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Spline Shaft（End Shape (Left)：Stepped）

A spline shaft is a mechanical component designed to transfer torque between two rotating parts while allowing for linear motion or axial displacement. It features a series of ridges or teeth, called splines, along its length. These splines mesh with corresponding grooves in a mating component, such as a gear or coupling, enabling efficient torque transmission while permitting movement along the shaft's axis. Spline shafts are commonly used in various applications requiring precise torque transmission and axial movement, including automotive transmissions, industrial machinery, robotics, and aerospace systems. They offer advantages such as improved power transmission efficiency, reduced backlash, and enhanced load-bearing capacity compared to other shaft coupling methods, making them essential components in many mechanical systems. To select a spline shaft from MISUMI, determine the required specifications such as length, diameter, spline type, material, and any additional features. Then, use MISUMI's online catalog or contact direct our MISUMI for assistance.

Nut Type

Key Provided Type
Flanged Type

6 items

: 30; 45; 60

Ball Splines - Both Ends Stepped

MISUMI

ball spline with stepped edges on both ends. This standard enables highly accurate linear motion and rotational torque transmission. In addition, the contact area between the ball groove machined into the shaft and the steel ball is large, resulting in a large load capacity and long life. Even a single axis can be used as a linear motion guide, allowing for a compact design.

CAD ：

2D / 3D

Days to Ship: 8 Day(s) or more
Ball Splines - One End Stepped

MISUMI

A ball spline with a stepped surface on one end. This standard enables highly accurate linear motion and rotational torque transmission. In addition, the contact area between the ball groove machined into the shaft and the steel ball is large, resulting in a large load capacity and long life. Even a single axis can be used as a linear motion guide, allowing for a compact design.
A dustproof seal is attached to the nut, so the ball will not fall off even if the spline shaft is removed.

CAD ：

2D / 3D

Days to Ship: 8 Day(s) or more
MiSUMi Economy

Ball Splines Straight Nut, Both Ends Stepped

MISUMI

CAD ：

2D / 3D

Days to Ship: 8 Day(s)
MiSUMi Economy

Ball Splines Round Flanged, Both Ends Stepped

MISUMI

CAD ：

2D / 3D

Days to Ship: 8 Day(s)
MiSUMi Economy

Ball Splines Key Provided Straight Nut, One End Stepped

MISUMI

CAD ：

2D / 3D

Days to Ship: 8 Day(s)
MiSUMi Economy

Ball Splines Round Flanged, One End Stepped

MISUMI

CAD ：

2D / 3D

Days to Ship: 8 Day(s)

Days to Ship:	8 Day(s) or more

Days to Ship:	8 Day(s) or more

Days to Ship:	8 Day(s)

Days to Ship:	8 Day(s)

Days to Ship:	8 Day(s)

Days to Ship:	8 Day(s)


Brand
Product Series
CAD
Days to Ship
Nut Type
Spline Shaft Outer Dia. D(Ø)
Type
Nut Length
Nut Overall Length L1(mm)
Nut Outer Dia. D1(Ø)
Preload
Accuracy Grade
End Shape (Left)
End Shape (Right)
Torque
Shaft material
Number of Nuts(pc(s).)


Brand	MISUMI	MISUMI	MISUMI MiSUMi Economy	MISUMI MiSUMi Economy	MISUMI MiSUMi Economy	MISUMI MiSUMi Economy
Product Series	Ball Splines - Both Ends Stepped	Ball Splines - One End Stepped	Ball Splines Straight Nut, Both Ends Stepped	Ball Splines Round Flanged, Both Ends Stepped	Ball Splines Key Provided Straight Nut, One End Stepped	Ball Splines Round Flanged, One End Stepped
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D
Days to Ship	8 Day(s) or more	8 Day(s) or more	8 Day(s)	8 Day(s)	8 Day(s)	8 Day(s)
Nut Type	Key Provided Type / Flanged Type	Key Provided Type / Flanged Type	Flanged Type	Flanged Type	Flanged Type	Flanged Type
Spline Shaft Outer Dia. D(Ø)	6 ～ 30.8	6 ～ 30.8	8 ～ 30	8 ～ 30	8 ～ 30	8 ～ 30
Type	Solid	Solid	Solid	Solid	Solid	Solid
Nut Length	Standard	Standard	-	-	-	-
Nut Overall Length L1(mm)	25 ～ 80	25 ～ 80	-	-	-	-
Nut Outer Dia. D1(Ø)	14 ～ 47	14 ～ 47	-	-	-	-
Preload	Standard	Standard	-	-	-	-
Accuracy Grade	Standard Grade	Standard Grade	-	-	-	-
End Shape (Left)	Stepped	Stepped	Stepped	Stepped	Stepped	Stepped
End Shape (Right)	Stepped	Standard	Stepped	Stepped	Standard	Standard
Torque	Middle Torque	Middle Torque	-	-	-	-
Shaft material	SCM415 Equivalent / SUS440C Equivalent	SUS440C Equivalent / SUJ2 Equivalent	SUJ2 Equivalent	SUJ2 Equivalent	SUJ2 Equivalent	SUJ2 Equivalent
Number of Nuts(pc(s).)	-	-	-	-	-	-

Configure

Specification/Dimensions

Spline Shaft Outer Dia. D(Ø)
6

8

10

10.4

12

13

13.4

16

16.6

20

20.6

25

25.8

30

30.8
Clear

Type
- Solid
- Hollow
- Polygonal
Clear

Nut Length
- Standard
Clear

Nut Overall Length L1(mm)
11.5

17.5

25

33

36

40

44

50

63

71

80
Clear

Nut Outer Dia. D1(Ø)
10

14

16

21

23

24

31

35

42

47
Clear

Preload
- Standard
- Light Preload
- Medium Preload
See the accuracy standard of each manufacturer.

Clear

Accuracy Grade
- Standard Grade
- High Grade
- Precision Grade
See the accuracy standard of each manufacturer.

Clear

End Shape (Left)
- Standard
- Tapped
- Stepped
- Stepped and Tapped
- Stepped and Threaded
Larger Image

Clear

End Shape (Right)
- Standard
- Tapped
- Stepped
- Stepped and Tapped
- Stepped and Threaded
Larger Image

Clear

Torque
- High Torque
- Middle Torque
Clear

Shaft material
- SCM415 Equivalent
- SUS440C Equivalent
- SUS304
- SUJ2 Equivalent
Clear

Number of Nuts(pc(s).)
1

2
Clear

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21 Day(s) or Less

33 Day(s) or Less
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Spline Shaft（End Shape (Left)：Stepped）

Nut Type

Configure

Specification/Dimensions

Spline Shaft Outer Dia. D(Ø)

Type

Nut Length

Nut Overall Length L1(mm)

Nut Outer Dia. D1(Ø)

Preload

Accuracy Grade

End Shape (Left)

End Shape (Right)

Torque

Shaft material

Number of Nuts(pc(s).)

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