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Technical Drawing - Linear Shafts

 

Hollow with Wrench Flats/Both Ends Tapped:Related Image

 

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

 

TypeMaterialHardnessSurface Treatment
Both Ends TappedBoth Ends Tapped with Wrench Flats
SPJWSPWREN 1.3505 Equiv.Effective Hardened Depth of Induction Hardening >>P.112
EN 1.3505 Equiv. 58HRC~
EN 1.4037 Equiv. 56HRC~
-
SSPJWSSPWREN 1.4037 Equiv.
PSPJWPSPWREN 1.3505 Equiv.Hard Chrome Plating
Plating Hardness: HV750 ~
Plating Thickness: 5µ or More
RSPJWRSPWREN 1.3505 Equiv.LTBC Plating

 

Further specifications can be found under the tab More Information.

 

Composition of a Product Code - Linear Shafts

 

• Both Ends Tapped Hollow Shafts
Part Number-L-M-N-SC
SPJW20
SPWR30
-
-
500
680
-
-
M16
M20
-
-
N16
N20

-

SC10

 

Alterations - Linear Shafts


Hollow with Wrench Flats/Both Ends Tapped:Related Image

You find further options in detail under Option Overview.

 

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+0.5Without 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

Product range of shaft holders

 

Adjusting rings/clamping rings

Product range of adjusting rings - product range of clamping rings

 

Linear ball bearing

Product range of linear ball bearings - product range of ball sleeves - linear ball bearing with housing

 

Plain bearing bushings

Product range of sliding bearing bushings - plain bearing with housing

 

Ball guides

Ball guide product range

 

Industrial Applications

 

3D printer industry
3D printer industry
Automotive industry
Automotive industry
Pharmaceutical industry
Pharmaceutical industry
Packaging industry
Packaging industry

  

Part Number:  

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Part Number
PSPJW6-[20-600/1]-M3-N3
PSPJW8-[20-800/1]-M[4,​5]-N[4,​5]
PSPJW10-[20-800/1]-M[5,​6]-N[5,​6]
PSPJW12-[32-1000/1]-M8-N8
PSPJW12-[32-1000/1]-M8-NT1
PSPJW12-[32-1000/1]-MT1-N8
PSPJW12-[32-1000/1]-MT1-NT1
PSPJW13-[40-1000/1]-M10-N10
PSPJW13-[40-1000/1]-M10-NT1
PSPJW13-[40-1000/1]-MT1-N10
PSPJW13-[40-1000/1]-MT1-NT1
PSPJW16-[48-1200/1]-M12-N12
PSPJW16-[48-1200/1]-M12-NT2
PSPJW16-[48-1200/1]-MT2-N12
PSPJW16-[48-1200/1]-MT2-NT2
PSPJW20-[64-1200/1]-M16-N16
PSPJW20-[64-1200/1]-M16-NT3
PSPJW20-[64-1200/1]-MT3-N16
PSPJW20-[64-1200/1]-MT3-NT3
PSPJW25-[80-1200/1]-M20-N20
PSPJW30-[80-1500/1]-M20-N20
PSPJW35-[96-1500/1]-M24-N24
PSPJW40-[96-1500/1]-M[24,​30]-N[24,​30]
PSPJW50-[120-1500/1]-M30-N30
PSPWR6-[20-600/1]-M3-N3-SC[6-586/1]
PSPWR8-[20-800/1]-M[4,​5]-N[4,​5]-SC[8-784/1]
PSPWR10-[20-800/1]-M[5,​6]-N[5,​6]-SC[10-782/1]
PSPWR12-[32-1000/1]-M8-N8-SC[16-972/1]
PSPWR12-[32-1000/1]-M8-NT1-SC[16-972/1]
PSPWR12-[32-1000/1]-MT1-N8-SC[16-972/1]
PSPWR12-[32-1000/1]-MT1-NT1-SC[16-972/1]
PSPWR13-[40-1000/1]-M10-N10-SC[20-970/1]
PSPWR13-[40-1000/1]-M10-NT1-SC[20-970/1]
PSPWR13-[40-1000/1]-MT1-N10-SC[20-970/1]
PSPWR13-[40-1000/1]-MT1-NT1-SC[20-970/1]
PSPWR16-[48-1200/1]-M12-N12-SC[24-1166/1]
PSPWR16-[48-1200/1]-M12-NT2-SC[24-1166/1]
PSPWR16-[48-1200/1]-MT2-N12-SC[24-1166/1]
PSPWR16-[48-1200/1]-MT2-NT2-SC[24-1166/1]
PSPWR20-[64-1200/1]-M16-N16-SC[32-1158/1]
PSPWR20-[64-1200/1]-M16-NT3-SC[32-1158/1]
PSPWR20-[64-1200/1]-MT3-N16-SC[32-1158/1]
PSPWR20-[64-1200/1]-MT3-NT3-SC[32-1158/1]
PSPWR25-[80-1200/1]-M20-N20-SC[40-1150/1]
PSPWR30-[80-1500/1]-M20-N20-SC[0-1485/1]
PSPWR35-[96-1500/1]-M24-N24-SC[0-1485/1]
PSPWR40-[96-1500/1]-M[24,​30]-N[24,​30]-SC[0-1480/1]
PSPWR50-[120-1500/1]-M30-N30-SC[0-1480/1]
Part NumberMinimum order quantityVolume Discount
Standard
Shipping Days
?
RoHS[D] Diameter (Shaft)
(mm)
[L] Length (Shaft)
(mm)
Material Surface Treatment Hardness [SC] Distance (wrench flat)
(mm)
[MT] Size (thread [NT] Size (thread [M] Size (thread
(mm)
[N] Size (thread
(mm)
1 7 Days 10620 ~ 600[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---33
1 7 Days 10820 ~ 800[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---4 ~ 54 ~ 5
1 7 Days 101020 ~ 800[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---5 ~ 65 ~ 6
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---88
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)--18-
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-1--8
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-11--
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---1010
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)--110-
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-1--10
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-11--
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---1212
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)--212-
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-2--12
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-22--
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---1616
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)--316-
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-3--16
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)-33--
1 7 Days 102580 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---2020
1 8 Days 103080 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---2020
1 7 Days 103596 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---2424
1 7 Days 104096 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---24 ~ 3024 ~ 30
1 7 Days 1050120 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)---3030
1 7 Days 10620 ~ 600[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)6 ~ 586--33
1 7 Days 10820 ~ 800[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)8 ~ 784--4 ~ 54 ~ 5
1 7 Days 101020 ~ 800[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)10 ~ 782--5 ~ 65 ~ 6
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)16 ~ 972--88
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)16 ~ 972-18-
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)16 ~ 9721--8
1 7 Days 101232 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)16 ~ 97211--
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)20 ~ 970--1010
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)20 ~ 970-110-
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)20 ~ 9701--10
1 7 Days 101340 ~ 1000[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)20 ~ 97011--
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)24 ~ 1166--1212
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)24 ~ 1166-212-
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)24 ~ 11662--12
1 7 Days 101648 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)24 ~ 116622--
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)32 ~ 1158--1616
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)32 ~ 1158-316-
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)32 ~ 11583--16
1 7 Days 102064 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)32 ~ 115833--
1 7 Days 102580 ~ 1200[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)40 ~ 1150--2020
1 7 Days 103080 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)0 ~ 1485--2020
1 7 Days 103596 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)0 ~ 1485--2424
1 8 Days 104096 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)0 ~ 1480--24 ~ 3024 ~ 30
1 7 Days 1050120 ~ 1500[Alloyed Steel] EN 1.3505 Equiv.Hard Chrome PlatedInduction Hardening (58HRC~)0 ~ 1480--3030

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Back to Linear Shaft Category

Technical Drawing - Linear Shafts

 

Hollow with Wrench Flats/Both Ends Tapped:Related Image

 

Specification Tables - Linear Shafts

 

Overview of the shaft designs as PDF

 

■Both Ends Tapped Hollow Shafts
Part NumberL
1mm Increment
M (Coarse), N (Coarse)
Selection
D Tol.dC
TypeD
Both Ends Tapped Hollow Shafts
SPJW
SSPJW (* marked sizes only)
PSPJW
620~6003    -0.004
-0.012
20.5 or Less
*820~800 (300)4*5   -0.005
-0.014
3(3)0.5 or Less
*1020~800 (400)5*6   -0.005
-0.014
4(4)0.5 or Less
*1232~1000 (500) *8*T1 (RC1/8)-0.006
-0.017
6(5)0.5 or Less
*1340~1000 (500) *10*T1 (RC1/8)-0.006
-0.017
7(5)0.5 or Less
*1648~1200 (600) *12*T2 (RC1/4)-0.006
-0.017
10(6)0.5 or Less
*2064~1200 (800) *16*T3 (RC3/8)-0.007
-0.020
14(8)1.0 or Less
*2580~1200 (1000) *20   -0.007
-0.020
16(10)1.0 or Less
*3080~1500 (1000) *20   -0.007
-0.020
17(12)1.0 or Less
3596~1500  24  -0.009
-0.025
191.0 or Less
4096~1500  2430 -0.009
-0.025
201.0 or Less
50120~1500   30 -0.009
-0.025
261.0 or Less
 
Part NumberL
1mm Increment
M (Coarse), N (Coarse)
Selection
D Tol.dC
TypeD
Both Ends Tapped Hollow Shafts
LTBC Plating
RSPJW
620~5003    -0.004
-0.012
20.5 or Less
820~50045   -0.005
-0.014
30.5 or Less
1020~50056   -0.005
-0.014
40.5 or Less
1232~500 8T1 (RC1/8)-0.006
-0.017
60.5 or Less
1340~500 10T1 (RC1/8)-0.006
-0.017
70.5 or Less
1648~500 12T2 (RC1/4)-0.006
-0.017
100.5 or Less
2064~500 16T3 (RC3/8)-0.007
-0.020
141.0 or Less
2580~500 20   -0.007
-0.020
161.0 or Less
3080~500 20   -0.007
-0.020
171.0 or Less
Part NumberL
1mm Increment
M (Coarse), N (Coarse)
Selection
Wrench Flats DimensionsD Tol.dC
TypeDSCW1
Both Ends Tapped Hollow Shafts
Shafts with Wrench Flats
SPWR
SSPWR (* marked sizes only)
PSPWR
620~6003    SC=1mm Increment
When D≤25
SC+1≤L-Nx2
SC≥Mx2
When D≥30
SC+1≤L
SC≥0


Details of Wrench Flats
  P.112
58-0.004
-0.012
20.5 or Less
* 820~800 (300)4* 5   78-0.005
-0.014
3 (3)0.5 or Less
* 1020~800 (400)5* 6   88-0.005
-0.014
4 (4)0.5 or Less
* 1232~1000 (500) * 8*T1 (RC1/8)1010-0.006
-0.017
6 (5)0.5 or Less
* 1340~1000 (500) * 10*T1 (RC1/8)1110-0.006
-0.017
7 (5)0.5 or Less
* 1648~1200 (600) * 12*T2 (RC1/4)1410-0.006
-0.017
10 (6)0.5 or Less
* 2064~1200 (800) * 16*T3 (RC3/8)1710-0.007
-0.020
14 (8)1.0 or Less
* 2580~1200 (1000) * 20   2210-0.007
-0.020
16 (10)1.0 or Less
* 3080~1500 (1000) * 20   2715-0.007
-0.020
17 (12)1.0 or Less
3596~1500  24  3015-0.009
-0.025
191.0 or Less
4096~1500  2430 3620-0.009
-0.025
201.0 or Less
50120~1500   30 4120-0.009
-0.025
261.0 or Less
 
Part NumberL
1mm Increment
M (Coarse), N (Coarse)
Selection
Wrench Flats DimensionsD Tol.dC
TypeDSCW1
Both Ends Tapped Hollow Shafts
Shafts with Wrench Flats
LTBC Plating
RSPWR
620~5003    SC=1mm Increment
When D≤25
SC+1≤L-Nx2
SC≥Mx2
When D≥30
SC+1≤L
SC≥0


Details of Wrench Flats
  P.112
58-0.004
-0.012
20.5 or Less
820~50045   78-0.005
-0.014
30.5 or Less
1020~50056   88-0.005
-0.014
40.5 or Less
1232~500 8T1 (RC1/8)1010-0.006
-0.017
60.5 or Less
1340~500 10T1 (RC1/8)1110-0.006
-0.017
70.5 or Less
1648~500 12T2 (RC1/4)1410-0.006
-0.017
100.5 or Less
2064~500 16T3 (RC3/8)1710-0.007
-0.020
141.0 or Less
2580~500 20   2210-0.007
-0.020
161.0 or Less
3080~500 20   2715-0.007
-0.020
171.0 or Less
When T1, T2 or T3 is selected as M or N, tapered thread machining is applied. (Ordering Code: MT1, NT1) L requires Mx2+Nx2≤L.
When Mx25+4+Nx2.5+4≤L, tap pilot holes may go through. When L≤Mx2+Nx2, effective depth of larger diameter tap has priority.
Only * marked D, M and N dimensions are applicable to Stainless Steel Shafts. L and d dimensions in ( ) are applicable.

 

Alterations - Linear Shafts


Hollow with Wrench Flats/Both Ends Tapped:Related Image

You find further options in detail under Option Overview.

Basic information

Basic Shape Hollow Shaft end Shape (Left) Tapped Shaft end Shape (Right) Tapped
Heat Treatment Induction Hardened ISO Tolerance g6

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.

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