What are the benefits of using a ball screw over a lead screw?

Ball screws offer higher efficiency, precision, and speed compared to lead screws. Ball screw have lower friction and can transfer higher loads with greater accuracy and repeatability. They require less power to operate and have longer lifespans.

How do you choose the right ball screw for your application?

To choose the right ball screw, you need to consider factors such as load capacity, speed, accuracy, and repeatability. You should also consider environmental conditions like temperature and humidity. It is recommended to consult with a ball screw supplier or engineer to ensure that the ball screw meets your application requirements.

How do you determine the load capacity of a ball screw?

The load capacity of a ball screw depends on factors such as screw diameter, lead, and the number of ball circuits. You can calculate the load capacity using manufacturer-provided formulas or consult with a ball screw supplier or engineer to determine the load capacity for your specific application.

How do you lubricate a ball screw?

Ball screws require lubrication to reduce friction and wear. The appropriate lubricant and lubrication method depends on the specific application and the type of ball screw. It is recommended to consult with the ball screw manufacturer or supplier to ensure that the right lubricant and lubrication method is used.

What are the maintenance requirements for ball screws?

Maintenance requirements for ball screws include regular inspection for signs of wear or damage, cleaning, and lubrication. It is essential to follow the manufacturer's recommendations and guidelines for maintenance to ensure the proper functioning and longevity of the ball screw.

How many types of ball screws are there, and what are their differences?

There are several types of ball screws, including ground ball screws, rolled ball screws, miniature ball screws, and large-diameter ball screws. The main differences between these types of ball screws are in their manufacturing methods, accuracy, load capacity, and application suitability. Consult with a ball screw supplier or engineer to determine the right type of ball screw for your specific application.

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THK Ball Screw（Flange Shape：Round Shape, 2 Set Screw Flats at both ends）

THK offers products Ball Screw specified by Flange Shape Round Shape, 2 Set Screw Flats at both ends from Automation Components product category. There are a total of 13 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

Screw Shaft O.D. d(Ø)
4

6

8

10

12

14

15

15(16)

16

18

20

25

28

32

36

40

45
Drawing

Clear

Product Type
- Precision Ball Screw
- Rolled Ball Screw
- Ball Screw Related Products
Larger Image

Clear

Lead(mm)
1

2

4

5

6

8

10

12

15

16

20

24

25

30

32

36

40

50

60
Clear

Accuracy Grade
- C3
- C5
- C7
- C10
See the accuracy standard of each manufacturer.

Clear

Flange Shape
- Square Shape
- Round Shape
- Round Shape, 2 Set Screw Flats at both ends
- Block
- Miniature
Larger Image

Clear

Axial End Type
- Standard Shaft End Alterations Item
Clear

Brand	(45) (13) MORIMOTO SHAFT (2) NSK (2) THK (13)
CAD	2D 3D

13 items

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: 30; 60; 90

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Rolled Ball Screw, No Preloading Type (Single Nut) BTK

THK

[Features]
· Return pipe is a compact outer diameter round pipe that is recessed in a ball screw nut. Flange is flat mounted in 2 places and so the core height can be reduced.

From: ฿ 3,379.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Rolled Ball Screw, Non-Preloading Type (Nut Single Unit) BLK

THK

- Rolled Ball Screw, Non-Preloading Type (Nut Single Unit) BLK series from THK.
- Nuts of Rolled Ball Screws applicable for 6 sizes of shaft diameter: 15mm, 16mm, 20mm, 25mm, 32mm and 36mm and are available in five different lead sizes: 10mm, 16, 20, 25 or 32mm.
- The lead twisting direction for this product is right-handed.
- The overall length of the nut will increase when equipping the QZ lubricating device.
- Using an end-cap method, these models achieve stable motion in a high-speed rotation.

From: ฿ 8,701.32
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Rolled Ball Screw, No Preloading Type (Nut Single Unit) WTF

THK

[Features]
· THK rolling ball screws are low-priced feed screws combined with a threaded shaft that has been subjected to high-accuracy rolling and a special surface-polish finish rather than the thread grinding shaft used with precision ball screws.
· Because all of the ball raceways on the combined ball screw nuts have a thread ground finish, the gap in the shaft direction is smaller, and the operation is smoother, than conventional rolled ball screws.
· Also, an abundant standardized lineup is available so that you can select the product that is best suited for the given application.
· For the threaded shafts, displacement tolerance is also standardized for the C7 and C8 classes other than C10 class, so they can be used for a wide variety of applications.
· After rolling is completed, the ball rolling surface of the screw shaft undergoes a special surface polishing process that polishes the surface to get a roughness of 0.20 a or less, similar to the roughness of a precision ball screw made by grinding.
· The rolled ball screw nuts of THK are durable and smooth as they are subjected to grinding and finishing of the ball rolling surface, just like precision ball screws.
· After rolling, the screw shaft is treated with either high frequency or charcoal immersion quenching, after which it is subjected to special surface grinding and finishing. These manufacturing processes ensure a lower cost of the product compared to the precision ball screws made by grinding.
· These ball screw nuts that have a built-in compact labyrinth seal or brush seal achieve low-friction and high level dust-proofing, making the ball screws' lifespan longer.
· Uses an end cap system that provides stable operation at high-speed rotations.

From: ฿ 12,923.69
Days to Ship: 22 Day(s)

22 Day(s)

Compare

Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 8, Lead: 1

THK

Because the shaft ends are complete, no drawing and machining are necessary and the product can be used as-is.
[Features]
· The product with finished shaft ends is a standardized ball screw unit with a space-saving screw shaft and ball screw nut.
· The screw shaft is standardized with the shaft ends to fit the support unit. The mount type is fixed-supported, and forms a direct structure with the motor.
· The screw shaft and ball screw nut shape feature a compact design. The parts can be assembled in the same shape when used with a support unit or nut bracket, creating a simple and high-accuracy feed mechanism.
[Dust-Proofing and Lubrication]
· An appropriate amount of grease is enclosed in ball screw nuts.
· In addition, for cases where contaminants are a concern, dust-proof equipment (bellows, etc.) must always be used to completely cover the screw shafts.
· A ball screw standardized with screw shaft diameter ø4 to 25 mm and lead 1 to 20 mm.

From: ฿ 10,424.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 10, Lead: 2

THK

Because the shaft ends are complete, no drawing and machining are necessary and the product can be used as-is.
[Features]
· The product with finished shaft ends is a standardized ball screw unit with a space-saving screw shaft and ball screw nut.
· The screw shaft is standardized with the shaft ends to fit the support unit. The mount type is fixed-supported, and forms a direct structure with the motor.
· The screw shaft and ball screw nut shape feature a compact design. The parts can be assembled in the same shape when used with a support unit or nut bracket, creating a simple and high-accuracy feed mechanism.
· An appropriate amount of grease is enclosed in ball screw nuts.
· In addition, for cases where contaminants are a concern, dust-proof equipment (bellows, etc.) must always be used to completely cover the screw shafts.
· A ball screw standardized with screw shaft diameter ø4 to 25 mm and lead 1 to 20 mm.

From: ฿ 9,872.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Precision Ball Screw With No Machining on Shaft Ends, MBF Model (No Preload Type)

THK

[Features]
· This shaft end unmachined products are mass-produced in a series of standard sizes with standardized screw shaft in the precision ball screw.
· Screw shaft ends can be altered.
· Also, a variety of nut shapes such as the double nut BNFN type, single nut BNF type, offset preload nut BIF type, miniature ball screw MDK type and MBF type are available to choose from depending on the application.
· Thread shaft diameter 4 to 14 mm, lead 1 to 5 mm miniature type.

From: ฿ 9,159.00
Days to Ship: 22 Day(s)

22 Day(s)

Compare

Precision Ball Screw, Shaft End finished product (BNK Shape), Shaft Diameter 12, Lead 2

THK

Because the shaft tips are complete, no drawing and machinery are necessary and the product can be used as is.

[Features]
· The machined screw shaft tip product is standardized ball screw unit with a space saving screw shaft and ball screw nut.
· The screw shaft is standardized with a support unit for the screw tip terminal. When using a BNK0401/0501/0601 mount shape, screws not set as fixed - free are considered fixed - support, and form a direct structure with the motor.
· The screw shaft and ball screw nut shape feature a compact design. In addition, these parts can be assembled in the same shape when used with a support unit or nut bracket, creating a simple and high accuracy feed mechanism.

From: ฿ 10,038.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 6, Lead: 1

THK

Because the shaft ends are finished, no drawing and machining are necessary and the product can be used as-is.
[Features]
· The product with finished shaft ends is a standardized ball screw unit with a space-saving screw shaft and ball screw nut.
· The screw shaft is standardized with the shaft ends to fit the support unit. The mount type is fixed-supported, and forms a direct structure with the motor.
· The screw shaft and ball screw nut shape feature a compact design. The parts can be assembled in the same shape when used with a support unit or nut bracket, creating a simple and high-accuracy feed mechanism.
· An appropriate amount of grease is enclosed in ball screw nuts.
· In addition, for cases where contaminants are a concern, dust-proof equipment (bellows, etc.) must always be used to completely cover the screw shafts.
· A ball screw standardized with screw shaft diameter ø4 to 25 mm and lead 1 to 20 mm.

From: ฿ 16,380.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 8, Lead: 10

THK

Because the shaft ends are complete, no drawing and machining are necessary and the product can be used as-is.

[Features]
· The rotary ball screw is a unit with an integrated structure made up of a ball screw nut and a support bearing.
· The support bearing is a large angular bearing with a contact angle of 60° that provides rigidity in the axial direction where more balls are placed.
· The BLR type is available in precision ball screw and rolling ball screw specifications.
· Smooth operation: Provides smooth operation in comparison to the straight line movement of rack and pinion systems.
· Also, because the screw shaft does not rotate with ball screw nut drive, there is no jumping rope phenomenon, operation is quiet, and heat produced by the unit is reduced

From: ฿ 12,988.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 4, Lead: 1

THK

Because the shaft ends are complete, no drawing and machining are necessary and the product can be used as-is.
[Features]
· The product with finished shaft ends is a standardized ball screw unit with a space-saving screw shaft and ball screw nut.
· The screw shaft is standardized with the shaft ends to fit the support unit. The mount type is fixed-supported, and forms a direct structure with the motor.
· The screw shaft and ball screw nut shape feature a compact design. The parts can be assembled in the same shape when used with a support unit or nut bracket, creating a simple and high-accuracy feed mechanism.
· An appropriate amount of grease is enclosed in ball screw nuts.
· In addition, for cases where contaminants are a concern, dust-proof equipment (bellows, etc.) must always be used to completely cover the screw shafts.
· A ball screw standardized with screw shaft diameter ø4 to 25 mm and lead 1 to 20 mm.

From: ฿ 10,175.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Precision Ball Screw, Shaft End finished product (BNK Shape), Shaft Diameter 8, Lead 2

THK

From: ฿ 9,100.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 14, Lead: 4

THK

Because the shaft ends are complete, no drawing and machining are necessary and the product can be used as-is.
[Features]
· The product with finished shaft ends is a standardized ball screw unit with a space-saving screw shaft and ball screw nut.
· The screw shaft is standardized with the shaft ends to fit the support unit. The mount type is fixed-supported, and forms a direct structure with the motor.
· The screw shaft and ball screw nut shape feature a compact design. The parts can be assembled in the same shape when used with a support unit or nut bracket, creating a simple and high-accuracy feed mechanism.
· An appropriate amount of grease is enclosed in ball screw nuts.
· In addition, for cases where contaminants are a concern, dust-proof equipment (bellows, etc.) must always be used to completely cover the screw shafts.
· A ball screw standardized with screw shaft diameter ø4 to 25 mm and lead 1 to 20 mm.

From: ฿ 9,679.00
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 14, Lead: 2

THK

From: ฿ 9,789.00
Days to Ship: 5 Day(s)

5 Day(s)


Brand
Product Series
CAD
From
Days to Ship
Screw Shaft O.D. d(Ø)
Product Type
Lead(mm)
Accuracy Grade
Flange Shape
Axial End Type

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Brand	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK	THK
Product Series	Rolled Ball Screw, No Preloading Type (Single Nut) BTK	Rolled Ball Screw, Non-Preloading Type (Nut Single Unit) BLK	Rolled Ball Screw, No Preloading Type (Nut Single Unit) WTF	Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 8, Lead: 1	Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 10, Lead: 2	Precision Ball Screw With No Machining on Shaft Ends, MBF Model (No Preload Type)	Precision Ball Screw, Shaft End finished product (BNK Shape), Shaft Diameter 12, Lead 2	Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 6, Lead: 1	Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 8, Lead: 10	Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 4, Lead: 1	Precision Ball Screw, Shaft End finished product (BNK Shape), Shaft Diameter 8, Lead 2	Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 14, Lead: 4	Shaft Tip Complete Product Precision Ball Screw (BNK Type), Shaft Diameter: 14, Lead: 2
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D
From	฿ 3,379.00	฿ 8,701.32	฿ 12,923.69	฿ 10,424.00	฿ 9,872.00	฿ 9,159.00	฿ 10,038.00	฿ 16,380.00	฿ 12,988.00	฿ 10,175.00	฿ 9,100.00	฿ 9,679.00	฿ 9,789.00
Days to Ship	5 Day(s)	5 Day(s)	22 Day(s)	5 Day(s)	5 Day(s)	22 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)
Screw Shaft O.D. d(Ø)	12 ～ 32	16 ～ 36	15 ～ 25	8	10	4 ～ 14	12	6	8	4	8	14	14
Product Type	Rolled Ball Screw	Rolled Ball Screw	Rolled Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw	Precision Ball Screw
Lead(mm)	5 ～ 10	16 ～ 32	30 ～ 50	1	2	1 ～ 4	2	1	10	1	2	4	2
Accuracy Grade	-	-	-	C3 / C5 / C7	C3 / C5 / C7	C5 / C7	C3 / C5 / C7	C3 / C5	C5 / C7	C3 / C5 / C7	C3 / C5 / C7	C3 / C5 / C7	C3 / C5 / C7
Flange Shape	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends	Round Shape, 2 Set Screw Flats at both ends
Axial End Type	-	-	-	-	-	-	-	-	-	-	-	-	-

Application example related to this category

High Accuracy XY Table Unit

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Related Categories to Ball Screw

FAQ Ball screw

Question: What are the benefits of using a ball screw over a lead screw?: Answer: Ball screws offer higher efficiency, precision, and speed compared to lead screws. Ball screw have lower friction and can transfer higher loads with greater accuracy and repeatability. They require less power to operate and have longer lifespans.
Question: How do you choose the right ball screw for your application?: Answer: To choose the right ball screw, you need to consider factors such as load capacity, speed, accuracy, and repeatability. You should also consider environmental conditions like temperature and humidity. It is recommended to consult with a ball screw supplier or engineer to ensure that the ball screw meets your application requirements.
Question: How do you determine the load capacity of a ball screw?: Answer: The load capacity of a ball screw depends on factors such as screw diameter, lead, and the number of ball circuits. You can calculate the load capacity using manufacturer-provided formulas or consult with a ball screw supplier or engineer to determine the load capacity for your specific application.
Question: How do you lubricate a ball screw?: Answer: Ball screws require lubrication to reduce friction and wear. The appropriate lubricant and lubrication method depends on the specific application and the type of ball screw. It is recommended to consult with the ball screw manufacturer or supplier to ensure that the right lubricant and lubrication method is used.
Question: What are the maintenance requirements for ball screws?: Answer: Maintenance requirements for ball screws include regular inspection for signs of wear or damage, cleaning, and lubrication. It is essential to follow the manufacturer's recommendations and guidelines for maintenance to ensure the proper functioning and longevity of the ball screw.
Question: How many types of ball screws are there, and what are their differences?: Answer: There are several types of ball screws, including ground ball screws, rolled ball screws, miniature ball screws, and large-diameter ball screws. The main differences between these types of ball screws are in their manufacturing methods, accuracy, load capacity, and application suitability. Consult with a ball screw supplier or engineer to determine the right type of ball screw for your specific application.