Parallel Keys Straight / Round at One End / Round at Both End
Brand :
MISUMI
Caution
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Product Description
・ Product type: Parallel Keys, C-KED, C-KEG, C-KES series.
・ Machine key width [mm]: 2, 3, 4, 5, 6, 8, 10, 12
・ Overall length [mm]: 8, 10, 12, 15, 16, 18, 20, 25, 30, 32, 35, 40, 45, 50, 55, 60, 70, 80
・ Machine Keys are divided into three types, Parallel Keys (Straight), Parallel Keys (Round at One End), Parallel Keys (Round at Both Ends)
・ This is an economy item; The price is cheaper than the MISUMI standard product.
Product Overview
Parallel key
A key that relies on two side surfaces as working surfaces, and transfers torque by pressing the sides of the key and the keyway.
Product photo
A key that relies on two side surfaces as working surfaces, and transfers torque by pressing the sides of the key and the keyway.
Product photo
Dimensional Drawing
Material Specifications
| Type |  Material | Tensile Strength | ||
| Round at Both Ends Shape A | Straight Shape B | Round at One End Shape C | ||
| C-KES | C-KED | C-KEG | Steel Material | 500 N/mm2 or above |
| C-KESF | C-KEDF | C-KEGF | ||
| C-KESH | C-KEDH | C-KEGH | Steel 25 to 30HRC | 600 N/mm2 or above |
| C-KESS | C-KEDS | C-KEGS | Stainless Steel | 500 N/mm2 or above |
Specification Table
| Part Number |  Total length L | H Tolerance | C | |||||||||||||||||||||||||||||
 Type |  Width Bh9 | |||||||||||||||||||||||||||||||
| C-KES C-KESF C-KESH C-KESS (Double Round Head Type A) C-KED C-KEDF C-KEDH C-KEDS (Straight-through Type B) C-KEG C-KEGF C-KEGH C-KEGS (Single Round Head C Type) | 2 | 0 -0.025 | 6* | 8* | 9 | 10* | 12 | 15* | 2 | 0 -0.025 | 0.16 to 0.25 | |||||||||||||||||||||
| 3 | 6* | 8* | 10 | 12 | 15* | 16* | 18* | 20 | 25 | 30* | 3 | |||||||||||||||||||||
| 4 | 0 -0.030 | 8* | 10 | 12 | 15* | 16 | 18* | 20 | 25 | 30* | 40* | 50* | 4 | 0 -0.030 | ||||||||||||||||||
| 5 | 10 | 11 | 12 | 15* | 16 | 18 | 20 | 22* | 25 | 29 | 30 | 35 | 40 | 45* | 50 | 60* | 5 | 0.25 to 0.40 | ||||||||||||||
| 6 | 10* | 12* | 15* | 16* | 18* | 20 | 22 | 25 | 28* | 30 | 32* | 35* | 40* | 45* | 50* | 60* | 6 | |||||||||||||||
| 7 | 0 -0.036 | 25* | 7 | 0 -0.090 | ||||||||||||||||||||||||||||
| 8 | 10* | 12 | 15 | 16 | 18* | 20* | 22* | 24 | 25 | 28* | 30 | 32* | 35* | 40* | 45* | 50* | 55* | 70* | 80* | 90* | ||||||||||||
| 10 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 70 | 75 | 80 | 90 | 100 | 8 | 0.40 to 0.60 | |||||||||||||||||
| 12 | 0 -0.043 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 52 | 60 | 80 | 90 | ||||||||||||||||||||
| 14 | 35 | 38 | 9 | |||||||||||||||||||||||||||||
| 18 | 70 | 120 | 11 | 0 -0.110 | ||||||||||||||||||||||||||||
| 20 | 0 -0.052 | 67 | 12 | 0.60 to 0.80 | ||||||||||||||||||||||||||||
| 22 | 45 | 14 | ||||||||||||||||||||||||||||||
Product Features
Parallel key, is a key that relies on two side surfaces as working surfaces, and transfers torque by pressing the sides of the key and the keyway.
Parallel keys are divided into three types: standard parallel keys, thin parallel keys, guiding parallel keys.
Standard parallel keys have good centering, high positioning accuracy and easy assembly, but they cannot achieve axial fixation of parts on the shaft. They are used for shafts that are high-speed or subjected to impact and variable loads;
Thin parallel keys are used for thin-walled structures and places where the transmission torque is small; guiding parallel keys are used to fix the keys on the shaft with screws, and are used for occasions where the parts on the shaft do not move much along the shaft.
Parallel keys are divided into three types: standard parallel keys, thin parallel keys, guiding parallel keys.
Standard parallel keys have good centering, high positioning accuracy and easy assembly, but they cannot achieve axial fixation of parts on the shaft. They are used for shafts that are high-speed or subjected to impact and variable loads;
Thin parallel keys are used for thin-walled structures and places where the transmission torque is small; guiding parallel keys are used to fix the keys on the shaft with screws, and are used for occasions where the parts on the shaft do not move much along the shaft.
Precautions
1) When the keyway is used in conjunction with the parallel key, if the clearance is too large, the parallel key will not fix completely due to loosening.
2) When the keyway and the parallel key are used too tightly, the parallel key cannot be installed in the keyway.
2) When the keyway and the parallel key are used too tightly, the parallel key cannot be installed in the keyway.
Example of Use
Example of using parallel key
