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THK Support Units（Mounting Method：Side Mount）
THK offers products Support Units specified by Mounting Method Side Mount from Automation Components product category. There are a total of 2 items. Search and select detailed specifications of parts for your machine with free CAD downloads. THK products are available to order through MISUMI online 24 hours a day. Free shipping, no minimum order.
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Specification/Dimensions
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Shape
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Square -
Round -
Round, 2 Set Screw Flats at both ends
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Shaft Dia. d(Ø)
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Mounting Method
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Bearing Type
- Angular Contact Bearing
- Radial Bearing, Single
- Radial Bearing, Double
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Shaft Height H(mm)
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Bearing Grade
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Surface Treatment
- Black Oxide
- Electroless Nickel Plating
- Low Temperature Black Chrome Plating
- Not Provided
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Thickness B(mm)
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Width W(mm)
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Support Material
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Outer Dia. D(Ø)
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Until 31/03/2025
Until 31/03/2025Support Unit Fixed Side Circular Type FK Type
THK
Have been embedded with bearings with pre-adjusted loads, allowing assembly to be performed as-is.
[Features]
· The fixed side support unit incorporates a preload-adjusted JIS class 5 angular bearing.
· In particular, the FK4, 5 and 6 types incorporate miniature angular bearings with a contact angle of 45° developed specifically for miniature ball screws, ensuring stable rotation performance with high rigidity and high-accuracy.
· A moderate amount of lithium-soap-based grease has been inserted into the internal bearings of the FK support unit and then sealed with a special seal, enabling use over a long period.
· In order to ensure a rigidity balance with the ball screw, high rigidity and low torque angular bearings are used.
· Furthermore, the FK4, 5 and 6 miniature support units incorporate miniature angular bearings that were dedicated for use with miniature ball screws.
· The bearings are high-rigidity and high-accuracy miniature angular bearings with a 45° contact angle. They use a large number of balls, each of which have a small ball diameter, helping provide stable rotational performance.
· Rectangular and round shaped support units are available for use in different types of application.
· A compact structure designed not to take up too much space when being mounted.
· Incorporates bearings for which the load has been pre-adjusted, allowing assembly to be performed as-is, thereby reducing the amount of work required for assembly and helping improve assembly accuracy.From: ฿ 2,840.00 Special Price 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 31/03/2025Support Unit, Support Side, Circular Type, FF Type
THK
A support-side support unit with a compact structure that considers the space around the mounting area.
[Features]
· Support unit of the support side uses a deep-groove ball bearing.
· Uses high rigidity and low torque angular bearing (contact angle 30, DF combination), considering the rigidity balance with ball screw.
· The bearings are high-rigidity and high-accuracy miniature angular bearings with a 45° contact angle. They use a large number of balls, each of which have a small ball diameter, helping provide stable rotational performance.
· Rectangular and round shaped support units are available for use in different types of application.
· A compact structure designed not to take up too much space when being mounted.
· Incorporates bearings for which the load has been pre-adjusted, allowing assembly to be performed as-is, thereby reducing the amount of work required for assembly and helping improve assembly accuracy.From: ฿ 855.00 Special Price Days to Ship:
Same day
Same day
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| Product Series |
| CAD |
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| Days to Ship |
| Type |
| Shape |
| Shaft Dia. d(Ø) |
| Mounting Method |
| Bearing Type |
| Shaft Height H(mm) |
| Bearing Grade |
| Surface Treatment |
| Thickness B(mm) |
| Width W(mm) |
| Support Material |
| Outer Dia. D(Ø) |
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.  Until 31/03/2025    | |
| Brand | THK | THK |
| Product Series | ||
| CAD |
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| From | ฿ 2,840.00 Special Price On Sale Until 31/03/2025 | ฿ 855.00 Special Price On Sale Until 31/03/2025 |
| Days to Ship | Same day | Same day |
| Type | Fixed Side | Support Side |
| Shape | Round | Round |
| Shaft Dia. d(Ø) | 5 ～ 30 | 6 ～ 30 |
| Mounting Method | Side Mount | Side Mount |
| Bearing Type | Angular Contact Bearing | Radial Bearing, Single |
| Shaft Height H(mm) | - | - |
| Bearing Grade | Grade 5 | - |
| Surface Treatment | Not Provided | Not Provided |
| Thickness B(mm) | 10.5 ～ 32 | 4 ～ 10 |
| Width W(mm) | 26 ～ 93 | 28 ～ 93 |
| Support Material | Steel | Steel |
| Outer Dia. D(Ø) | 34 ～ 117 | - |
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Application example related to this category
Related Categories to Support Units
FAQ Support Units
- Question: What are support units for ball screws?
- Answer: Support units are essential components designed to provide support and stability for ball screws in various applications. They ensure the precise positioning and smooth operation of the screw shaft by using integrated bearings. These units are crucial for maintaining the alignment and reducing the load on the screw shaft, which enhances the overall performance and longevity of the system.
- Question: What types of support units are available?
- Answer: Support units come in different shapes and configurations to suit various applications. The main types include:
Fixed Side Support Units (Models BK, EK, FK): These units are typically used on the motor side and include angular contact bearings with pre-adjusted preload for high rigidity and accuracy.
Support Side Support Units (Models BF, EF, FF): These units use deep-groove ball bearings and are designed to support the opposite end of the ball screw from the motor. - Question: How do I choose the right support unit for my application?
- Answer: When selecting a support unit, consider the following factors:
Load Requirements: Determine the axial and radial loads the unit will need to handle. High-load applications typically require units with angular contact bearings.
Speed Requirements: For high-speed applications, choose units designed for high rotational speeds.
Space Constraints: Select the shape and size (square or round) that best fits the available installation space.
Accuracy Needs: Ensure the support unit's precision matches the requirements of your application, especially for high-precision tasks. - Question: What are the benefits of using angular contact bearings in support units?
- Answer: Angular contact bearings are designed to handle both radial and axial loads with high rigidity and low torque. They are ideal for applications requiring high precision and stability, such as in CNC machinery and robotics. These bearings help maintain the alignment and smooth operation of the ball screw, reducing wear and increasing the system's lifespan.
- Question: Can support units be used in high-speed applications?
- Answer: Yes, certain support units are specifically designed for high-speed applications. For instance, the FK series incorporates bearings that can handle high rotational speeds and maintain stability. It is crucial to select support units that specify high-speed capabilities to ensure optimal performance.
- Question: How do I install a support unit correctly?
- Answer: Installation involves securing the support unit to the machine frame and ensuring the ball screw is properly aligned. Follow these steps:
Mounting: Attach the support unit using appropriate fasteners and ensure it is securely fixed to the frame.
Alignment: Align the ball screw with the support unit's bearing to avoid misalignment and uneven load distribution.
Preload Adjustment: For units with pre-adjusted preload bearings, no additional adjustment is necessary. Ensure the preload is correct to maintain system accuracy and rigidity. - Question: What maintenance is required for support units?
- Answer: Support units generally require minimal maintenance. However, periodic checks and maintenance can help extend their lifespan:
Lubrication: Ensure the bearings are properly lubricated. Some units come pre-lubricated and sealed for long-term use.
Inspection: Regularly inspect for signs of wear, such as noise, vibration, or increased play in the bearings.
Cleaning: Keep the units clean and free from debris that can affect performance. - Question: What are common applications for support units?
- Answer: Support units are used in a wide range of applications, including:
CNC Machinery: Provides precision and stability for machining operations.
Robotics: Ensures accurate and smooth movement in robotic arms and systems.
Medical Equipment: Used in devices requiring high precision and reliability.
Industrial Automation: Supports various automated systems where precise motion control is necessary.
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