ~ 150300 ~ 350-
                                                    MaterialSteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelStainless SteelSteelSteel / Stainless SteelSteel / Stainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteelSteelSteelSteel / Stainless SteelSteel / Stainless SteelSteelSteelSteelSteelSteel / Stainless SteelStainless SteelSteel / Stainless SteelSteelStainless SteelSteel / Stainless SteelSteelSteel / Stainless SteelSteel / Stainless Steel
                                                    Hole MachiningStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraightStraight

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