Linear shafts / double-sided external thread

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MISUMI

Order quantities extended (D-JIT)

(i)Remark

SFAL has been localized according to European needs and requirements. Please have a look on the EU version SFALEU. SFALEU 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

Both Ends Threaded/Thread Dia. Equal to Shaft Dia.:Related Image

Annealing may lower hardness at shaft end machined areas (effective thread length + approx. 10mm). >>P.112
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
D Tol. g6	D Tol. h5	D Tol. f8	Material	Hardness	Surface Treatment
SFAL	SFUL	-	EN 1.3505 Equiv.	Effective Hardened Depth of Induction Hardening >>P.112 EN 1.3505 Equiv. 58HRC~ EN 1.4037 Equiv. 56HRC~	-
SSFAL	SSFUL	-	EN 1.4037 Equiv.		-
PSFAL	PSFUL	-	EN 1.3505 Equiv.		Hard Chrome Plating Plating Hardness: HV750 ~ Plating Thickness: 5µ or More
PSSFAL	PSSFUL	-	EN 1.4037 Equiv.
RSFAL	-	-	EN 1.3505 Equiv.		LTBC Plating
-	-	PSFGL	EN 1.1191 Equiv.	-	Hard Chrome Plating Plating Hardness: HV750 ~ Plating Thickness: 10µ or More
-	-	PSSFGL	EN 1.4301 Equiv.	-

Further specifications can be found under the tab More Information.

Composition of a Product Code - Linear Shafts

Part Number	-	L	-	B	-	S
SFAL20	-	300	-	B20	-	S15

Alterations - Linear Shafts

Both Ends Threaded/Thread Dia. Equal to Shaft Dia.:Related Image

You find further options in detail under Option Overview.

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Part Number
PSFAL3-[25-194/1]-B[3-15/1]-S[3-15/1]
PSFAL4-[25-292/1]-B[4-20/1]-S[4-20/1]
PSFAL5-[25-392/1]-B[4-25/1]-S[4-25/1]
PSFAL6-[25-790/1]-B[5-30/1]-S[5-30/1]
PSFAL8-[25-986/1]-B[7-40/1]-S[7-40/1]
PSFAL10-[25-984/1]-B[8-50/1]-S[8-50/1]
PSFAL12-[25-1182/1]-B[9-60/1]-S[9-60/1]
PSFAL16-[25-1180/1]-B[10-80/1]-S[10-80/1]
PSFAL20-[25-1174/1]-B[13-100/1]-S[13-100/1]
PSFAL30-[25-1464/1]-B[18-150/1]-S[18-150/1]
PSFGL6-[25-596/1]-B[5-30/1]-S[5-30/1]
PSFGL8-[25-796/1]-B[7-40/1]-S[7-40/1]
PSFGL10-[25-796/1]-B[8-50/1]-S[8-50/1]
PSFGL12-[25-996/1]-B[9-60/1]-S[9-60/1]
PSFGL16-[25-1196/1]-B[10-80/1]-S[10-80/1]
PSFGL20-[25-1196/1]-B[13-100/1]-S[13-100/1]
PSFGL30-[25-1496/1]-B[18-150/1]-S[18-150/1]
PSFUL3-[25-194/1]-B[3-15/1]-S[3-15/1]
PSFUL4-[25-292/1]-B[4-20/1]-S[4-20/1]
PSFUL5-[25-392/1]-B[4-25/1]-S[4-25/1]
PSFUL6-[25-790/1]-B[5-30/1]-S[5-30/1]
PSFUL8-[25-986/1]-B[7-40/1]-S[7-40/1]
PSFUL10-[25-984/1]-B[8-50/1]-S[8-50/1]
PSFUL12-[25-1182/1]-B[9-60/1]-S[9-60/1]
PSFUL16-[25-1180/1]-B[10-80/1]-S[10-80/1]
PSFUL20-[25-1174/1]-B[13-100/1]-S[13-100/1]
PSFUL30-[25-1464/1]-B[18-150/1]-S[18-150/1]
PSSFAL3-[25-194/1]-B[3-15/1]-S[3-15/1]
PSSFAL4-[25-292/1]-B[4-20/1]-S[4-20/1]
PSSFAL5-[25-392/1]-B[4-25/1]-S[4-25/1]
PSSFAL6-[25-790/1]-B[5-30/1]-S[5-30/1]
PSSFAL8-[25-986/1]-B[7-40/1]-S[7-40/1]
PSSFAL10-[25-984/1]-B[8-50/1]-S[8-50/1]
PSSFAL12-[25-1182/1]-B[9-60/1]-S[9-60/1]
PSSFAL16-[25-1180/1]-B[10-80/1]-S[10-80/1]
PSSFAL20-[25-1174/1]-B[13-100/1]-S[13-100/1]
PSSFAL30-[25-1464/1]-B[18-150/1]-S[18-150/1]
PSSFGL6-[25-596/1]-B[5-30/1]-S[5-30/1]
PSSFGL8-[25-796/1]-B[7-40/1]-S[7-40/1]
PSSFGL10-[25-796/1]-B[8-50/1]-S[8-50/1]
PSSFGL12-[25-996/1]-B[9-60/1]-S[9-60/1]
PSSFGL16-[25-1196/1]-B[10-80/1]-S[10-80/1]
PSSFGL20-[25-1196/1]-B[13-100/1]-S[13-100/1]
PSSFGL30-[25-1496/1]-B[18-150/1]-S[18-150/1]
PSSFUL3-[25-194/1]-B[3-15/1]-S[3-15/1]
PSSFUL4-[25-292/1]-B[4-20/1]-S[4-20/1]
PSSFUL5-[25-392/1]-B[4-25/1]-S[4-25/1]
PSSFUL6-[25-890/1]-B[5-30/1]-S[5-30/1]
PSSFUL8-[25-1086/1]-B[7-40/1]-S[7-40/1]
PSSFUL10-[25-1184/1]-B[8-50/1]-S[8-50/1]
PSSFUL12-[25-1382/1]-B[9-60/1]-S[9-60/1]
PSSFUL16-[25-1380/1]-B[10-80/1]-S[10-80/1]
PSSFUL20-[25-1374/1]-B[13-100/1]-S[13-100/1]
PSSFUL30-[25-1464/1]-B[18-150/1]-S[18-150/1]
RSFAL3-[25-194/1]-B[3-15/1]-S[3-15/1]
RSFAL4-[25-292/1]-B[4-20/1]-S[4-20/1]
RSFAL5-[25-392/1]-B[4-25/1]-S[4-25/1]
RSFAL6-[25-500/1]-B[5-30/1]-S[5-30/1]
RSFAL8-[25-500/1]-B[7-40/1]-S[7-40/1]
RSFAL10-[25-500/1]-B[8-50/1]-S[8-50/1]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	[D] Diameter (Shaft) (mm)	[L] Length (Shaft) (mm)	Material	Heat Treatment	Surface Treatment	ISO Tolerance	Hardness	[B] Length (thread) (mm)	[S] Length (thread) (mm)
-	1	10 Days	10	3	25 ～ 194	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	3 ～ 15	3 ～ 15
-	1	10 Days	10	4	25 ～ 292	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	4 ～ 20	4 ～ 20
-	1	10 Days	10	5	25 ～ 392	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	4 ～ 25	4 ～ 25
-	1	4 Days	10	6	25 ～ 790	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	5 ～ 30	5 ～ 30
-	1	4 Days	10	8	25 ～ 986	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	7 ～ 40	7 ～ 40
-	1	4 Days	10	10	25 ～ 984	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	8 ～ 50	8 ～ 50
-	1	4 Days	10	12	25 ～ 1182	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	9 ～ 60	9 ～ 60
-	1	4 Days	10	16	25 ～ 1180	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	10 ～ 80	10 ～ 80
-	1	4 Days	10	20	25 ～ 1174	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	13 ～ 100	13 ～ 100
-	1	4 Days	10	30	25 ～ 1464	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (58HRC~)	18 ～ 150	18 ～ 150
-	1	6 Days	10	6	25 ～ 596	[Unalloyed Steel] EN 1.1191 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	5 ～ 30	5 ～ 30
-	1	6 Days	10	8	25 ～ 796	[Unalloyed Steel] EN 1.1191 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	7 ～ 40	7 ～ 40
-	1	6 Days	10	10	25 ～ 796	[Unalloyed Steel] EN 1.1191 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	8 ～ 50	8 ～ 50
-	1	6 Days	10	12	25 ～ 996	[Unalloyed Steel] EN 1.1191 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	9 ～ 60	9 ～ 60
-	1	6 Days	10	16	25 ～ 1196	[Unalloyed Steel] EN 1.1191 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	10 ～ 80	10 ～ 80
-	1	6 Days	10	20	25 ～ 1196	[Unalloyed Steel] EN 1.1191 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	13 ～ 100	13 ～ 100
-	1	6 Days	10	30	25 ～ 1496	[Unalloyed Steel] EN 1.1191 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	18 ～ 150	18 ～ 150
-	1	7 Days	10	3	25 ～ 194	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	3 ～ 15	3 ～ 15
-	1	7 Days	10	4	25 ～ 292	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	4 ～ 20	4 ～ 20
-	1	7 Days	10	5	25 ～ 392	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	4 ～ 25	4 ～ 25
-	1	4 Days	10	6	25 ～ 790	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	5 ～ 30	5 ～ 30
-	1	4 Days	10	8	25 ～ 986	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	7 ～ 40	7 ～ 40
-	1	4 Days	10	10	25 ～ 984	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	8 ～ 50	8 ～ 50
-	1	4 Days	10	12	25 ～ 1182	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	9 ～ 60	9 ～ 60
-	1	4 Days	10	16	25 ～ 1180	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	10 ～ 80	10 ～ 80
-	1	4 Days	10	20	25 ～ 1174	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	13 ～ 100	13 ～ 100
-	1	4 Days	10	30	25 ～ 1464	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (58HRC~)	18 ～ 150	18 ～ 150
-	1	10 Days	10	3	25 ～ 194	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	3 ～ 15	3 ～ 15
-	1	10 Days	10	4	25 ～ 292	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	4 ～ 20	4 ～ 20
-	1	10 Days	10	5	25 ～ 392	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	4 ～ 25	4 ～ 25
-	1	4 Days	10	6	25 ～ 790	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	5 ～ 30	5 ～ 30
-	1	4 Days	10	8	25 ～ 986	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	7 ～ 40	7 ～ 40
-	1	4 Days	10	10	25 ～ 984	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	8 ～ 50	8 ～ 50
-	1	4 Days	10	12	25 ～ 1182	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	9 ～ 60	9 ～ 60
-	1	4 Days	10	16	25 ～ 1180	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	10 ～ 80	10 ～ 80
-	1	4 Days	10	20	25 ～ 1174	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	13 ～ 100	13 ～ 100
-	1	4 Days	10	30	25 ～ 1464	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	g6	Induction Hardening (56HRC~)	18 ～ 150	18 ～ 150
-	1	4 Days	10	6	25 ～ 596	[Stainless Steel (austenitic)] EN 1.4301 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	5 ～ 30	5 ～ 30
-	1	4 Days	10	8	25 ～ 796	[Stainless Steel (austenitic)] EN 1.4301 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	7 ～ 40	7 ～ 40
-	1	4 Days	10	10	25 ～ 796	[Stainless Steel (austenitic)] EN 1.4301 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	8 ～ 50	8 ～ 50
-	1	4 Days	10	12	25 ～ 996	[Stainless Steel (austenitic)] EN 1.4301 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	9 ～ 60	9 ～ 60
-	1	4 Days	10	16	25 ～ 1196	[Stainless Steel (austenitic)] EN 1.4301 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	10 ～ 80	10 ～ 80
-	1	4 Days	10	20	25 ～ 1196	[Stainless Steel (austenitic)] EN 1.4301 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	13 ～ 100	13 ～ 100
-	1	4 Days	10	30	25 ～ 1496	[Stainless Steel (austenitic)] EN 1.4301 Equiv.	No Treatment	Hard Chrome Plating	f8	No Induction Hardening	18 ～ 150	18 ～ 150
-	1	7 Days	10	3	25 ～ 194	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	3 ～ 15	3 ～ 15
-	1	7 Days	10	4	25 ～ 292	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	4 ～ 20	4 ～ 20
-	1	7 Days	10	5	25 ～ 392	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	4 ～ 25	4 ～ 25
-	1	7 Days	10	6	25 ～ 890	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	5 ～ 30	5 ～ 30
-	1	7 Days	10	8	25 ～ 1086	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	7 ～ 40	7 ～ 40
-	1	7 Days	10	10	25 ～ 1184	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	8 ～ 50	8 ～ 50
-	1	7 Days	10	12	25 ～ 1382	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	9 ～ 60	9 ～ 60
-	1	7 Days	10	16	25 ～ 1380	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	10 ～ 80	10 ～ 80
-	1	7 Days	10	20	25 ～ 1374	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	13 ～ 100	13 ～ 100
-	1	7 Days	10	30	25 ～ 1464	[Stainless Steel (martensitique)] EN 1.4037 Equiv.	Induction Hardened	Hard Chrome Plating	h5	Induction Hardening (56HRC~)	18 ～ 150	18 ～ 150
-	1	16 Days	10	3	25 ～ 194	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	LTBC Plating	g6	Induction Hardening (58HRC~)	3 ～ 15	3 ～ 15
-	1	16 Days	10	4	25 ～ 292	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	LTBC Plating	g6	Induction Hardening (58HRC~)	4 ～ 20	4 ～ 20
-	1	16 Days	10	5	25 ～ 392	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	LTBC Plating	g6	Induction Hardening (58HRC~)	4 ～ 25	4 ～ 25
-	1	16 Days	10	6	25 ～ 500	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	LTBC Plating	g6	Induction Hardening (58HRC~)	5 ～ 30	5 ～ 30
-	1	16 Days	10	8	25 ～ 500	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	LTBC Plating	g6	Induction Hardening (58HRC~)	7 ～ 40	7 ～ 40
-	1	16 Days	10	10	25 ～ 500	[Alloyed Steel] EN 1.3505 Equiv.	Induction Hardened	LTBC Plating	g6	Induction Hardening (58HRC~)	8 ～ 50	8 ～ 50

Back to Linear Shaft Category

Technical Drawing - Linear Shafts

Specification Tables - Linear Shafts

Overview of the shaft designs as PDF

D Tol.
D	g6	h5	f8
3	-0.002 -0.008	0 -0.004	-
4	-0.004 -0.012	0 -0.005
5
6			-0.010 -0.028
8	-0.005 -0.014	0 -0.006	-0.013 -0.035
10
12	-0.006 -0.017	0 -0.008	-0.016 -0.043
16
20	-0.007 -0.020	0 -0.009	-0.020 -0.053
30

Part Number			1mm Increment		M	(Y) Max.
Type		D	L	B, S	M	(Y) Max.
(D Tolerance g6) SFAL SSFAL PSFAL PSSFAL	(D Tolerance h5) SFUL SSFUL PSFUL PSSFUL	3	25~194	3~15	3	200
		4	25~292	4~20	4	300
		5	25~392	4~25	5	400
		6	25~590	5~30	6	600
		8	25~786	7~40	8	800
RSFAL (L≤500,Ymax≤800) (D Tolerance f8) PSFGL (D≥6) PSSFGL (D≥6)		10	25~784	8~50	10	800
		12	25~982	9~60	12	1000
		16	25~1180	10~80	16	1200
		20	25~1174	13~100	20	1200
		30	25~1464	18~150	30	1500

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
30	3.5

For One End Threaded with O.D. same as Shaft O.D., L dimensions have priority, thus the effective thread length of B(S) dimension will be B(S)-(Pitchx2).
L does not include incomplete threads.

Alterations - Linear Shafts

Both Ends Threaded/Thread Dia. Equal to Shaft Dia.:Related Image

You find further options in detail under Option Overview.

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Basic information

Basic Shape	Solid	Shaft end Shape (Left)	External thread	Shaft end Shape (Right)	External thread
Shaft end Perpendicularity	0.2

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Basic Attributes

[D] Diameter (Shaft)(mm)
3

4

5

6

8

10

12

16

20

30
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[L] Length (Shaft)(mm)
[25-1496/1mm Unit(s)]
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Material
- Unalloyed Steel
  - EN 1.1191 Equiv.
- Stainless Steel (austenitic)
  - EN 1.4301 Equiv.
- Alloyed Steel
  - EN 1.3505 Equiv.
- Stainless Steel (martensitique)
  - EN 1.4037 Equiv.
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Heat Treatment
- No Treatment
- Induction Hardened
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Surface Treatment
- No Treatment
- Hard Chrome Plating
- LTBC Plating
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ISO Tolerance
f8

g6

h5
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Hardness
- Induction Hardening (56HRC~)
- Induction Hardening (58HRC~)
- No Induction Hardening
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[B] Length (thread)(mm)
[3-150/1mm Unit(s)]
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[S] Length (thread)(mm)
[3-150/1mm Unit(s)]
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Type
- PSFAL
- PSFGL
- PSFUL
- PSSFAL
- PSSFGL
- PSSFUL
- RSFAL
- SFAL
- SFUL
- SSFAL
- SSFUL
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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.