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Ball Splines - Both Ends Stepped (Part Numbers)

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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.

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Please check the content on our website as the PDF does not contain the most up-to-date information.

Part Number

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Part Numbers
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Catalog
Technical Information

Both Ends Stepped	Spline Shafts[ M ]SUJ2 Equivalent Nut [ M ]SCM415 Equivalent[ H ]Hardness: 58HRC ~	Spline Shaft, Nut[ M ]Material: SUS440C Equivalent[ H ]Hardness: 55HRC ~
Both Ends Stepped	Nut 1 pc.	Nut 1 pc.
With Round Flange Nut	BSJM	BSJMS
With Compact Flange Nut	BSJN	-
With Straight Nut	BSJS	BSJSS

Specifications

Part Number		-	L	-	F	-	E	-	P	-	Q
	BSJS8 BSJS8G BSJS8L	- - -	300 300 300	- - -	F30 F30 F30	- - -	E20 E20 E20	- - -	P6 P6 P6	- - -	Q5 Q5 Q5

Alternative grease types available.
For Days to Ship, Price and Performance, see >> P.340

■Spline Shafts

Part Number		1mm Increment		P, Q Selection												D	(Y)	Mass (kg/m)
Type	No.	L	F, E														1-Nut Type
Type	No.	1-Nut Type	F, E														min~max
BSJM BSJN BSJS BSJMS BSJSS	*6	60~400(190)	When P, Q=3 2≤F, E≤9 When P, Q=4 2≤F, E≤16 When P, Q≥5 2≤F, E≤P, Qx5	3	4	5										6	56~396(186)	0.23
	*8	60~400(190)			4	5	6									8	56~396(186)	0.39
	*10	60~600(390)			4	5	6	8								10.4	56~596(386)	0.65
	*13	60~600(390)				5	6	8	10							13.4	56~596(386)	1.11
	*16	70~600(390)				5	6	8	10	12	13					16.6	66~596(386)	1.65
	20	80~700						8	10	12	13	15	16			20.6	76~696	2.57
	25	90~900						8	10	12	13	15	16	20		25.8	86~896	4.04
	30	100~1150							10	12	13	15	16	20	25	30.8	96~1146	5.85

[ ! ]For BSJMS and BSJSS, only * marked sizes are available, and the Max. L and Y dimensions are in ( ).
[ ! ]For BSJN, only No. 6, 8 and 10 are available.

■Round Flange Nuts, Compact Flange Nuts

No.	D (h6)	L	Df	H	P.C.D.	d₁	d₂	h	W	d	B	Basic Rated Torque		Basic Load Rating		Allowable Static Moment		Mass (kg)
No.	D (h6)	L	Df	H	P.C.D.	d₁	d₂	h	W	d	B	Dynamic C_t (N • m)	Static C_0t (N • m)	Dynamic C (kN)	Static C₀ (kN)	M₀₁ (N • m)	M₀₂ (N • m)	Mass (kg)
6	14	25	30	6	22	3.5	6	3.1	6.5	1.5	18	3.8	7	1.2	2.1	5	36	0.03
8	16	25	32	6	24	3.5	6	3.1	6.5		21	4.8	8.7	1.2	2.1	5	36	0.04
10	21	40(33)	42(41)	6(8)	32(30)	4.5	8	4.4(5.3)	14(8.5)		25	19(11)	34(21)	3.8(2.4)	6.9(4.3)	26(15)	181(102)	0.09
13	24	44(36)	44(45)	7(8)	33(34)			4.4(5.3)	15(10)		-	28(20)	52(37)	4.6(3.3)	8.3(5.9)	36(22)	251(148)	0.11
16	31	50	51	7	40			4.4	18			51	93	6.2	11.1	56	386	0.2
20	35	63	58	9	45	5.5	9.5	5.4	22.5	2		85	154	8.5	15.3	83	611	0.3
25	42	71	65	9	52	5.5	9.5	5.4	26.5	2		193	348	15.4	27.7	173	1248	0.4
30	47	80	75	10	60	6.6	11	6.5	30	2.5		272	490	18.5	33.3	212	1581	0.57

[ ! ]Dimensions in ( ) are for SUS440C Equivalent. [ ! ]Allowable static moment M₀₁ is a value measured when a single nut is used, and M₀₂ is a value measured when two nuts are used.

■Straight Nuts

No.	D (h6)	L	b		t (+0.05( 0	d	α	Basic Rated Torque		Basic Load Rating		Allowable Static Moment		Mass (kg)	Dimensions of Key (Included)
				Tolerance				Dynamic C_t (N • m)	Static C_0t (N • m)	Dynamic C (kN)	Static C₀ (kN)	M₀₁ (N • m)	M₀₂ (N • m)		B		h		L₁	R
																Tolerance		Tolerance
6	14	25	2.5	+0.014 0	1.2	1.5	15°	3.8	7	1.2	2.1	5	36	0.012	2.5	+0.016 +0.006	2.5	0 -0.025	10.5	1.25
8	16						25°	4.8	8.7	1.2	2.1	5	36	0.013					10.5
10	21	40(33)	3		1.5		-	19(11)	34(21)	3.8(2.4)	6.9(4.3)	26(15)	181(102)	0.06	3		3		17(14)	1.5
13	24	44(36)						28(20)	52(37)	4.6(3.3)	8.3(5.9)	36(22)	251(148)	0.07					17(14)
16	31	50	3.5	+0.018 0	2			51	93	6.2	11.1	56	386	0.15	3.5	+0.024 +0.012	3.5	0 -0.030	18	1.75
20	35	63	4		2.5	2		85	154	8.5	15.3	83	611	0.2	4		4		29	2
25	42	71						193	348	15.4	27.7	173	1248	0.29					33
30	47	80				2.5		272	490	18.5	33.3	212	1581	0.37					42

[ ! ]Dimensions in ( ) are for SUS440C Equivalent. [ ! ]Allowable static moment M₀₁ is a value measured when a single nut is used, and M₀₂ is a value measured when two nuts are used.

Alterations

Part Number

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Part Number

Part Number	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Nut Type	Shaft Outer Dia. D (Ø)	Nut Overall Length (mm)	Nut O.D. (Ø)	Shaft material	Shaft Overall Length L (mm)	Basic Load Rating: Dynamic Load (N)	Allowable Torque (N•m)	Nut Material	Grease	E (mm)	F (mm)	P (mm)	Q (mm)

More Information

Product TOP

Basic Information

Type	Solid Shaft	Nut Length	Standard	Preload	Standard
Accuracy Grade	Standard Grade	End Shape (Left)	Stepped	End Shape (Right)	Stepped
Torque	Middle Torque	Ball Recirculating Type	Single

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87 Part Numbers

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Completed

Specification/Dimensions

Nut Type
- Straight
- Flanged Type
  - Compact Flange
  - Round Flange
Clear
Shaft Outer Dia. D(Ø)
6

8

10.4

13.4

16.6

20.6

25.8

30.8
Clear
Nut Overall Length(mm)
25

33

36

40

44

50

63

71

80
Clear
Nut O.D.(Ø)
14

16

21

24

31

35

42

47
Clear
Shaft material
- SCM415 Equivalent
- SUS440C Equivalent
Clear
Shaft Overall Length L(mm)
[60-1300/1mm Unit(s)]
Clear
Nut Material
- SCM415 Equivalent
- SUS440C Equivalent
Clear
Grease
- ET-100K
- LG2
- Standard (S2)
Clear
E(mm)
[2-125/1mm Unit(s)]
Clear
F(mm)
[2-125/1mm Unit(s)]
Clear
P(mm)
3

4

5

6

8

10

12

13

15

16

20

25
Clear
Q(mm)
3

4

5

6

8

10

12

13

15

16

20

25
Clear
type
- BSJM
- BSJMS
- BSJN
- BSJS
- BSJSS
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

8 Day(s) or Less

9 Day(s) or Less

10 Day(s) or Less

11 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations): Tel：(65) 6733 7211 / FAX：(65) 6733 0211; 9:00am - 6:00pm (Monday - Friday); Technical Inquiry

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Ball Splines - Both Ends Stepped (Part Numbers)

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Specifications

Alterations

Part Number

More Information

Basic Information

Configure

Specification/Dimensions

Nut Type

Shaft Outer Dia. D(Ø)

Nut Overall Length(mm)

Nut O.D.(Ø)

Shaft material

Shaft Overall Length L(mm)

Nut Material

Grease

E(mm)

F(mm)

P(mm)

Q(mm)

type

CAD

Days to Ship

Specify Alterations

Tech Support

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