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Product DetailParallel Keys With Center Counterbored Hole
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Product Detail
Please visit MISUMI website for details of the models available for sale.
Product Overview
Machine Keys
A key that relies on two side surfaces as working surfaces, and transfers torque by pressing the sides of the key and the keyway.
A key that relies on two side surfaces as working surfaces, and transfers torque by pressing the sides of the key and the keyway.
Dimensional Drawing
| C-KEDZ C-KEDSZ | C-KESZ | C-KEGZ |
| Type |  Material | Tensile strength | ||
| Round at Both Ends Shape A | Straight Shape B | Round at One End Shape C | ||
| C-KESZ | C-KEDZ | C-KEGZ | Steel | 500 N/mm² or more |
| - | C-KEDSZ | - | Stainless Steel | |
Specification Table
| Part Number |  Total Length L | H Tolerance | (d) | (d1) | (h) | C | |||||||
 Type |  Width Bh9 | ||||||||||||
| C-KESZ C-KEDZ C-KEGZ C-KEDSZ | 8 | 0 -0.036 | 15 | 20 | 25 | 7 | 0 -0.09 | 3.4 | 6 | 3.5 | 0.25～0.40 | ||
| 10 | 30 | 8 | 4.5 | 7.5 | 4.5 | 0.40～0.60 | |||||||
| 14 | 0 -0.043 | 35 | 9 | 5.5 | 9.5 | 5.5 | |||||||
Please visit MISUMI website for details of the models available for sale.| L | Tolerance |
| Shortest~10 | 0 -0.36 |
| 12~18 | 0 -0.43 |
| 20~28 | 0 -0.52 |
| 32~50 | 0 -0.62 |
| 56~80 | 0 -0.74 |
| 90~110 | 0 -0.87 |
Product Features
Machine Keys, 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.
Machine Keys are divided into three types: standard machine keys, thin machine keys, guiding machine keys.
Standard machine 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 machine keys are used for thin-walled structures and places where the transmission torque is small; guiding machine keys are used to fix the keys on the shaft with screws, and are used for occasions where the parts on the shaft donot move much along the shaft.
■Difference between MISUMI Economy series parallel key and generic products on the market※
Economy series product is different in tolerance compared to the standard product, and at the same time the price drops significantly.
· For MISUMI Economy series parallel keys, the tensile strength can meet the requirements of medium and low speed use. The dimensional tolerance conforms to GB standard, with guaranteed material and stable performance
■Quality:
Round R Angle: MISUMI Economy series incorporates imported cutting tools and strictly complies with GB standard. For generic products on the market, the accuracy of round R angle is poor, and it cannot be completely matched during assembly.
※The test data are obtained through testing by our company, which are for reference only
※Generic products on the market are similar products randomly purchased by our company from online or offline markets
Machine Keys are divided into three types: standard machine keys, thin machine keys, guiding machine keys.
Standard machine 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 machine keys are used for thin-walled structures and places where the transmission torque is small; guiding machine keys are used to fix the keys on the shaft with screws, and are used for occasions where the parts on the shaft donot move much along the shaft.
■Difference between MISUMI Economy series parallel key and generic products on the market※
Economy series product is different in tolerance compared to the standard product, and at the same time the price drops significantly.· For MISUMI Economy series parallel keys, the tensile strength can meet the requirements of medium and low speed use. The dimensional tolerance conforms to GB standard, with guaranteed material and stable performance
■Quality:
Round R Angle: MISUMI Economy series incorporates imported cutting tools and strictly complies with GB standard. For generic products on the market, the accuracy of round R angle is poor, and it cannot be completely matched during assembly.
※The test data are obtained through testing by our company, which are for reference only
※Generic products on the market are similar products randomly purchased by our company from online or offline markets
Precautions
1) When the keyway is used in conjunction with the machine key, if the clearance is too large, the machine key will not fix completely due to loosening.
2) When the keyway and the machine key are used too tightly, the machine key cannot be installed in the keyway.
2) When the keyway and the machine key are used too tightly, the machine key cannot be installed in the keyway.
Example of Use
Part Number
- Incomplete part number.
Please use left hand selections to complete a part number.
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| Part Number |
|---|
| C-KEDZ8-20 |
| C-KEGZ8-20 |
| C-KESZ8-20 |
| Part Number | Price | Minimum Order Qty. | Volume Discount | Days to Ship | RoHS | Shape |
|---|---|---|---|---|---|---|
₹ 65.00 | 10 Piece(s) | Available | Same day | 10 | [Parallel Keys (Straight)] Parallel Keys (Straight) | |
₹ 65.00 | 10 Piece(s) | Available | Same day | 10 | Parallel Keys (Round at One End) | |
₹ 216.00 | 10 Piece(s) | Available | Same day | 10 | Parallel Keys (Round at Both Ends) |
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Basic Information
| Width(mm) | 8 | Overall Length(mm) | 20 | Material | Steel |
|---|---|---|---|---|---|
| Hole Machining | Counterbored Hole | Main Body Hardened | Not Provided |
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What kinds of materials do parallel keys generally have?
- Answer: There are two materials: steel and stainless steel.
- Question: How to distinguish the use of parallel keys according to the different shapes?
- Answer: Choose different shapes to use, depending on the keyway shape and position.
- Question: What do I need to pay attention to when using parallel keys?
- Answer: When the fit clearance is too large, it is easy to loosen and cannot be completely fixed, and when it is too tight, it may be unable to install.
- Question: What is the effect of removing threaded hole on the parallel key?
- Answer: It can facilitate disassembly and reuse without damaging the shaft and keyway.
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