Parallel Keys Semi-Finished
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MISUMI
- **RoHS Compliant is available for some part numbers.
Please contact with MISUMI for detail effective date.
This is an economy item, The price is cheaper than the MISUMI standard product.
Product Overview
Parallel key Semi-finished product
Customers can process by themselves according to different size requirements.
Product photo
Customers can process by themselves according to different size requirements.
Product photo
Dimensional Drawing
For C-KET, L=300 For C-KETS, L=350| Type |  Material | Tensile Strength |
| C-KET | Steel | 500 N/mm² or above |
| C-KETS | Stainless Steel |
If there are requirements for rust prevention, give priority to products made of stainless steel.Specification Overview
| Part Number | H Tolerance | C | |||
| Type | Width Bh9 | ||||
| C-KET (L=300) | 3 | 0 -0.025 | 3 | 0 -0.025 | 0.16 to 0.25 |
| 4 | 0 -0.030 | 4 | 0 -0.030 | ||
| 5 | 5 | 0.25 to 0.40 | |||
| 6 | 6 | ||||
| 7 | 7 | ||||
| 8 | 0 -0.036 | 0 -0.090 | |||
| 10 | 8 | 0.40 to 0.60 | |||
| 12 | 0 -0.043 | ||||
| 14 | 9 | ||||
| 16 | 10 | ||||
| 18 | 11 | 0 -0.110 | |||
| Part Number | H Tolerance | C | |||
| Type | Width Bh9 | ||||
| C-KETS (L=350) | 3 | +0.015 -0.025 | 3 | +0.015 -0.025 | 0.3 |
| 4 | 4 | ||||
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
