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Support Units（Shape：Round）
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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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Economy seriesYou can add up to 6 items per a category to the compare list.
Support Units for Ball Screw, Fixed Side Round Type
・ Product type: Support Units for Ball Screw, Fixed Side Round Type, C-TFK series.
・ This is an economy item; The price is cheaper than the MISUMI standard product.
・ Applicable shaft outer diameter [mm]: 6, 8, 10, 12, 15, 20, 25
・ Material: Made of S45C with Ferroferric oxide protective film (Black Oxide)
・ Support Units for C7 to C10 rolled screw balls without pre-pressure. This product connects the fixed side (motor side) of the ball screw, featuring a composition of bearing holder, bearing, bearing cap, oil seal, hex socket bolt, collar, and fastening nut (with Lock screws).From: ฿ 712.13 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 31/03/2025Round Support Unit Fixed Side Standard Type Angular Bearing JIS Class 5
MISUMI
Points to compare with similar products: If you are using this product with high loads and high frequency drive, please consider this product.From: ฿ 2,302.03 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.
Support Units for Ball Screw, Support Side Round Type
・ Product type: Support Units for Ball Screw, Support Side Round Type, C-TFF series.
・ This is an economy item; The price is cheaper than the MISUMI standard product.
・ Applicable shaft outer diameter [mm]: 6, 8, 10, 15, 20, 25
・ Material: Made of S45C with Ferroferric oxide protective film (Black Oxide)
・ Special Support Units for C7 to C10 rolled screw balls without pre-pressure. This product connects the support side (no motor connected) of the ball screw, featuring bearing holders, bearings, and buckles for sturdy support.From: ฿ 221.22 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 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 31/03/2025Light-Load Support Unit for Small Devices, Fixing-Side Support Unit (Circular Type)
NSK
The high-rigidity angular ball bearing is adjusted to the optimal preload on the fixed side and assembled with the optimal amount of grease sealed withinFrom: ฿ 4,408.10 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 Units-Support Side/Round (Standard)
MISUMI
You can now purchase the fixed side and supporting side as a set. 5% price reduction when ordering the SET model!From: ฿ 635.00 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.
FK Series Support Unit, Supported Side
HIWIN
The FK series (fixed side, round) mainly consists of a main body, bearings, covers, spacers, oil seals, lock nuts, and hex socket head cap screws. Compact in size, easy to install, and can be used in narrow spaces.
[Features]
·Combined with angular contact ball bearings with high precision and high stiffness.
·All surfaces are treated with rust prevention.
·Compact design, easy to install. It can also be used in narrow spaces.
·It can be installed on the equipment immediately without any other processing.
·Various models and dimensions are available.
[Applications]
Industrial automatic control equipment, machine tools, testing equipment, medical equipment, etc.From: ฿ 2,902.63 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 Units-Fixed Side/Round
MISUMI
Compared Point with Similar Products: The C-VALUE products are different from their similar products in load rating. When selecting new products, please compare the specifications between C-VALUE products and their similar products.From: ฿ 1,611.42 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.
Support Units-Fixed Side/Round/Economy
MISUMI
We use JIS 0 class angular bearings with preload adjustment.From: ฿ 1,749.66 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 Units-Support Side/Round/Retaining Ring
MISUMI
[Features]·It can be used for the purpose of fall prevention of bearings. ·Round type.From: ฿ 702.00 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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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025MISUMI
[Features]Preload-adjusted radial bearings are used.From: ฿ 1,398.31 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
From: ฿ 444.50 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.
From: ฿ 1,500.93 Days to Ship:
3 Day(s)
3 Day(s)
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025NSK
A dedicated lock nut for mounting ball screw support shafts with a small incline for light loadsFrom: ฿ 331.71 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.
Support Unit / Round Type, Fixed Side Round FSGK Type-
SUNGIL
A fixed side circular support unit. This product is made from S45C and black oxide coating materials. SUNGIL Inc. is a Korean manufacturer established in 1991. This company has a 70% share of the Japanese coupling market and is the no. 1 manufacturer with 3,000 corporate customers. A wide range of types are available.From: ฿ 1,500.93 Days to Ship:
3 Day(s)
3 Day(s)
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You can add up to 6 items per a category to the compare list.
Lock Nut for High Speed / Heavy Weight
NSK
A lock nut that is dedicated for mounting ball screw support shafts with a small incline for high speed / heavy loadsFrom: ฿ 1,853.15 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.
From: ฿ 784.62 Days to Ship:
3 Day(s)
3 Day(s)
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You can add up to 6 items per a category to the compare list.
Support Unit - Round Type, Fixed Side, Round - EF Type -
SUNGIL
Brand-name products provided by MISUMI are carefully-selected from the products of Asian manufacturers and offered based on customers' needs. Please select the right item for your individual usage environment. A Korean manufacturer established in 1991. This company has 70% of the Japanese coupling market share, and is the No1 manufacturer with 3,000 customers.From: ฿ 784.62 Days to Ship:
3 Day(s)
3 Day(s)
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| Days to Ship |
| Specifications |
| 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.    | 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.  Until 31/03/2025    | 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 | 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.  Until 31/03/2025 | 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    | 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.  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.  | |
| Brand | MISUMI | THK | NSK | MISUMI | HIWIN | MISUMI | MISUMI | MISUMI | THK | MISUMI | MISUMI | SUNGIL | NSK | SUNGIL | NSK | SUNGIL | SUNGIL | ||
| Product Series | Round Support Unit Fixed Side Standard Type Angular Bearing JIS Class 5 | Light-Load Support Unit for Small Devices, Fixing-Side Support Unit (Circular Type) | |||||||||||||||||
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| From | ฿ 712.13 | ฿ 2,302.03 Special Price On Sale Until 31/03/2025 | ฿ 221.22 | ฿ 2,840.00 Special Price On Sale Until 31/03/2025 | ฿ 4,408.10 Special Price On Sale Until 31/03/2025 | ฿ 635.00 Special Price On Sale Until 31/03/2025 | ฿ 2,902.63 | ฿ 1,611.42 Special Price On Sale Until 31/03/2025 | ฿ 1,749.66 | ฿ 702.00 Special Price On Sale Until 31/03/2025 | ฿ 855.00 Special Price On Sale Until 31/03/2025 | ฿ 1,398.31 Special Price On Sale Until 31/03/2025 | ฿ 444.50 Special Price On Sale Until 31/03/2025 | ฿ 1,500.93 | ฿ 331.71 Special Price On Sale Until 31/03/2025 | ฿ 1,500.93 | ฿ 1,853.15 | ฿ 784.62 | ฿ 784.62 |
| Days to Ship | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | Same day | 3 Day(s) | Same day | 3 Day(s) | Same day | 3 Day(s) | 3 Day(s) |
| Specifications | |||||||||||||||||||
| Type | Fixed Side | Fixed Side | Support Side | Fixed Side | Fixed Side | Support Side | Fixed Side | Fixed Side | Fixed Side | Support Side | Support Side | Fixed Side | Support Side | Fixed Side | Related Components | Fixed Side | Related Components | Support Side | Support Side |
| Shape | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round | Round |
| Shaft Dia. d(Ø) | 6 ～ 25 | 6 ～ 25 | 6 ～ 25 | 5 ～ 30 | 6 ～ 25 | 6 ～ 25 | 8 ～ 20 | 6 ～ 25 | 10 ～ 25 | 6 ～ 20 | 6 ～ 30 | 6 ～ 20 | 6 ～ 25 | 4 ～ 30 | M6 ～ M25 | 4 ～ 30 | M20 | 6 ～ 30 | 6 ～ 30 |
| Mounting Method | - | Side Mount | - | Side Mount | Side Mount | Side Mount | Side Mount | Side Mount | Side Mount | Side Mount | Side Mount | Side Mount | Face Mounting | Side Mount | Side Mount | Side Mount | Side Mount | Side Mount | Side Mount |
| Bearing Type | - | Angular Contact Bearing | - | Angular Contact Bearing | Angular Contact Bearing | Radial Bearing, Single | Angular Contact Bearing | Angular Contact Bearing | Angular Contact Bearing | Radial Bearing, Single | Radial Bearing, Single | Radial Bearing, Single | - | Angular Contact Bearing / Radial Bearing, Double | - | Angular Contact Bearing / Radial Bearing, Double | - | Radial Bearing, Single | Radial Bearing, Single |
| Shaft Height H(mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Bearing Grade | - | Grade 5 | - | Grade 5 | Grade 4 | - | Grade 5 | Grade 5 | Grade 0 | - | - | - | - | P0-C7 ～ C8 | - | P0-C7 ～ C8 | - | - | - |
| Surface Treatment | Black Oxide | Black Oxide / Electroless Nickel Plating / Low Temperature Black Chrome Plating | Black Oxide | Not Provided | Black Oxide / Low Temperature Black Chrome Plating | Black Oxide / Electroless Nickel Plating / Low Temperature Black Chrome Plating | Black Oxide | Black Oxide | Black Oxide / Electroless Nickel Plating / Low Temperature Black Chrome Plating | Black Oxide / Electroless Nickel Plating | Not Provided | Black Oxide / Electroless Nickel Plating | Black Oxide | Black Oxide | Black Oxide | Black Oxide | Black Oxide | Black Oxide | Black Oxide |
| Thickness B(mm) | - | 13 ～ 30 | - | 10.5 ～ 32 | 20 ～ 57 | 4 ～ 10 | 14 ～ 30 | 13 ～ 30 | 16 ～ 30 | 4 ～ 9 | 4 ～ 10 | 13 ～ 30 | 4 ～ 10 | 9 ～ 32 | 5 ～ 16 | 9 ～ 32 | 18 | 4 ～ 10 | 4 ～ 10 |
| Width W(mm) | - | 28 ～ 79 | - | 26 ～ 93 | 28 ～ 79 | 28 ～ 79 | 35 ～ 68 | 28 ～ 79 | 42 ～ 79 | 28 ～ 68 | 28 ～ 93 | 28 ～ 68 | 28 ～ 79 | 25 ～ 93 | 12 ～ 36 | 25 ～ 93 | 36 | 28 ～ 93 | 28 ～ 93 |
| Support Material | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel |
| Outer Dia. D(Ø) | - | 35 ～ 98 | - | 34 ～ 117 | 35 ～ 98 | 36 ～ 98 | 43 ～ 85 | 35 ～ 98 | 52 ～ 98 | 36 ～ 85 | - | 35 ～ 85 | 36 ～ 98 | 32 ～ 117 | 14.5 ～ 42 | 32 ～ 117 | 40 | 36 ～ 117 | 36 ～ 117 |
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Application example related to this category
Related Categories to Support Units
-
- Linear Shafts
- Shaft Supports
- Shaft Collars
- Linear Bushings
- Ball Guides
- Spline Shaft
- Oil Free Bushings, Washers
- Oil Free Plates, Guide Rails
- Linear Guides
- Cable Carriers
- Ball Screw
- Support Units
- Lead Screws, Slide Screws
- Cross Roller
- Slide Packs, V Guides, Linear Rails
- Actuators
- Other Linear Motion Related Components
- Bellows
-
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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