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MISUMI Machine Keys（Shape：Parallel Keys (Straight)）
MISUMI offers products Machine Keys specified by Shape Parallel Keys (Straight) from Fasteners product category. There are a total of 15 items. The most popular types of screws, bolts, washers, nuts and bolts that can be used with all types of fastening work. MISUMI products are available to order through MISUMI online 24 hours a day. Free shipping, no minimum order.
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[10-110/5mm Unit(s)][5-300/1mm Unit(s)]
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Material
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- Stainless Steel
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Hole Machining
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Straight -
Counterbored Hole -
Counterbored + Tapped -
Center Tapped -
Center Tapped + Counterbored
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Cleaning Method
- Degreasing
- Precision Cleaning
- Electrolytic Polishing + Precision Cleaning
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RecommendedYou can add up to 6 items per a category to the compare list.
Parallel Keys Straight/Round at One End/Round at Both Ends - C-KED, C-KEG, C-KES Series
・ 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.
From: ฿ 11.37 Days to Ship: 
Same day
Same day
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RecommendedYou can add up to 6 items per a category to the compare list.
Parallel Key with Center Counterbored Hole - Multiple Shapes
・ Product type: Parallel Keys with Center Counterbored Hole, C-KEDZ C-KEGZ C-KESZ series.
・ Parallel Keys with Tapped Counterbored Hole: precision components for secure alignment in mechanical assemblies. With counterbores tapped holes, they offer versatility for mounting. Perfect for precise positioning and easy installation in various applications.
・ 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.
From: ฿ 38.64 Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025MISUMI
[Features]·Both fixed dimension selection and custom dimension types are available.Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
Parallel Keys - With Counterbore
MISUMI
[Features]·A parallel key (counterbore center type). [Material]·S45C and SUS316.Days to Ship:
5 Day(s)
5 Day(s)
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You can add up to 6 items per a category to the compare list.
From: ฿ 172.90 Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
Parallel Keys - With Counterbores and Tapped Hole
MISUMI
[Features]·A parallel key (counterbore tapped type). [Material]·S45C and SUS316.Days to Ship:
5 Day(s)
5 Day(s)
-
Economy seriesYou can add up to 6 items per a category to the compare list.
Semi-Finished Parallel Key, 5-12mm W, 300mm L
・ Product type: Parallel Keys Semi-Finished, C-KET series.
・ Machine key width [mm]: 5, 6, 8, 10, 12
・ Overall length [mm]: 300
・ Machine Keys Semi-Finished Product: This versatile offering provides customers with the flexibility to process the keys according to their unique size requirements. This semi-finished product empowers users to tailor the keys precisely to their needs, ensuring a perfect fit for various applications.
・ This is an economy item; The price is cheaper than the MISUMI standard product.From: ฿ 110.39 Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Parallel Keys - With Tapped Hole
MISUMI
[Features]·A parallel key (tapped hole type). [Material]·S45C and SUS316.Days to Ship:
5 Day(s)
5 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Parallel Keys - Stainless Steel
MISUMI
[Features]·Stainless steel parallel key (blank type). [Material]·SUS316.From: ฿ 423.15 Special Price Days to Ship:
Same day
Same day
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Economy seriesYou can add up to 6 items per a category to the compare list.
Tapped Parallel Key, Straight/Round End Options
・ Product type: Parallel Keys with Tapped Hole, C-KEDM / C-KEGM / C-KESM
・ Parallel Keys with Tapped Hole: precision components for secure alignment in mechanical assemblies. With tapped holes, they offer versatility for mounting. Perfect for precise positioning and easy installation in various applications.
・ 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.From: ฿ 34.85 Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Parallel Keys - With Tapped Counterbore Hole
MISUMI
[Features]·A parallel key (tapped counterbore center type). [Material]·S45C and SUS316.Days to Ship:
5 Day(s)
5 Day(s)
-
Economy seriesYou can add up to 6 items per a category to the compare list.
Parallel Key with Counterbores and Tapped Hole - Multiple Shapes
・ Product type: Parallel Keys with Counterbores and Tapped Hole, C-KEDW / C-KEGW / C-KESW series.
・ Parallel Keys with Counterbores and Tapped Hole: precision components for secure alignment in mechanical assemblies. With counterbores and tapped holes, they offer versatility for mounting. Perfect for precise positioning and easy installation in various applications.
・ 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.From: ฿ 93.94 Days to Ship:
Same day
Same day
-
Economy seriesYou can add up to 6 items per a category to the compare list.
Parallel Key with Tapped Counterbored Hole - Multiple Shapes
・ Product type: Parallel Keys with Tapped Counterbored Hole, C-KEDY / C-KEGY / C-KESY series
・ Parallel Keys with Tapped Counterbored Hole: precision components for secure alignment in mechanical assemblies. With counterbores tapped holes, they offer versatility for mounting. Perfect for precise positioning and easy installation in various applications.
・ 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.From: ฿ 62.88 Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
![[Clean & Pack] Parallel Key](//content.misumi-ec.com/image/upload/f_auto,q_auto,t_product_view_b/v1/p/jp/product/series/110310663839/110310663839_001_20230911105917.jpg?$product_view_b$)
MISUMI
Three types of cleaning methods are available: degreasing, precision cleaning, and electrolytic polishing + precision cleaning. They can be ordered from one piece with the standard part number.
This eliminates the need for customer cleaning or outsourced cleaning, reducing the amount of time and effort required.■Part Number for Clean & Pack Products·Degreasing (Anti-rust single packing) : Part Number SL-□□ ·Precision cleaning (Degassing double packing) : Part Number SH-□□ ·Electrolytic polishing + precision cleaning (Degassing double packing) : Part Number SHD-□□ Product Part Number Cleaning Method Packaging Type Effects Compared to Uncleaned Product Environment (Standard) Process SL-□□ Degreasing Anti-rust packing Oil removal General environment Regular assembly process Post battery assembly process SH-□□ Precision cleaning Degassing double packing Oil removal
Dust removalClean environment (Class 10 to 1,000) Battery assembly process LCD-related post assembly process In-vehicle camera assembly process SHD-□□ Electrolytic polishing + precision cleaning Degassing double packing Oil removal
Dust removal
Outgas reductionVacuum environment
Clean environment (Class 10 to 1,000)Pre-semiconductor process Liquid crystal deposition process Pre-OLED process ■Notes
Cleaning also removes rust prevention oil, which may make the product more susceptible to rusting than an uncleaned product.
Please be careful about the application location and storage environment.Days to Ship:
7 Day(s)
7 Day(s)
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You can add up to 6 items per a category to the compare list.
![[Clean & Pack]Parallel Keys - Blank Type, Stainless Steel](//content.misumi-ec.com/image/upload/f_auto,q_auto,t_product_view_b/v1/p/jp/product/series/110310769679/110310769679_001_20230911105917.jpg?$product_view_b$)
[Clean & Pack]Parallel Keys - Blank Type, Stainless Steel
MISUMI
Three types of cleaning methods are available: degreasing, precision cleaning, and electrolytic polishing + precision cleaning. They can be ordered from one piece with the standard part number.
This eliminates the need for customer cleaning or outsourced cleaning, reducing the amount of time and effort required.■Part Number for Clean & Pack Products·Degreasing (Anti-rust single packing) : Part Number SL-□□ ·Precision cleaning (Degassing double packing) : Part Number SH-□□ ·Electrolytic polishing + precision cleaning (Degassing double packing) : Part Number SHD-□□ Product Part Number Cleaning Method Packaging Type Effects Compared to Uncleaned Product Environment (Standard) Process SL-□□ Degreasing Anti-rust packing Oil removal General environment Regular assembly process Post battery assembly process SH-□□ Precision cleaning Degassing double packing Oil removal
Dust removalClean environment (Class 10 to 1,000) Battery assembly process LCD-related post assembly process In-vehicle camera assembly process SHD-□□ Electrolytic polishing + precision cleaning Degassing double packing Oil removal
Dust removal
Outgas reductionVacuum environment
Clean environment (Class 10 to 1,000)Pre-semiconductor process Liquid crystal deposition process Pre-OLED process ■Notes
Cleaning also removes rust prevention oil, which may make the product more susceptible to rusting than an uncleaned product.
Please be careful about the application location and storage environment.
[Features]·Parallel key (blank type) made of stainless steel. [Material]·SUS316.From: ฿ 522.49 Days to Ship:
7 Day(s)
7 Day(s)
![[Clean & Pack] Parallel Key](http://content.misumi-ec.com/image/upload/f_auto,q_auto,t_product_view_b/v1/p/jp/product/series/110310663839/110310663839_001_20230911105917.jpg?$product_view_b$)
![[Clean & Pack]Parallel Keys - Blank Type, Stainless Steel](http://content.misumi-ec.com/image/upload/f_auto,q_auto,t_product_view_b/v1/p/jp/product/series/110310769679/110310769679_001_20230911105917.jpg?$product_view_b$)
| Brand |
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| Days to Ship |
| Specifications |
| Shape |
| Environmentally friendly |
| Width(mm) |
| Characteristics/Applications |
| Overall Length(mm) |
| Material |
| Hole Machining |
| Cleaning Method |
You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025   | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list. ![[Clean & Pack] Parallel Key](http://content.misumi-ec.com/image/upload/f_auto,q_auto,t_product_view_c/v1/p/jp/product/series/110310663839/110310663839_001_20230911105917.jpg?$product_view_c$) | You can add up to 6 items per a category to the compare list. ![[Clean & Pack]Parallel Keys - Blank Type, Stainless Steel](http://content.misumi-ec.com/image/upload/f_auto,q_auto,t_product_view_c/v1/p/jp/product/series/110310769679/110310769679_001_20230911105917.jpg?$product_view_c$) | |
| Brand | MISUMI | MISUMI | MISUMI | MISUMI | MISUMI | MISUMI | MISUMI | MISUMI | MISUMI | ||||||
| Product Series | Parallel Keys Straight/Round at One End/Round at Both Ends - C-KED, C-KEG, C-KES Series | Parallel Key with Center Counterbored Hole - Multiple Shapes | Parallel Key with Counterbores and Tapped Hole - Multiple Shapes | Parallel Key with Tapped Counterbored Hole - Multiple Shapes | |||||||||||
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| From | ฿ 11.37 | ฿ 38.64 | ฿ 172.90 | ฿ 110.39 | ฿ 423.15 Special Price On Sale Until 31/03/2025 | ฿ 34.85 | ฿ 93.94 | ฿ 62.88 | ฿ 522.49 | ||||||
| Days to Ship | Same day | Same day | Same day | 5 Day(s) | Same day | 5 Day(s) | Same day | 5 Day(s) | Same day | Same day | 5 Day(s) | Same day | Same day | 7 Day(s) | 7 Day(s) |
| Specifications | |||||||||||||||
| Shape | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) | Parallel Keys (Straight) |
| Environmentally friendly | - | - | - | - | - | - | - | - | - | - | - | - | - | RoHS Compliant (10 Substances) | RoHS Compliant (10 Substances) |
| Width(mm) | 2 ～ 6 | 8 | 2 ～ 32 | 8 ～ 18 | 3 ～ 18 | 8 ～ 18 | 5 ～ 12 | 5 ～ 18 | 2 ～ 14 | 5 | 8 ～ 18 | 8 | 12 | 2 ～ 18 | 2 ～ 14 |
| Characteristics/Applications | - | - | - | - | - | - | - | - | - | - | - | - | - | Clean Washed | Clean Washed |
| Overall Length(mm) | 8 ～ 20 | 20 | 5 ～ 300 | 15 ～ 110 | 300 | 35 ～ 110 | 300 | 10 ～ 110 | 350 | 20 | 15 ～ 110 | 70 | 25 | 6 ～ 110 | 350 |
| Material | Steel | Steel | Steel / Stainless Steel | Steel / Stainless Steel | Steel | Steel / Stainless Steel | Steel | Steel / Stainless Steel | Stainless Steel | Steel | Steel / Stainless Steel | Steel | Steel | Stainless Steel | Stainless Steel |
| Hole Machining | Straight | Counterbored Hole | Straight | Counterbored Hole | Straight | Center Tapped + Counterbored | Straight | Center Tapped | Straight | Center Tapped | Counterbored + Tapped | Counterbored + Tapped | Counterbored + Tapped | Straight | Straight |
| Cleaning Method | - | - | - | - | - | - | - | - | - | - | - | - | - | Degreasing / Precision Cleaning / Electrolytic Polishing + Precision Cleaning | Degreasing / Precision Cleaning / Electrolytic Polishing + Precision Cleaning |
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Related Categories to Machine Keys
FAQ Machine Keys
- Question: What are machine keys and their primary functions?
- Answer: Machine keys, also known as shaft keys, are mechanical components used to connect rotating machine elements such as gears, pulleys, and couplings to a shaft. Their primary function is to transmit torque from the shaft to the connected element and ensure synchronous rotation. They also provide a fail-safe mechanism to protect the machinery by shearing off during overload conditions, thus preventing damage to other components.
- Question: What types of machine keys are available?
- Answer: There are several types of machine keys, each suited for different applications:
1. Parallel Keys: Rectangular keys with either square or rounded ends. They are the most common type and used for general purposes.
2. Woodruff Keys: Semi-circular keys with a flat or radius bottom, used mainly for small-diameter shafts and applications requiring a tighter fit.
3. Taper Keys: Tapered keys that provide a locking effect by wedging into the keyway.
4. Gib Head Keys: Tapered keys with a head for easier removal and adjustment. - Question: How do I choose the right machine key for my application?
- Answer: To choose the correct machine key, consider the following factors:
1. Shaft and Keyway Size: Ensure the key fits snugly into the keyway of both the shaft and the rotating element.
2. Material: Common materials include carbon steel (S45C) and stainless steel (SS304). Choose the material based on the environment and load conditions.
3. Type of Key: Depending on the specific requirements of your application (e.g., load type, frequency of removal, and adjustment), select the appropriate key type.
4. Standards Compliance: Ensure the key conforms to relevant standards (e.g., DIN, JIS). - Question: What materials are machine keys typically made from?
- Answer: Machine keys are usually made from durable materials such as S45C carbon steel and SS304 stainless steel. These materials offer good wear resistance and strength, suitable for various mechanical applications. In some cases, keys may also be made from brass or silicon bronze for specific requirements.
- Question: How are machine keys installed?
- Answer: Machine keys are installed by fitting them into the keyway of a shaft and the corresponding keyway of the rotating element. For precise installation:
1. Clean the Keyway: Ensure the keyway is clean and free from debris.
2. Fit the Key: Insert the key into the shaft’s keyway.
3. Align the Element: Slide the rotating element (gear, pulley, etc.) onto the shaft, aligning its keyway with the key.
4. Secure the Assembly: Tighten any set screws or locking mechanisms to secure the assembly. - Question: What are the common sizes and dimensions of machine keys?
- Answer: Machine keys come in various sizes and dimensions to fit different shaft diameters and keyway sizes. They are typically specified by width, height, and length. For example:
• Widths range from 2mm to 50mm or more.
• Lengths range from 5mm to over 300mm.
• Heights correspond to the width to ensure a proper fit in standard keyways. - Question: Can machine keys be custom-made?
- Answer: Yes, machine keys can be custom-made to specific dimensions and requirements. Manufacturers can produce custom keys based on the specifications provided, including material, size, and any special features like counterbores or tapped holes.
- Question: What are Woodruff keys, and where are they used?
- Answer: Woodruff keys are semi-circular keys used in applications requiring a tight fit and resistance to rotational movement. They are commonly used in automotive and small machinery applications where precise alignment is crucial.
- Question: Are there specific standards for machine keys?
- Answer: Yes, machine keys are manufactured to conform to various international standards, such as:
• DIN 6885: German standard for parallel keys.
• JIS B1301: Japanese standard for machine keys.
• ANSI: American standards for key sizes and dimensions.
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