Linear shafts / one-sided keyway / external thread / internal thread / two-sided keyway (Part Numbers - CAD Download)

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MISUMI

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SFJQ has been localized according to European needs and requirements. Please have a look on the EU version SFJQEU. SFJQEU is available in EN 1.1213 (Cf53) and h6 / h7.

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Technical Information

Back to Linear Shaft Category

Technical Drawing - Linear Shafts

Ends Grooved/Threaded/Tapped/Stepped:Related Image

Annealing could reduce hardness at set screw grooved shaft end machined areas (effective thread length + approx. 10mm).
L Dimension Tolerance, Circularity, Straightness, Perpendicularity, Concentricity and Changes in Hardness >> P.111
Features of LTBC Plating Here

Basic Properties (e.g. material, hardness, coating, tolerance) - Linear Shafts

Type					Material	Hardness	Surface Treatment
Solid, Both Ends Grooved	Solid, One End Grooved	One End Tapped	One End Threaded	One End Threaded with O.D. same as Shaft O.D.	Material	Hardness	Surface Treatment
SFJQ	SFJS	SFTS	SFNS	SFQS	EN 1.3505 Equiv.	Effective Hardened Depth of Induction Hardening >>P.112 EN 1.3505 Equiv. 58HRC~ EN 1.4037 Equiv. 56HRC~	-
SSFJQ	SSFJS	SSFTS	SSFNS	SSFQS	EN 1.4037 Equiv.		-
PSFJQ	PSFJS	PSFTS	PSFNS	PSFQS	EN 1.3505 Equiv.		Hard Chrome Plating Plating Hardness: HV750 ~ Plating Thickness: 5µ or More
PSSFJQ	PSSFJS	PSSFTS	PSSFNS	PSSFQS	EN 1.4037 Equiv.

Further specifications can be found under the tab More Information.

Composition of a Product Code - Linear Shafts

Part Number	-	L	-	M	-	F	-	B	-	P	-	V	-	K	-	G	-	Q
SFJQ16	-	100									-	V10	-	K5	-	G10	-	Q5
SSFTS20	-	500	-	M10											-	G10	-	Q7
PSFNS8	-	650			-	F10	-	B8	-	P4					-	G20	-	Q4

Alterations - Linear Shafts

Ends Grooved/Threaded/Tapped/Stepped:Related Image

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Part Number
SSFNS15-[25-998/1]-F[2-60/1]-B[2-55/1]-P[5,6,8,10,12]-G[5-45/1]-Q[5,6]
SSFNS16-[30-1200/1]-F[2-80/1]-B[2-75/1]-P[5,6,8,10,12,16]-G[5-48/1]-Q[5,6]
SSFNS18-[25-1398/1]-F[2-80/1]-B[2-75/1]-P[5,6,8,10,12,16]-G[5-54/1]-Q[5,6]
SSFNS20-[30-1200/1]-F[2-100/1]-B[2-95/1]-P[6,8,10,12,16,20]-G[6-60/1]-Q[6,7]
SSFNS25-[30-1200/1]-F[2-120/1]-B[2-115/1]-P[8,10,12,16,20,24]-G[6-75/1]-Q[6,7]
SSFNS30-[35-1500/1]-F[2-150/1]-B[2-145/1]-P[8,10,12,16,20,24,30]-G[6-90/1]-Q7
SSFQS6-[20-600/1]-B[2-37/1]-G[5-18/1]-Q4
SSFQS8-[20-800/1]-B[2-37/1]-G[5-24/1]-Q[4,5]
SSFQS10-[20-800/1]-B[2-47/1]-G[5-30/1]-Q[4,5]
SSFQS12-[20-1000/1]-B[2-55/1]-G[5-36/1]-Q5
SSFQS16-[25-1198/1]-B[2-75/1]-G[5-48/1]-Q[5,6]
SSFQS20-[30-1200/1]-B[2-95/1]-G[6-60/1]-Q[6,7]
SSFQS30-[35-1500/1]-B[2-145/1]-G[6-90/1]-Q7
SSFTS6-[20-600/1]-M3-G[5-18/1]-Q4
SSFTS8-[20-800/1]-M[3,4,5]-G[5-24/1]-Q[4,5]
SSFTS10-[20-800/1]-M[3,4,5,6]-G[5-30/1]-Q[4,5]
SSFTS12-[20-1000/1]-M[4,5,6,8]-G[5-36/1]-Q5
SSFTS13-[25-1000/1]-M[4,5,6,8]-G[5-39/1]-Q5
SSFTS15-[25-1000/1]-M[4,5,6,8,10]-G[5-45/1]-Q[5,6]
SSFTS16-[30-1200/1]-M[4,5,6,8,10]-G[5-48/1]-Q[5,6]
SSFTS18-[30-1400/1]-M[4,5,6,8,10,12]-G[5-54/1]-Q[5,6]
SSFTS20-[30-1200/1]-M[4,5,6,8,10,12]-G[6-60/1]-Q[6,7]
SSFTS25-[30-1200/1]-M[4,5,6,8,10,12,16]-G[6-75/1]-Q[6,7]
SSFTS30-[35-1500/1]-M[6,8,10,12,16,20,24]-G[6-90/1]-Q7

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Shaft end Shape (Left)	[D] Diameter (Shaft) (mm)	[L] Length (Shaft) (mm)	Material	Surface Treatment	Hardness	End Section Type	[B] Length (thread) (mm)	[F] Length (stud - offset - front side) (mm)	[K] Width (mounting groove - 45° chamfered) (mm)	[Q] (mm)	[P] Diameter (stepped - front side) (mm)	[V] Length (groove) (mm)	[G] (mm)	[M] Size (thread - depth 2xM) (mm)
-	1	4 Days	10	External thread	15	25 ～ 998	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded	2 ～ 55	2 ～ 60	-	5 ～ 6	5 ～ 12	-	5 ～ 45	-
-	1	4 Days	10	External thread	16	30 ～ 1200	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded	2 ～ 75	2 ～ 80	-	5 ～ 6	5 ～ 16	-	5 ～ 48	-
-	1	7 Days	10	External thread	18	25 ～ 1398	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded	2 ～ 75	2 ～ 80	-	5 ～ 6	5 ～ 16	-	5 ～ 54	-
-	1	4 Days	10	External thread	20	30 ～ 1200	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded	2 ～ 95	2 ～ 100	-	6 ～ 7	6 ～ 20	-	6 ～ 60	-
-	1	4 Days	10	External thread	25	30 ～ 1200	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded	2 ～ 115	2 ～ 120	-	6 ～ 7	8 ～ 24	-	6 ～ 75	-
-	1	4 Days	10	External thread	30	35 ～ 1500	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded	2 ～ 145	2 ～ 150	-	7	8 ～ 30	-	6 ～ 90	-
-	1	7 Days	10	External thread	6	20 ～ 600	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded Shafts with O.D. same as Shaft O.D.	2 ～ 37	-	-	4	-	-	5 ～ 18	-
-	1	7 Days	10	External thread	8	20 ～ 800	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded Shafts with O.D. same as Shaft O.D.	2 ～ 37	-	-	4 ～ 5	-	-	5 ～ 24	-
-	1	7 Days	10	External thread	10	20 ～ 800	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded Shafts with O.D. same as Shaft O.D.	2 ～ 47	-	-	4 ～ 5	-	-	5 ～ 30	-
-	1	7 Days	10	External thread	12	20 ～ 1000	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded Shafts with O.D. same as Shaft O.D.	2 ～ 55	-	-	5	-	-	5 ～ 36	-
-	1	7 Days	10	External thread	16	25 ～ 1198	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded Shafts with O.D. same as Shaft O.D.	2 ～ 75	-	-	5 ～ 6	-	-	5 ～ 48	-
-	1	7 Days	10	External thread	20	30 ～ 1200	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded Shafts with O.D. same as Shaft O.D.	2 ～ 95	-	-	6 ～ 7	-	-	6 ～ 60	-
-	1	7 Days	10	External thread	30	35 ～ 1500	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Threaded Shafts with O.D. same as Shaft O.D.	2 ～ 145	-	-	7	-	-	6 ～ 90	-
-	1	4 Days	10	Internal thread	6	20 ～ 600	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	4	-	-	5 ～ 18	3
-	1	4 Days	10	Internal thread	8	20 ～ 800	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	4 ～ 5	-	-	5 ～ 24	3 ～ 5
-	1	4 Days	10	Internal thread	10	20 ～ 800	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	4 ～ 5	-	-	5 ～ 30	3 ～ 6
-	1	4 Days	10	Internal thread	12	20 ～ 1000	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	5	-	-	5 ～ 36	4 ～ 8
-	1	4 Days	10	Internal thread	13	25 ～ 1000	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	5	-	-	5 ～ 39	4 ～ 8
-	1	4 Days	10	Internal thread	15	25 ～ 1000	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	5 ～ 6	-	-	5 ～ 45	4 ～ 10
-	1	4 Days	10	Internal thread	16	30 ～ 1200	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	5 ～ 6	-	-	5 ～ 48	4 ～ 10
-	1	7 Days	10	Internal thread	18	30 ～ 1400	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	5 ～ 6	-	-	5 ～ 54	4 ～ 12
-	1	4 Days	10	Internal thread	20	30 ～ 1200	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	6 ～ 7	-	-	6 ～ 60	4 ～ 12
-	1	4 Days	10	Internal thread	25	30 ～ 1200	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	6 ～ 7	-	-	6 ～ 75	4 ～ 16
-	1	4 Days	10	Internal thread	30	35 ～ 1500	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	No Treatment	Induction Hardening (56HRC~)	One End Tapped	-	-	-	7	-	-	6 ～ 90	6 ～ 24

Back to Linear Shaft Category

Technical Drawing - Linear Shafts

Specification Tables - Linear Shafts

Overview of the shaft designs as PDF

Part Number		L specified in 1mm Increment	Slot Dimension						D Tol.	C
Type	D	L specified in 1mm Increment	V, G (1mm Increment)	K, Q (Selection)				D₁	g6	C
Solid, Both Ends Grooved SFJQ SSFJQ PSFJQ PSSFJQ	6	20~600	5~18	4				5	-0.004 -0.012	0.5 or Less
	8	20~800	5~24	4	5			7	-0.005 -0.014	0.5 or Less
	10	20~800	5~30	4	5			9	-0.005 -0.014	0.5 or Less
	12	20~1000	5~36		5			10	-0.006 -0.017	0.5 or Less
	13	25~1000	5~39		5			11	-0.006 -0.017	0.5 or Less
	15	25~1000	5~45		5	6		13	-0.006 -0.017	0.5 or Less
	16	30~1200	5~48		5	6		14	-0.006 -0.017	0.5 or Less
	18	30~1200	5~54		5	6		16	-0.006 -0.017	0.5 or Less
	20	30~1200	6~60			6	7	18	-0.007 -0.020	1.0 or Less
	25	35~1200	6~75			6	7	23	-0.007 -0.020	1.0 or Less
	30	35~1500	6~90				7	28	-0.007 -0.020	1.0 or Less

Part Number		L specified in 1mm Increment	Slot Dimension						D Tol.	C
Type	D	L specified in 1mm Increment	G (1mm Increment)	Q (Selection)				D₁	g6	C
Solid, One End Grooved SFJS SSFJS PSFJS PSSFJS	6	20~600	5~18	4				5	-0.004 -0.012	0.5 or Less
	8	20~800	5~24	4	5			7	-0.005 -0.014	0.5 or Less
	10	20~800	5~30	4	5			9	-0.005 -0.014	0.5 or Less
	12	20~1000	5~36		5			10	-0.006 -0.017	0.5 or Less
	13	25~1000	5~39		5			11	-0.006 -0.017	0.5 or Less
	15	25~1000	5~45		5	6		13	-0.006 -0.017	0.5 or Less
	16	30~1200	5~48		5	6		14	-0.006 -0.017	0.5 or Less
	18	30~1200	5~54		5	6		16	-0.006 -0.017	0.5 or Less
	20	30~1200	6~60			6	7	18	-0.007 -0.020	1.0 or Less
	25	35~1200	6~75			6	7	23	-0.007 -0.020	1.0 or Less
	30	35~1500	6~90				7	28	-0.007 -0.020	1.0 or Less

Part Number		L specified in 1mm Increment	One End Tapped Selection										Slot Dimension						D Tol.	C
Type	D	L specified in 1mm Increment	M (Coarse)										G (1mm Increment)	Q (Selection)				D₁	g6	C
One End Tapped Type SFTS SSFTS PSFTS PSSFTS	6	20~600	3										5~18	4				5	-0.004 -0.012	0.5 or Less
	8	20~800	3	4	5								5~24	4	5			7	-0.005 -0.014	0.5 or Less
	10	20~800	3	4	5	6							5~30	4	5			9	-0.005 -0.014	0.5 or Less
	12	20~1000		4	5	6	8						5~36		5			10	-0.006 -0.017	0.5 or Less
	13	25~1000		4	5	6	8						5~39		5			11	-0.006 -0.017	0.5 or Less
	15	25~1000		4	5	6	8	10					5~45		5	6		13	-0.006 -0.017	0.5 or Less
	16	30~1200		4	5	6	8	10					5~48		5	6		14	-0.006 -0.017	0.5 or Less
	18	30~1200		4	5	6	8	10	12				5~54		5	6		16	-0.006 -0.017	0.5 or Less
	20	30~1200		4	5	6	8	10	12				6~60			6	7	18	-0.007 -0.020	1.0 or Less
	25	35~1200		4	5	6	8	10	12	16			6~75			6	7	23	-0.007 -0.020	1.0 or Less
	30	35~1500				6	8	10	12	16	20	24	6~90				7	28	-0.007 -0.020	1.0 or Less

V+K/2+1≤L/2 or G+Q/2+1≤L/2 is required. For One End Tapped Type, G≤L-Mx2-Qx2 is required.
When Mx2.5+4≥L, tap pilot holes may go through.

Part Number		1mm Increment			Selection											Slot Dimension						D Tol.	(Y)Max.	R	C
Type	D	L	F	B	P											G (1mm Increment)	Q (Selection)				D₁	g6	(Y)Max.	R	C
Threaded Type SFNS SSFNS PSFNS PSSFNS	6	25~598	2≤F≤Px5	(When P≤6) B≤F-2 (When P=8, 10) B≤F-3 (When P≥12) B≤F-5 B≥Pitchx3	3	4	5	6								5~18	4				5	-0.004 -0.012	600	0.3 or Less	0.5 or Less
	8	25~798			3	4	5	6	8							5~24	4	5			7	-0.005 -0.014	800	0.3 or Less	0.5 or Less
	10	25~798				4	5	6	8	10						5~30	4	5			9	-0.005 -0.014	800	0.3 or Less	0.5 or Less
	12	25~998					5	6	8	10	12					5~36		5			11	-0.006 -0.017	1000	0.3 or Less	0.5 or Less
	13	25~998					5	6	8	10	12					5~39		5			11	-0.006 -0.017	1000	0.3 or Less	0.5 or Less
	15	25~998					5	6	8	10	12					5~45		5	6		13	-0.006 -0.017	1000	0.3 or Less	0.5 or Less
	16	25~1198					5	6	8	10	12	16				5~48		5	6		14	-0.006 -0.017	1200	0.3 or Less	0.5 or Less
	18	25~1198					5	6	8	10	12	16				5~54		5	6		16	-0.006 -0.017	1200	0.3 or Less	0.5 or Less
	20	25~1198						6	8	10	12	16	20			6~60			6	7	18	-0.007 -0.020	1200	0.3 or Less	1.0 or Less
	25	25~1198							8	10	12	16	20	24		6~75			6	7	23	-0.007 -0.020	1200	0.3 or Less	1.0 or Less
	30	25~1498							8	10	12	16	20	24	30	6~90				7	28	-0.007 -0.020	1500	0.3 or Less	1.0 or Less

Part Number		1mm Increment		Slot Dimension						D Tol.	(Y)Max.	C
Type	D	L	B	G (1mm Increment)	Q (Selection)				D₁	g6	(Y)Max.	C
One End Threaded with O.D. same as Shaft O.D. SFQS SSFQS PSFQS PSSFQS	6	25~598	Pitchx3≤B≤Mx5 For One End Threaded with O.D. same as Shaft O.D., L dimensions have priority, thus the effective thread length will be B-(Pitchx2).	5~18	4				5	-0.004 -0.012	600	0.5 or Less
	8	25~798		5~24	4	5			7	-0.005 -0.014	800	0.5 or Less
	10	25~798		5~30	4	5			9	-0.005 -0.014	800	0.5 or Less
	12	25~998		5~36		5			11	-0.006 -0.017	1000	0.5 or Less
	16	25~1198		5~48		5	6		14	-0.006 -0.017	1200	0.5 or Less
	20	25~1198		6~60			6	7	18	-0.007 -0.020	1200	1.0 or Less
	30	25~1498		6~90				7	28	-0.007 -0.020	1500	1.0 or Less

V+K/2+1≤L/2 or G+Q/2+1≤L/2 is required.

Coarse Thread Dimension
M	Pitch
3	0.5
4	0.7
5	0.8
6	1.0
8	1.25
10	1.5
12	1.75
16	2.0
20	2.5
24	3.0
30	3.5

Alterations - Linear Shafts

Ends Grooved/Threaded/Tapped/Stepped:Related Image

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Basic information

Basic Shape	Solid	Shaft end Shape (Right)	Set screw groove	Shaft end Perpendicularity	0.2
Heat Treatment	Induction Hardened	ISO Tolerance	g6

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Basic Attributes

Shaft end Shape (Left)
- Straight
- Internal thread
- External thread
- Set screw groove
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[D] Diameter (Shaft)(mm)
6

8

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12

13

15

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18

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[L] Length (Shaft)(mm)
[20-1500/1mm Unit(s)]
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Material
- Alloyed Steel
  - EN 1.3505 Equiv.
- Stainless Steel (martensitique)
  - EN 1.4037 Equiv.
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Surface Treatment
- No Treatment
- Hard Chrome Plating
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Hardness
- Induction Hardening (56HRC~)
- Induction Hardening (58HRC~)
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End Section Type
- One End Tapped
- One End Threaded
- One End Threaded Shafts with O.D. same as Shaft O.D.
- Solid, Both Ends Grooved
- Solid, One End Grooved
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[B] Length (thread)(mm)
[2-145/1mm Unit(s)]
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[F] Length (stud - offset - front side)(mm)
[2-150/1mm Unit(s)]
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[K] Width (mounting groove - 45° chamfered)(mm)
4

5

6

7
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[Q](mm)
4

5

6

7
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[P] Diameter (stepped - front side)(mm)
3

4

5

6

8

10

12

16

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24

30
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[V] Length (groove)(mm)
[5-90/1mm Unit(s)]
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[G](mm)
[5-90/1mm Unit(s)]
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[M] Size (thread - depth 2xM)(mm)
3

4

5

6

8

10

12

16

20

24
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Type
- PSFJQ
- PSFJS
- PSFNS
- PSFQS
- PSFTS
- PSSFJQ
- PSSFJS
- PSSFNS
- PSSFQS
- PSSFTS
- SFJQ
- SFJS
- SFNS
- SFQS
- SFTS
- SSFJQ
- SSFJS
- SSFNS
- SSFQS
- SSFTS
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Optional Attributes

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

Frequently Asked Questions (FAQ)

Question:
What is the difference between a hollow shaft and a solid shaft?: Answer:
With the same size, there are three differences between a hollow shaft and a solid shaft. Hollow shafts weigh less. The inner cavity of a hollow shaft is suitable for use as a channel (cable channel). Solid shafts are a bit more rigid (higher resistance torque).
Question:
What is the minimum order of linear shafts from MISUMI?: Answer:
MISUMI supplies solid shafts, hollow shafts and precision shafts starting at a lot size of 1. This also applies to all other items in our product range.
Question:
Noises and vibrations occur with a linear shaft. In addition, there are jerky movements. What could cause this?: Answer:
In general, it may be caused if the steel shaft is not properly lubricated. In addition, an incorrectly selected diameter tolerance of the linear shafts may also make the cycle of motion more difficult. When using MISUMI linear ball bearings, a g6 shaft tolerance is recommended (tolerance recommendations may vary depending on the manufacturer).
Question:
What is the strength of a solid shaft?: Answer:
The strength of a linear shaft, although it is a solid shaft, hollow shaft or precision shaft, should always be selected in consideration of the strength of the material used.
Question:
What are the advantages of a hollow shaft over a solid shaft?: Answer:
There are various advantages of a hollow shaft compared to a solid shaft. If the outer diameter is the same, the weight of a hollow shaft is lower than that of a solid shaft. However, the cavity of the hollow shaft can also be used as a cable channel or for cooling. A hollow shaft is at the same weight or with the same cross-sectional area more rigid than a solid shaft, because the outer diameter is larger. However, the question that needs to be answered is whether the advantage is a greater room utilization or less weight.
Question:
Is a hollow shaft stiffer than a solid shaft?: Answer:
The rigidity of a hollow shaft is slightly lower with the same outer diameter than that of a solid shaft. However, with the same cross-sectional area or with the same weight, the stiffness of a hollow shaft is higher than that of a solid shaft, because the outer diameter of the hollow shaft is larger.
Question:
Why do I have running grooves on the linear shafts of my 3D printers?: Answer:
The running grooves on the linear shaft may have been created, for example, by using a linear ball bearing. To prevent grooves from forming on a steel shaft, it should be hardened and hard chromium plated, making it more durable and resistant to the wear and tear from ball bearings.
Question:
How do the flexure properties of hollow shafts and solid shafts differ?: Answer:
With an equally large outer diameter, a solid shaft has better flexure properties than an equally large hollow shaft. However, the solid shaft is not much stiffer than a hollow shaft with the same outer diameter, since the outer sections mainly carry the load. Hollow shafts with the same cross-sectional area are more rigid than solid shafts, because they have a larger outer diameter. Therefore, there is physically more material in the outer sections for the bending, which bears the loads.
Question:
I need a lacquered or matted shaft because reflections cause problems with the optics. Does MISUMI have something like that?: Answer:
MISUMI LTBC-coated linear shafts are an alternative to painted or matted steel shafts. The LTBC coating is low-reflection and has the same effect as painted and matte shafts. In addition, LTBC-coated linear shafts are more resistant to wear and tear and flaking. You can find further information on LTBC coating here .
Question:
It has been shown that a hollow shaft is stronger than a solid shaft made of the same material. Why?: Answer:
A hollow shaft with the same outer dimensions is principally not stronger than a solid shaft. However, a hollow shaft per weight unit is stronger.