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Technical Information

Hollow Shafts - Shaft Ends Configurable Hollow: Related Image

L、F、T dimension tolerance

Dimension Range		Tolerance (㎜)
Over	or less	Tolerance (㎜)
0.5	6	±0.1
6	30	±0.2
30	120	±0.3
120	400	±0.5
400	1000	±0.8
1000	2000	±1.2

[ ! ]Compliant with JIS B 0405 Class m (intermediate).

[ ! ] For plated products, the surface roughness of D part is {{{attr4}}}

; and for unplated products, it is {{{attr5}}}

.
[ ! ] The dimension tolerances for L, F, and T conform to JIS B 0405 Class m.
[ ! ] About hollow shaft wall thickness deviations

[ ! ] (Y) dimensions need to be (Y) ≤ D x 50. (Y) ≤ 1500
[ ! ] L Dimension Tolerance, Circularity, Straightness, Perpendicularity,

Wall Thickness Deviations, and Changes in Hardness

[ ! ] Machined areas may be out of O.D. tolerances due to annealing-induced deformation.

Left End Shape
A	B	C
D	E	F

Right End Shape
A	B	C
D	E	F

■Machining Conditions [!] No alteration condition for Shape A.

·When D = 6, M = 3
·When 8 ≤ D ≤ 12,
t + 1 ≤ M (N) ≤ D − 3
·When 13 ≤ D ≤ 25,
t + 2 ≤ M (N) ≤ D − 3
·When 30 ≤ D ≤ 40,
t + 2 ≤ M (N) ≤ D − 7
·Not applicable to D = 50
·L ≥ M (N) ×4

D	r
6 to 30	R0.3 or Less
35 to 50	0.5 or Less

·When 6 ≤ D ≤ 20,
t + 4 ≤ M (N) ≤ D
·When 25 ≤ D ≤ 40,
t + 6 ≤ M (N) ≤ D
·Not applicable to D = 50
[ ! ] B, S ≥ Pitch × 3 is required.

D	r
6 to 30	R0.3 or Less
35 to 50	0.5 or Less

[NG] D6, 8, 12, 16 or 20 is not available

D	r
6 to 30	R0.3 or Less
35 to 50	0.5 or Less

P (Q) ≥ M (N) +4

Shaft Dia.	d	d Tolerance	m	m Tolerance
6	5	+0.075 0	0.7	+0.1 0
8	7	+0.09 0	0.9	+0.1 0
10	9.6	0 －0.09	1.15	+0.14 0
12	11.5	0 －0.11
13	12.4
16	15.2
20	19	0 －0.21	1.35
25	23.9		1.35
30	28.6		1.65
35	33	0 －0.25	1.65
40	38		1.9
50	47		2.2

[ ! ] When only one end needs to be machined, select A Shape for the other end.

Type	[M] Material	[H] Hardness	[S]Surface Treatment
FSPJ	EN 1.3505 Equiv.	Induction Hardened 58HRC or more	—
FPSPJ	EN 1.3505 Equiv.	Induction Hardened 58HRC or more	Hard Chrome Plating Plating Hardness: HV750 or more Plating Thickness: 5µ or More

Specification Table

Part Number

—

Type Left Shaft End Right Shaft End

FSPJ

—

D12

—

L100

—

T20

—

N10

—

S12

Part Number			Selection	t	0.5 mm Increments		1 mm Increments			Selection	C
Type	Left End Shape	Right End Shape	D	t	L	F·T	B·S	H·U	P·Q	M·N (Coarse)	C
FSPJ FPSPJ	A B C D E F	A B C D E F	6	2	20.0 to 1500.0 (L ≤ D × 50)	2 ≤ F ≤ P (M) ×5 2 ≤ T ≤ Q (N) ×5	2 ≤ B ≤ M × 3 2 ≤ S ≤ N × 3 B ≤ F−2 S ≤ T−2 (When M, N ≤ 6) B ≤ F−3 S ≤ T−3 (When M, N ≤ 8, 10) B ≤ F−5 S ≤ T−5 (When M, N ≥ 12) B·S = 0 (No Threads)	2 ≤ H·U (When D = 6) 3 ≤ H·U (When 6 < D ≤ 10) 4 ≤ H·U (When 10 < D ≤ 20) 5 ≤ H·U (When 20 < D) H·U < L2	t + 4 ≤ P, Q < D	3 4 5 6 8 10 12 16 20 24 30	0.5 or less when D < 20 1.0 or less when D ≥ 20
			8	3
			10	4
			12	6
			13	7
			16	10
			20	14
			25	16
			30	17
			35	19
			40	20
			50	26

[ ! ] Specify t < M, or t < N.

Alteration Details

·See below for alteration.
* When selecting multiple alterations, the distance between machined areas should be 2 mm or more.
* Alteration may lower hardness.

Alteration Code

Alteration Details

Fixed Dimension

Applicable Conditions

Ordering Example

DKC

O.D. Tolerance Change to h5

Hollow Shafts - Shaft Ends Configurable Hollow: Related Image

D	h5 Tolerance
6	0 -0.005

8·10	0 -0.006

12 to 16	0 -0.008

20 to 30	0 -0.009

35 to 50	0 -0.011

[NG] Not applicable to FPSPJ

FSPJAC-D12-L500-T20-N16-S12-DKC

LKC

Precisely change L dimension and tolerance

Hollow Shafts - Shaft Ends Configurable Hollow: Related Image

·L < 200→L±0.03
·200 ≤ L < 500→L±0.05
·L ≥ 500→L±0.1

[ ! ]L Dimension can be specified in 0.1 mm increments

[NG] Not applicable when D - M(N) ≤ 2 for Shape C
[NG] Not applicable when D - P(Q) ≤ 2 for Shape E

FSPJAB-D12-L500.5-N8-LKC

Wrench Flat at One Location
Hollow Shafts - Shaft Ends Configurable Hollow: Related Image

D	W	ℓ1	D	W	ℓ1
6	5	8	20	17	10
8	7		25	22	10
10	8		30	27	15
12	10	10	35	30	15
13	11		40	36	20
16	14		50	41	20

[ ! ]SC = 1 mm Increments
[ ! ]SC+ℓ1 ≤ L
[ ! ] SC = 0 or SC ≥ 1
[ ! ] For Shape B selection, when D ≤ 25 SC ≥ M × 2

SC+ℓ1 ≤ L-N × 2

FSPJAC-D12-L500-T20-N16-S12-SC5

WSC

Wrench Flats at Two Locations
Hollow Shafts - Shaft Ends Configurable Hollow: Related Image

D	W	ℓ1	D	W	ℓ1
6	5	8	20	17	10
8	7		25	22	10
10	8		30	27	15
12	10	10	35	30	15
13	11		40	36	20
16	14		50	41	20

[ ! ] WSC, X = 1 mm Increments
[ ! ]WSC+X+ℓ1 × 2 ≤ L
[ ! ] WSC = 0 or WSC ≥ 1
[ ! ] X = 0 or X ≥ 1
[ ! ] When selecting Shape B
WSC+X+ℓ1 × 2 ≤ L
WSC ≥ M × 2
X ≥ N × 2
[ ! ] Orientation between two wrench flats is not coplanar.

FSPJAC-D12-L500-T20-N16-S12-WSC12-X8

Circularity (M), Straightness (K), L Dimension Tolerance, PerpendicularityBack to Drawing

■Straightness Measurement Method

Shaft ends are supported on V-blocks and turned 360 degrees to
measure shaft runout using a dial indicator.
1/2 of measured runout is defined as the straightness.

■Circularity M
Shaft Outer Dia. g6·h5 (Hardening)

D		Circularity M
Over	or Less	Circularity M
5	13	0.004
13	20	0.005
20	40	0.006
40	50	0.007

Unit: mm

■Straightness K
Shaft Outer Dia. g6·h5 (Hardening)

D	L		Straightness K
6 to 50	L ≤ 100		0.01 or Less
6 to 50	L > 100		(L/100) × 0.01 or Less

Unit: mm

■L Dimension Tolerance
Shaft Outer Dia. g6·h5 (Hardening)

L		L Dimension Tolerance
Over	or Less	L Dimension Tolerance
19	30	±0.2
30	120	±0.3
120	400	±0.5
400	1000	±0.8
1000	1500	±1.2

Unit: mm

■About hollow shaft wall thickness deviations and internal diameters

Depending on the material, hollow shafts will vary in wall thickness deviation (A–B) and internal diameter (d).

O.D. (D)	EN 1.3505 Equiv.		EN 1.4125 Equiv.
O.D. (D)	Wall Thickness Deviation	I.D.	Wall Thickness Deviation	I.D.
6	R0.3 or Less	2	—	—
8	0.4 or Less	3	1.5 or Less	3
10		4	4.0 or Less	4
12		6		5
13		7		5
16		10		6
20		14		8
25	0.6 or Less	16		10
30	1.0 or less	17		12
35	1.0 or less	19	—	—
40	1.5 or Less	20	—	—
50	1.5 or Less	26	—	—

Unit: mm

Deviation Value = A - B
I.D. = d

* Hollow shaft interior surfaces are not plated. Therefore, they may rust.

Notes on Hardening and Surface Treating

■Reduced Hardness around Machined Areas

·Although processing is performed after the base material is hardened, annealing may lower hardness of the machined area.
* Reduced Hardness: Approximately 10 to 40 HRC

■Reduced Hardness Range

·Approximately 10 mm from the machined area

(Example)

■Machining area where hardness has lowered due to annealing

·Threaded, Stepped, Retaining Ring Groove, Wrench Flats

■Reduced Hardness Condition of Tapped

The conditions for lower hardness for tapped differ depending on the material and selection conditions.

EN 1.4125 Equiv.: The hardness of the tapped part will decrease.
EN 1.3505 Equiv.: Under the following conditions, the hardness of the tapped will decrease.
·When M ≥ D/2, · RC thread, · One End Two Tapped Holes

■Effective Hardened Layer Depth of Hardening

The effective hardened layer depth varies depending on the external dimensions and materials.

O.D. D	Effective Hardened Layer Depth
	EN 1.3505 Equiv.	EN 1.4125 Equiv.
	EN 1.3505 Equiv.	EN 1.4125 Equiv.
6 to 10	0.5 or More	0.5 or More
12·13	0.7 or More	0.5 or More
16·20	0.7 or More	0.7 or More
25 to 50	1.0 or More	0.7 or More

■About hard chrome plating and plating layer of processed part

Hard chrome plating is applied after surface treatment of the base material, so there is no plating on the processed parts.
In the example below, only "///" area is treated with hard chrome plating.

Ex. Plating Remains: Stepped, Threaded Shaft, Set Screw Flat

/// Part: Plating Remains

Difference Between Shaft and Rotary Shaft

■ Basic Specifications

Specifications	Shafts		Rotary Shaft
Material	EN 1.3505 Equiv. EN 1.4125 Equiv.	EN 1.1191 Equiv. EN 1.4301 Equiv.	EN 1.1191 Equiv. EN 1.4301 Equiv.	EN 1.7220 Equiv.
Hardening	Induction Hardened	—	—	Hardness: 30 to 35 HRC
O.D. Tolerance	g6/h5	f8	g6/h9/h7	g6
Surface Treatment	No Plating Hard Chrome Plating Low Temperature Black Chrome Plating Electroless Nickel Plating (Surface Treatment Fully Plated Type)	Hard Chrome Plating	No Plating Black Oxide Electroless Nickel Plating	Black Oxide Electroless Nickel Plating

* Hard chrome plating leaves no plating layer on the machined part.

■ Alteration

Alterations	Shafts	Rotary Shaft
L Dimension Tolerance	L < 200⇒L±0.03 200 ≤ L < 500⇒L±0.05 L ≥ 500⇒L±0.1	L < 500⇒L±0.05 L ≥ 500⇒L±0.1 Not applicable when L ≥ 800
Wrench Flats	Can be specified up to 2 Locations	Can be specified up to 1 Location
Set Screw Flat	Can be specified up to 2 Locations	Can be specified up to 3 Locations
2 Set Screw Flats	Can be specified up to 2 Locations Angle Specified: Fixed	Can be specified up to 1 Location Angle Specified: Configurable in 15 degree Increments
V Groove	Can be specified up to 2 Locations	—
Keyway	Can be specified up to 2 Locations Processing of Stepped Part: Not Possible	Can be specified up to 4 Locations Processing of Stepped Part: Possible
Undercut	M6 to M30	M3 to M30
Tapped Depth	Possible	Possible
Retaining Ring Groove	Can be specified 2 Locations (It will be a retaining ring type instead of alterations)	2 locations on D part, 1 location each on stepped part can be combined
Slit Cam Groove	—	Can be specified up to 1 Location
Concentricity	—	Possible
Left-hand Thread / Thread	—	Possible
Slit Added	—	Can be specified up to 1 Location
C Chamfering Width	—	Possible

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Part Number
FPSPJAA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]
FPSPJAB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]
FPSPJAC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]
FPSPJAC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-QMC[0,3,4,5,6,8,15,17,20,25,30]-S[0-90/1]
FPSPJAC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-QMS[10,12,14,18]-S[0-90/1]
FPSPJAD-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-Q[2-50/1]
FPSPJAE-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-N[0,3,4,5,6,8,12,16,20,24,30]-Q[2-50/1]
FPSPJAF-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-U[1-1500/1]
FPSPJBA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]
FPSPJBB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-N[3,4,5,6,8,10,12,16,20,24,30]
FPSPJBC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]
FPSPJBC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-T[0-250/0.5]-QMC[0,3,4,5,6,8,15,17,20,25,30]-S[0-90/1]
FPSPJBC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-T[0-250/0.5]-QMS[10,12,14,18]-S[0-90/1]
FPSPJBD-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-T[0-250/0.5]-Q[2-50/1]
FPSPJBE-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-T[0-250/0.5]-N[0,3,4,5,6,8,12,16,20,24,30]-Q[2-50/1]
FPSPJBF-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-U[1-1500/1]
FPSPJCA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]
FPSPJCB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]-N[3,4,5,6,8,10,12,16,20,24,30]
FPSPJCC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]
FPSPJCC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]-T[0-250/0.5]-QMC[0,3,4,5,6,8,15,17,20,25,30]-S[0-90/1]
FPSPJCC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]-T[0-250/0.5]-QMS[10,12,14,18]-S[0-90/1]
FPSPJCD-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]-T[0-250/0.5]-Q[2-50/1]
FPSPJCE-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-Q[2-50/1]
FPSPJCF-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-B[0-90/1]-U[1-1500/1]
FPSPJDA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-P[2-50/1]
FPSPJDB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-P[2-50/1]
FPSPJDC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]-P[2-50/1]
FPSPJDC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-T[0-250/0.5]-QMC[0,3,4,5,6,8,15,17,20,25,30]-S[0-90/1]-P[2-50/1]
FPSPJDC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-T[0-250/0.5]-QMS[10,12,14,18]-S[0-90/1]-P[2-50/1]
FPSPJDD-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-T[0-250/0.5]-P[2-50/1]-Q[2-50/1]
FPSPJDE-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-T[0-250/0.5]-N[0,3,4,5,6,8,12,16,20,24,30]-P[2-50/1]-Q[2-50/1]
FPSPJDF-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-U[1-1500/1]-P[2-50/1]
FPSPJEA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-P[2-50/1]
FPSPJEB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-N[3,4,5,6,8,10,12,16,20,24,30]-P[2-50/1]
FPSPJEC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]-P[2-50/1]
FPSPJEC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-T[0-250/0.5]-QMC[0,3,4,5,6,8,15,17,20,25,30]-S[0-90/1]-P[2-50/1]
FPSPJEC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-T[0-250/0.5]-QMS[10,12,14,18]-S[0-90/1]-P[2-50/1]
FPSPJED-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-T[0-250/0.5]-P[2-50/1]-Q[2-50/1]
FPSPJEE-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-P[2-50/1]-Q[2-50/1]
FPSPJEF-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-F[0-250/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-U[1-1500/1]-P[2-50/1]
FPSPJFA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-H[1-1500/1]
FPSPJFB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-H[1-1500/1]
FPSPJFC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]-H[1-1500/1]
FPSPJFC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-QMC[0,3,4,5,6,8,15,17,20,25,30]-S[0-90/1]-H[1-1500/1]
FPSPJFC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-QMS[10,12,14,18]-S[0-90/1]-H[1-1500/1]
FPSPJFD-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-H[1-1500/1]-Q[2-50/1]
FPSPJFE-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-N[0,3,4,5,6,8,12,16,20,24,30]-H[1-1500/1]-Q[2-50/1]
FPSPJFF-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-H[1-1500/1]-U[1-1500/1]
FSPJAA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]
FSPJAB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]
FSPJAC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-N[3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]
FSPJAC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-QMC[0,3,4,5,6,8,15,17,20,25,30]-S[0-90/1]
FSPJAC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-QMS[10,12,14,18]-S[0-90/1]
FSPJAD-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-Q[2-50/1]
FSPJAE-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-T[0-250/0.5]-N[0,3,4,5,6,8,12,16,20,24,30]-Q[2-50/1]
FSPJAF-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-U[1-1500/1]
FSPJBA-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]
FSPJBB-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[3,4,5,6,8,10,12,16,20,24,30]-N[3,4,5,6,8,10,12,16,20,24,30]
FSPJBC-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[0,3,4,5,6,8,10,12,16,20,24,30]-T[0-250/0.5]-N[0,3,4,5,6,8,10,12,16,20,24,30]-S[0-90/1]
FSPJBD-D[6,8,10,12,13,16,20,25,30,35,40,50]-L[20-1500/0.5]-M[0,3,4,5,6,8,12,16,20,24,30]-T[0-250/0.5]-Q[2-50/1]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Basic Shape	Shaft end Shape (Left)	Shaft end Shape (Right)	[L] Length (Shaft) (mm)	Surface Treatment	[B] Length (thread) (mm)	[M] Size (thread - depth 2xM) (mm)	[F] Length (stud - offset - front side) (mm)	[QMC] Size (fine thread) (mm)	[QMS] Size (fine thread) (mm)	[H] (mm)	[P] Diameter (stepped - front side) (mm)	[Q] (mm)	[S] Length (thread) (mm)	[T] Length (stud - stepped - back side) (mm)	[U] Distance (retaining ring groove) (mm)	[N] Size (thread - depth 2xN) (mm)	[D] Diameter (Shaft - external) (mm)
-	1	9 Days	10	Hollow	Straight	Straight	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	-	-	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Straight	Internal thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	-	-	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Straight	External thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	-	-	-	0 ～ 90	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Straight	External thread	20 ～ 1500	Hard Chrome Plating	-	-	-	0 ～ 30	-	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Straight	External thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	10 ～ 18	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	Straight	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	-	-	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	Internal thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	-	-	2 ～ 50	-	0 ～ 250	-	0 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Straight	Retaining ring grooves	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	-	-	-	-	-	1 ～ 1500	-	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	Straight	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	-	-	-	-	-	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	Internal thread	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	-	-	-	-	-	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	External thread	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	-	-	-	-	-	-	0 ～ 90	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	External thread	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	-	0 ～ 30	-	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	External thread	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	-	-	10 ～ 18	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	Straight	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	-	-	-	-	-	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	Internal thread	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	-	-	-	-	-	2 ～ 50	-	0 ～ 250	-	0 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	Retaining ring grooves	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	-	-	-	-	-	-	-	-	1 ～ 1500	-	6 ～ 50
-	1	9 Days	10	Hollow	External thread	Straight	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	-	-	-	-	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow	External thread	Internal thread	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	-	-	-	-	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	External thread	External thread	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	-	-	-	-	-	0 ～ 90	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	External thread	External thread	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	0 ～ 30	-	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow	External thread	External thread	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	-	10 ～ 18	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	External thread	Straight	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	-	-	-	-	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	External thread	Internal thread	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	-	-	-	-	2 ～ 50	-	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	External thread	Retaining ring grooves	20 ～ 1500	Hard Chrome Plating	0 ～ 90	3 ～ 30	0 ～ 250	-	-	-	-	-	-	-	1 ～ 1500	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	Straight	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	-	-	-	2 ～ 50	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	Internal thread	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	-	-	-	2 ～ 50	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	External thread	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	-	-	-	2 ～ 50	-	0 ～ 90	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	External thread	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	0 ～ 30	-	-	2 ～ 50	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	External thread	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	-	10 ～ 18	-	2 ～ 50	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, Both Ends Stepped	Straight	Straight	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	-	-	-	2 ～ 50	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, Both Ends Stepped	Straight	Internal thread	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	-	-	-	2 ～ 50	2 ～ 50	-	0 ～ 250	-	0 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	Retaining ring grooves	20 ～ 1500	Hard Chrome Plating	-	-	0 ～ 250	-	-	-	2 ～ 50	-	-	-	1 ～ 1500	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	Straight	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	0 ～ 250	-	-	-	2 ～ 50	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	Internal thread	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	0 ～ 250	-	-	-	2 ～ 50	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	External thread	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	0 ～ 250	-	-	-	2 ～ 50	-	0 ～ 90	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	External thread	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	0 ～ 250	0 ～ 30	-	-	2 ～ 50	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	External thread	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	0 ～ 250	-	10 ～ 18	-	2 ～ 50	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, Both Ends Stepped	Internal thread	Straight	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	0 ～ 250	-	-	-	2 ～ 50	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, Both Ends Stepped	Internal thread	Internal thread	20 ～ 1500	Hard Chrome Plating	-	3 ～ 30	0 ～ 250	-	-	-	2 ～ 50	2 ～ 50	-	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	Retaining ring grooves	20 ～ 1500	Hard Chrome Plating	-	0 ～ 30	0 ～ 250	-	-	-	2 ～ 50	-	-	-	1 ～ 1500	-	6 ～ 50
-	1	9 Days	10	Hollow	Retaining ring grooves	Straight	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	1 ～ 1500	-	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Retaining ring grooves	Internal thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	1 ～ 1500	-	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Retaining ring grooves	External thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	1 ～ 1500	-	-	0 ～ 90	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Retaining ring grooves	External thread	20 ～ 1500	Hard Chrome Plating	-	-	-	0 ～ 30	-	1 ～ 1500	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Retaining ring grooves	External thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	10 ～ 18	1 ～ 1500	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Retaining ring grooves	Straight	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	1 ～ 1500	-	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Retaining ring grooves	Internal thread	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	1 ～ 1500	-	2 ～ 50	-	0 ～ 250	-	0 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Retaining ring grooves	Retaining ring grooves	20 ～ 1500	Hard Chrome Plating	-	-	-	-	-	1 ～ 1500	-	-	-	-	1 ～ 1500	-	6 ～ 50
-	1	9 Days	10	Hollow	Straight	Straight	20 ～ 1500	No Treatment	-	-	-	-	-	-	-	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Straight	Internal thread	20 ～ 1500	No Treatment	-	-	-	-	-	-	-	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Straight	External thread	20 ～ 1500	No Treatment	-	-	-	-	-	-	-	-	0 ～ 90	0 ～ 250	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Straight	External thread	20 ～ 1500	No Treatment	-	-	-	0 ～ 30	-	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Straight	External thread	20 ～ 1500	No Treatment	-	-	-	-	10 ～ 18	-	-	-	0 ～ 90	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	Straight	20 ～ 1500	No Treatment	-	-	-	-	-	-	-	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Straight	Internal thread	20 ～ 1500	No Treatment	-	-	-	-	-	-	-	2 ～ 50	-	0 ～ 250	-	0 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Straight	Retaining ring grooves	20 ～ 1500	No Treatment	-	-	-	-	-	-	-	-	-	-	1 ～ 1500	-	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	Straight	20 ～ 1500	No Treatment	-	3 ～ 30	-	-	-	-	-	-	-	-	-	-	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	Internal thread	20 ～ 1500	No Treatment	-	3 ～ 30	-	-	-	-	-	-	-	-	-	3 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow	Internal thread	External thread	20 ～ 1500	No Treatment	-	0 ～ 30	-	-	-	-	-	-	0 ～ 90	0 ～ 250	-	0 ～ 30	6 ～ 50
-	1	9 Days	10	Hollow, One End Stepped	Internal thread	Straight	20 ～ 1500	No Treatment	-	0 ～ 30	-	-	-	-	-	2 ～ 50	-	0 ～ 250	-	-	6 ～ 50

Surface Limits / Hardness - Linear Shafts

Limits of hardness and hardening depth

The linear shafts are processed after the base material has undergone inductive hardening. Therefore, the processed surfaces may result in a deviating hardness.
In the following example, you can view the affected areas of the linear shaft, which may be affected after processing by e.g. threads, level surfaces, key surfaces and transverse bores.

Limitation of linear shaft induction hardening

Cause for deviating hardness

The raw material of the linear shaft is treated via thermal induction before grinding. Thus, a configured linear shaft can be custom-made not only cost-effectively, but also with short delivery times. The linear shaft is hardened at the boundary layer (boundary layer hardening) of the liner shaft. The depth of the hardened boundary layer depends on the material used and the diameter of the linear shaft. The following table shows the hardening depth of linear shafts.
Coatings and plating are applied to the raw material after hardening and grinding. For more information, see Coatings of the Linear Shaft.

Boundary layer hardening of a linear shaft

Figure of boundary layer hardening: hardened boundary layer in light gray

Effective hardening depth of linear shafts

Outside diameter (D)	Effective hardening depth
	EN 1.1191 equiv.	EN 1.3505 equiv.	EN 1.4125 equiv.	EN 1.4301 equiv.
3	-	+0.5	+0.5	Without induction hardening
4	-
5	-
6 - 10	+0.3
12 - 13	+0.5	+0.7	+0.5
15 - 20			+0.7
25 - 50	+0.8	+1

Overview of the effective hardening depth as PDF

Coatings of the linear shaft

The surface coating is applied to the raw material before machining the linear shaft. Thanks to their coating, the usable surface or work surface of the linear shaft is not only protected against corrosion but also against wear.
Machined positions of the linear shafts, such as plane surfaces or threads, may be uncoated, as they are added afterwards. This can lead to the machined surfaces being corroded in a linear shaft made of steel. If the linear shaft is used in a corrosive environment, it is recommended to use a stainless steel linear shaft.
The following figure shows the areas of the linear shaft that are coated (crosshatched).

Surface coating after processing the linear shaft

Figure: Coating of linear shafts

You can find further information on surface treatment and hardness in this PDF .

General Information - Linear Shafts

Linear Shaft Selection Details

- Material: steel, stainless steel

- Coating/plating: uncoated, hard chrome plated, LTBC coated, chemically nickel-plated

- Heat treatment: untreated, inductively hardened

- ISO tolerances: h5, k5, g6, h6, h7, f8

- Precision classes: perpendicularity 0.03, concentricity (with thread and increments) Ø0.02, perpendicularity 0.20, concentricity (thread and stepper) Ø0.10

- Linearity/roundness: depends on diameter, here for the PDF

Description / basics of the linear shaft

Linear shafts are steel shafts that perform guiding tasks in combination with linear bearings, such as plain bearing bushings or linear ball bushings. Linear shaft holding functions can be adopted from shaft holders or linear ball bearing adapters. Most linear shafts are heat-treated (induction hardened) solid shafts. A special design of linear shafts is the hollow shaft, which is also called tubular shaft. Inductively hardened linear shafts have a high surface hardness and a tough core. The achievable surface hardness is approx. 55-58 HRC (see information on hardening depth). Linear shafts made of stainless steels can generally not be hardened. Therefore, these steel shafts should be chrome plated to protect them from wear.

Materials

Linear shafts are mainly hardened steel shafts. In addition to the selected heat treatment, the steel used in particular imparts its properties to the linear shaft, although it is a hollow shaft or a solid shaft. Therefore, special aspects such as hardness, corrosion and wear must be considered when selecting the shaft steel.

Coatings

To protect linear shafts from corrosion, the surface can be chemically nickel-plated. As an alternative to chemical nickel-plating, steel shafts can also be coated with LTBC. The LTBC coating is an anti-corrosive surface coating and it is a low-reflection coating, made of a 5 μm thick film of fluoropolymer, which in essence is a black film. In addition, the LTBC coating is resistant to bursting pressure by extreme or repeated bending. LTBC-coated linear shafts are thus particularly suitable for locations where corrosion or light reflections are undesirable. Linear shafts that require particularly high surface hardness and wear resistance can be hard chrome plated.

Function

The form and function of linear shafts differ from linear guiderails. Linear guiderails are square rails that work in combination with carriers (rotary elements, carriages) according to the rolling or sliding principle. Linear shafts on the other hand are precision-ground round steel shafts that take on a linear guide function in conjunction with linear ball bushings or plain bearing bushings (maintenance-free bushings).

Areas of Application

Linear shafts are intended for axial motion. Whether horizontal or vertical linear motion, all linear motions can be implemented with linear shafts. Common applications are stroke mechanisms and other applications with high demands on smoothness, precision and service life. Linear shafts can therefore be used in almost all industries of plant construction and mechanical engineering. Linear shafts are often found in 3D printers, metering equipment, measuring devices, positioning devices, alignment devices, bending devices and sorting equipment.

Instructions for Use / Installation - Linear Shafts

For product selection, please observe the linear shaft tolerances (e.g. h5, k5, g6, h6, h7, f8) in conjunction with the diameter tolerance of the plain bearing bushing (sliding bearing) after pressing in or the running circle diameter of the linear ball bearing (ball bushing).

Diameter change of linear ball bushings after pressing

Inner diameter of linear ball bushings or ball bushings

Shaft Fasteners

Application Example of a Linear Shaft - Linear Shafts with Linear Ball Bushings - Linear Shafts with Shaft Holder

Application Example of a Linear Shaft Application Example - Linear Shaft with Linear Ball Bearings - Linear Ball Bearings with an Adjusting Ring

Application Example of a Linear Shaft - Linear Shaft with Shaft Holder

Application Example of a Linear Shaft - Linear Shaft with Circlip Groove - Linear Shaft with Circlip

Application Example of a Linear Shaft - Linear Shaft with Holding Washer

Application Example of a Linear Shaft - Linear Thread - Outer Threaded Linear Shaft - Linear Threaded with inner and outer threads

Application Example of a Linear Shaft - Cross Bore Linear Shaft - Inner Thread Linear Shaft

Application Example of a Linear Shaft - Cross Bore Linear Shaft - Outer Thread Linear Shaft

Supplementary Article

Shaft holder

Adjusting rings/clamping rings

Product range of adjusting rings - product range of clamping rings

Linear ball bearing

Plain bearing bushings

Product range of sliding bearing bushings - plain bearing with housing

Ball guides

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

Products homepage

Basic information

Material	EN 1.3505 Equiv.	Heat Treatment	Induction Hardened	ISO Tolerance	g6
Hardness	Induction Hardening (58HRC~)

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Basic Attributes

Basic Shape
- Hollow
- Hollow, One End Stepped
- Hollow, Both Ends Stepped
Clear
Shaft end Shape (Left)
- Straight
- Internal thread
- External thread
- Retaining ring grooves
Clear
Shaft end Shape (Right)
- Straight
- Internal thread
- External thread
- Retaining ring grooves
Clear
[L] Length (Shaft)(mm)
[20-1500/0.5mm Unit(s)]
Clear
Surface Treatment
- No Treatment
- Hard Chrome Plating
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[B] Length (thread)(mm)
[0-90/1mm Unit(s)]
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[M] Size (thread - depth 2xM)(mm)
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[F] Length (stud - offset - front side)(mm)
[0-250/0.5mm Unit(s)]
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[QMC] Size (fine thread)(mm)
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[QMS] Size (fine thread)(mm)
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[H](mm)
[1-1500/1mm Unit(s)]
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[P] Diameter (stepped - front side)(mm)
[2-50/1mm Unit(s)]
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[Q](mm)
[2-50/1mm Unit(s)]
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[S] Length (thread)(mm)
[0-90/1mm Unit(s)]
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[T] Length (stud - stepped - back side)(mm)
[0-250/0.5mm Unit(s)]
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[U] Distance (retaining ring groove)(mm)
[1-1500/1mm Unit(s)]
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[N] Size (thread - depth 2xN)(mm)
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[D] Diameter (Shaft - external)(mm)
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Type
- FPSPJAA
- FPSPJAB
- FPSPJAC
- FPSPJAD
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- FPSPJBB
- FPSPJBC
- FPSPJBD
- FPSPJBE
- FPSPJBF
- FPSPJCA
- FPSPJCB
- FPSPJCC
- FPSPJCD
- FPSPJCE
- FPSPJCF
- FPSPJDA
- FPSPJDB
- FPSPJDC
- FPSPJDD
- FPSPJDE
- FPSPJDF
- FPSPJEA
- FPSPJEB
- FPSPJEC
- FPSPJED
- FPSPJEE
- FPSPJEF
- FPSPJFA
- FPSPJFB
- FPSPJFC
- FPSPJFD
- FPSPJFE
- FPSPJFF
- FSPJ□□
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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.