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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 simp ...Readmore
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. ▲ Close
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| Shape | 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 (Straight) | 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) | Parallel (Both Sides Round) | - | Tapered Key | Parallel (Straight) | Parallel (One Side 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) |
| Hole Machining | Straight | Center Tapped | Counterbore Hole | Straight | Center Tapped + Counterbore Hole | Straight | Counterbore + Tapped Hole | Straight | Straight | Straight | Straight | Straight | Straight | Center Tapped | Straight | Straight | Straight | Straight | Straight | - |
| Width(mm) | 2 ～ 32 | 5 ～ 18 | 8 ～ 18 | 2 ～ 56 | 8 ～ 18 | 4 ～ 14 | 8 ～ 18 | 2 ～ 25 | 4 ～ 28 | 3 ～ 18 | 4 ～ 38 | 3 ～ 25 | 3 ～ 28 | 5 ～ 12 | 2 ～ 14 | 4 ～ 14 | 2 ～ 14 | 2 ～ 14 | 4 ～ 50 | 12・10 ～ 20・36 |
| Overall Length(mm) | 6 ～ 110 | - | - | 300 | - | 8 ～ 150 | - | 5 ～ 120 | 8 ～ 150 | 300 | 34 ～ 323 | 10 ～ 150 | 8 ～ 150 | 10 ～ 100 | 350 | 10 ～ 80 | 5 ～ 100 | 350 | 300 | 20 ～ 50 |
| Material | Steel / Stainless Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel | Steel | Steel | Steel / Stainless Steel | Steel / Stainless Steel | Stainless Steel | Steel | Steel / Stainless Steel | Stainless Steel | Steel / Stainless Steel | Steel |
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