Linear shafts / steel / surface hardened, nickel plated / end forms selectable

Linear shafts / steel / surface hardened, nickel plated / end forms selectable

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Part Number

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Dimensional Drawing

Shafts - Surface Treatment Fully Plated: Related Image

Straight Type PSFCJ

Both Ends Tapped PSFCW

One End Tapped PSFCT

One End Stepped, Tapped PSFCG

One End Stepped, Both Ends Tapped PSFCA

Shafts - Surface Treatment Fully Plated: Related Image

One End Threaded PSFCN

Both Ends Threaded PSFCM

One End Threaded with O.D. same as Shaft O.D. PSFCQ

Both Ends Threaded with O.D. same as Shaft O.D. PSFCL

One End Tapered, One End Tapped PSFTCA

One End Tapered, One End Threaded PSFTCB

[ ! ] The dimension tolerances for L, F, and T conform to JIS B 0405 Class m.

[!] Use "Oil-Free Bushings" for sliding applications.
(Using rolling ball elements such as linear ball bushings on electroless nickel plated shafts may result in flaking of the nickel plating layer.)

[ ! ] Annealing may lower hardness at shaft end machined areas (effective thread length + approx. 10 mm).
[ ! ] Shafts may have centering holes at end faces depending on shapes.

 

TypeD Tol.[M] Material[H] Hardness[S]Surface Treatment
StraightOne End TappedBoth Ends TappedOne End Stepped and TappedOne End Stepped, Both Ends Tapped
PSFCJPSFCTPSFCWPSFCGPSFCAg6EN 1.3505 Equiv.Induction Hardened
EN 1.3505 Equiv. 58 HRC or more
Electroless Nickel Plating
TypeD Tol.[M] Material[H] Hardness[S]Surface Treatment
One End ThreadedBoth Ends ThreadedOne End Threaded,
O.D. same as Shaft O.D.
Both Ends Threaded,
O.D. same as Shaft O.D.
One End Tapered,
One End Tapped
One End Tapered,
One End Threaded
PSFCNPSFCMPSFCQPSFCLPSFTCAPSFTCBg6EN 1.3505 Equiv.Induction Hardened
EN 1.3505 Equiv. 58 HRC or more
Electroless Nickel Plating

Specification Table

Part NumberLFPMN
PSFCJ2075        
PSFCT20525    M8  
PSFCW20525    M8N8
PSFCG20400F25P16M10  
PSFCA20400F25P16M10N10
Part NumberLFBPTSQJM
PSFCN20950F50B30P10          
PSFCM20300F30B20P8T20S15Q10    
PSFCQ12500  B20            
PSFCL12500  B20    S20      
PSFTCA20350            J15M6
PSFTCB20350F40B30P10      J10  
■Straight Type, One End Tapped Type, Both Ends Tapped Type
Part Number1 mm IncrementsSelectionC
TypeDLM
(Coarse)
N (Coarse) (Both Ends Tapped Only)
Straight Type
PSFCJ

One End Tapped
PSFCT

Both Ends Tapped
PSFCW
820 to 800345        345        0.5
or Less
1020 to 8003456       3456       
1220 to 1000 4568       4568      
1525 to 1000 456810      456810     
2030 to 1000 45681012     45681012    1.0
or Less
2535 to 1000 4568101216    4568101216   
3035 to 1000   6810121620     6810121620  
3535 to 1000    81012162024     81012162024 
4050 to 1000     101216202430     101216202430
5065 to 1000      1216202430      1216202430
[!] One End Tapped Type The overall length L requires M × 2 ≤ L. When M × 2.5 + 4 ≥ L, tap pilot holes go through.
[!] Both Ends Tapped The overall length L requires M × 2 + N × 2 ≤ L. When M × 2 + N × 2 = L, the tapped does not go through.
When M × 2.5 + 4 + N × 2.5 + 4 ≥ L, the tap pilot hole is through, and the priority is given to the large tap effective length, so the small tap effective length becomes shorter.

■One End Stepped and Tapped, One End Stepped and Both Ends Tapped
Part Number1 mm IncrementsSelection(Y)
Max.
RC
TypeDLFPM
(Coarse)
N (Coarse) (for One End Stepped, Both Ends Tapped Type only)
One End Stepped and Tapped
PSFCG

One End Stepped
Both Ends Tapped
PSFCA
825 to 7982 ≤ F ≤ P × 463          345        8000.4
or Less
0.5
or Less
1025 to 7986 to 8345        3456       800
1225 to 9986 to 103456        4568      1000
1525 to 9986 to 133456810      456810     1000
2025 to 9988 to 17 45681012     45681012    10001.0
or Less
2525 to 9988 to 22 4568101216    4568101216   1000
3025 to 9989 to 27  5681012162024    6810121620  1000
3525 to 9989 to 32  5681012162024     81012162024 10000.5
or Less
4025 to 99811 to 37   68101216202430     1012162024301000
5025 to 99811 to 47   68101216202430      12162024301000
[!] One End Stepped and Tapped P dimensions require M + 3 ≤ P. Overall length (Y) requires M × 2 ≤ (Y). When M × 2.5 + 4 ≥ (Y), tap pilot holes go through.
[!] One End Stepped, Both Ends Tapped P dimension requires M + 3 ≤ P. Overall length (Y) requires M × 2 + N × 2 ≤ (Y). When M × 2 + N × 2 = (Y), the tapped does not go through.
When M × 2.5 + 4 + N × 2.5 + 4 ≥ (Y), the tap pilot hole is through, and the priority is given to the large tap effective length, so the small tap effective length becomes shorter.
■One End Threaded, Both Ends Threaded
Part Number1 mm IncrementsP (Coarse), Q (Coarse)
Applicable to Both Ends Threaded only
(Y)
Max.
RC
TypeDLF·T (for Both Ends Threaded only)B·S (for Both Ends Threaded only)
One End Threaded
PSFCN

Both Ends Threaded
PSFCM
825 to 7982 ≤ F ≤ P × 5(When P, Q ≤ 6)
B (S) ≤ F-2

(When P, Q = 8, 10)
B (S) ≤ F-3

(P·Q ≥ 12)
B (S) ≤ F-5

[ ! ] B (S) ≥ Pitch × 3
3456       8000.4
or Less
0.5
or Less
1025 to 798 4568      800
1225 to 998  56810     1000
1525 to 998  5681012    10001.0
or Less
2025 to 998   68101216   1000
2525 to 998    81012162024 1000
3025 to 998    81012162024 1000
3525 to 998     10121620243010000.5
or Less
4025 to 998      12162024301000
5025 to 998       162024301000

■One End Threaded with O.D. same as Shaft O.D Both Ends Threaded with O.D. same as Shaft O.D.
Part Number1 mm IncrementsM
(Coarse)
(Y)
Max.
C
TypeDLB·S (for Both Ends Threaded only)
One End Threaded
PSFCQ

Both Ends Threaded
PSFCL
825 to 7937 to 4088000.5
or Less
1025 to 7958 to 5010800
1225 to 9919 to 60121000
2025 to 98713 to 1002010001.0
or Less
3025 to 98218 to 150301000
[ ! ] For Shafts 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) - (Pitch × 2).

■One End Tapered, One End Tapped One End Tapered, One End Threaded
Part Number1 mm IncrementsP (Coarse)
Applicable to Threaded only
M (Coarse)
(for Tapped type only)
1 mm Increments(Y)
Max.
RC
TypeDLF (for Threaded Type only)B (for Threaded Type only)J
One End Tapered, One End Tapped
PSFTCA

One End Tapered, One End Threaded
PSFTCB
825 to 5002 ≤ F ≤ P × 5(When P ≤ 6)
B ≤ F-2
(When P = 8, 10)
B ≤ F-3
(When P ≥ 12)
B ≤ F−5
(W/o Threads)
B = 0
3456      345     5 to 105100.4
or Less
0.5
or Less
1025 to 500 4568     3456    5 to 14510
1225 to 500  56810     4568   5 to 18510
1525 to 500  5681012    4568   10 to 24510
2025 to 500   68101216   45681012 10 to 325101.0
or Less
3025 to 500    81012162024 456810121610 to 32510
[ ! ] L dimension requires L - J ≥ 20.

■Details of Thread Section C Chamfering

Thread
Nominal M
Pitch
P
Chamfering C
(Reference Value)
30.500.50
40.700.75
50.800.75
61.001.00
81.251.25
101.501.50
121.751.75
162.002.00
202.502.50
243.003.00
303.503.50
C chamfering at Thread Tip

Alteration Details

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

 

■Straight, One End Tapped, Both Ends Tapped, One End Stepped and Tapped, One End Stepped and Both Ends Tapped

Alteration CodeAlteration Details Fixed DimensionApplicable Conditions Ordering Example
LKC

Change L tolerance to a higher precision level

 

Shafts - Surface Treatment Fully Plated   Related Image 1_Alterations Details

·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 to One End Threaded/Shafts with O.D. same as Shaft O.D.
PSFCW20-525.5-M8-N8-LKC
SC

Wrench Flat at One Location

Shafts - Surface Treatment Fully Plated   Related Image 2_Alterations Details

DWℓ1 DWℓ1
878 252210
108 302715
121010 3530
1513 403620
2017 5041
[ ! ]SC = 1 mm Increments
[ ! ]SC+ℓ1 ≤ L
[ ! ]SC ≥ 0
PSFCW20-525-M8-N8-SC5
FC

Set Screw Flat at One Location

Shafts - Surface Treatment Fully Plated   Related Image 3_Alterations Details

Dh
8 to 151
20 to 402
503
[ ! ]FC, E = 1 mm Increments
[ ! ]FC ≤ D × 3
[ ! ] When 1.5 × D < FC, FC ≤ L/2
[ ! ]E = 0 or E ≥ 2
PSFCW20-525-M8-N8-FC10-E8
MSC
NSC

Change Tapped Thread to Fine Thread

Shafts - Surface Treatment Fully Plated   Related Image 4_Alterations Details

D·PMSC·NSC
128    
15810   
208101214 
25 to 35810121418
40 10121418
50  121418
Pitch1.01.251.5
[ ! ]Applicable to D = 12 or more

[NG] Not available in combination with MD, ND
PSFCW20-525-MSC14-NSC14
 

■One End Threaded, Both Ends Threaded, One End Threaded with O.D. same as Shaft O.D., Both Ends Threaded with O.D. same as Shaft O.D., One End Tapered and One End Tapped, One End Tapered and One End Threaded

Alteration CodeAlteration Details Fixed DimensionApplicable Conditions Ordering Example
LKC

Change L tolerance to a higher precision level

 

Shafts - Surface Treatment Fully Plated   Related Image 5_Alterations Details

·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 - P ≤ 2 with One End Threaded
[NG] Not applicable to Shafts with O.D. same as Shaft O.D.
PSFCN30-250.5-F40-B30-P10-LKC
SC

Wrench Flat at One Location

Shafts - Surface Treatment Fully Plated   Related Image 6_Alterations Details

DWℓ1 DWℓ1
878 252210
108 302715
121010 3530
1513 403620
2017 5041
[ ! ]SC = 1 mm Increments
[ ! ]SC+ℓ1 ≤ L
[ ! ]SC ≥ 0
PSFCN30-250-F40-B30-P10-SC5
FC

Set Screw Flat at One Location

Shafts - Surface Treatment Fully Plated   Related Image 7_Alterations Details

Dh
8 to 151
20 to 402
503
[ ! ]FC, E = 1 mm Increments
[ ! ]FC ≤ D × 3,
[ ! ] When 1.5 × D < FC, FC ≤ L/2
[ ! ]E = 0 or E ≥ 2

[NG] Not applicable to Tapered Shafts
PSFCN30-250-F40-B30-P10-FC10-E8
MSC

Change Tapped Thread to Fine Thread

Shafts - Surface Treatment Fully Plated   Related Image 8_Alterations Details

D·PMSC·NSC
128    
15810   
208101214 
25 to 35810121418
40 10121418
50  121418
Pitch1.01.251.5
[ ! ] Applicable to One End Tapped, One End Stepped and Tapped
[ ! ] Specify One End Tapped and One End Stepped and Tapped based on the D dimension and P dimension respectively.
PSFCT20-350-MSC12
PC
QC

Undercut

Shafts - Surface Treatment Fully Plated   Related Image 9_Alterations Details

·Coarse Threads

·Combined with Fine Thread Alterations

P
Q
PC
QC
64.4
86.0
107.7
129.4
1613.0
2016.4
2419.6
3025.0
PMC
QMC
PC
QC
64.8
86.4
108.4
1210.4
1513.4
1715.4
2018.4
2522.7
3022.7
PMC
QMC
PC
QC
108
129.7
1411.7
1815.7
[!] Undercut Width = F (T) - B (S)
[ ! ] Applicable to One End / Both Ends (PSFCN, PSFCM) Threaded Type only

[NG] Not applicable to M3 to M5
SFAM30-300-F40-B30-P20-T50-S40-Q16-PC-QC
PMC
PMS
QMC
QMS

Change Thread to Fine Thread

Shafts - Surface Treatment Fully Plated   Related Image 10_Alterations Details

DPMC·QMCPMS·QMS
83456            
10 4568           
12  56810      10   
15  5681012     1012  
20   6810121517   10121418
25    81012151720  10121418
30    8101215172025 10121418
35     1012151720253010121418
40      121517202530 121418
50       1517202530  1418
Pitch0.350.50.751.01.51.251.5
[ ! ]Applicable to One End Threaded Type only

[Bearing Nut Fine Thread Alteration]
Specify "PMC" for the left end, and "QMC" for the right end

[Cylinder Fine Thread Alteration]
Specify "PMS" for the left end, and "QMS" for the right end
PSFCN20-300-F30-B20-PMC15

Circularity (M), Straightness (K), L Dimension Tolerance, Perpendicularity

Shafts - Surface Treatment Fully Plated   Related Image 1_Circularity

■Straightness Measurement Method

Shafts - Surface Treatment Fully Plated   Related Image 2_Circularity
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 (Hardening)
DCircularity M
Overor Less
7130.004
13200.005
20400.006
40500.007
Unit: mm
■Straightness K
Shaft Outer Dia. g6 (Hardening)
DLStraightness K
8 to 50L ≤ 1000.01 or Less
L > 100(L/100) × 0.01 or Less
Unit: mm
■L Dimension Tolerance
Shaft Outer Dia. g6 (Hardening)
LL Dimension
Tolerance
Overor Less
2430±0.2
30120±0.3
120400±0.5
4001000±0.8
Unit: mm

■ Concentricity and Perpendicularity

Shafts - Surface Treatment Fully Plated   Related Image 1_Concentricity and Perpendicularity
Shafts - Surface Treatment Fully Plated   Related Image 2_Concentricity and Perpendicularity
Shafts - Surface Treatment Fully Plated   Related Image 3_Concentricity and Perpendicularity

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)

Shafts - Surface Treatment Fully Plated   Related Image 1_Reduced Hardness Range
 

■Machining area where hardness has lowered due to annealing

·Threaded, Stepped, Tapered, Wrench Flats, Keyway, Set Screw Flat

 

■Reduced Hardness Condition of Tapped

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

  • EN 1.4125 Equiv. or 13Cr Stainless Steel: 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. DEffective Hardened Layer Depth
EN 1.3505 Equiv.
8·100.5 or More
120.7 or More
15·20
25 to 501.0 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

Shafts - Surface Treatment Fully Plated   Related Image 1_Plating Layer
 

Difference Between Shaft and Rotary Shaft

■ Basic Specifications

SpecificationsShaftsRotary Shaft
MaterialEN 1.3505 Equiv.
EN 1.4125 Equiv. or 13Cr Stainless Steel
EN 1.1191 Equiv.
EN 1.4301 Equiv.
EN 1.1191 Equiv.
EN 1.4301 Equiv.
EN 1.7220 Equiv.
HardeningInduction HardenedHardness: 30 to 35 HRC
O.D. Tolerance g6/h5f8g6/h9/h7g6
Surface TreatmentNo Plating
Hard Chrome Plating
Low Temperature Black Chrome Plating
Electroless Nickel Plating (Surface Treatment Fully Plated Type)
Hard Chrome PlatingNo Plating
Black Oxide
Electroless Nickel Plating
Black Oxide
Electroless Nickel Plating

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

 

■ Alteration

AlterationsShaftsRotary 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 FlatsCan be specified up to 2 LocationsCan be specified up to 1 Location
Set Screw Flat Can be specified up to 2 LocationsCan be specified up to 3 Locations
2 Set Screw FlatsCan 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
KeywayCan be specified up to 2 Locations
Processing of Stepped Part: Not Possible
Can be specified up to 4 Locations
Processing of Stepped Part: Possible
UndercutM6 to M30M3 to M30
Tapped DepthPossiblePossible
Retaining Ring GrooveCan 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 AddedCan be specified up to 1 Location
C Chamfering WidthPossible

 

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
PSFCJ8-[20-800/1]
PSFCJ10-[20-800/1]
PSFCJ12-[20-1000/1]
PSFCJ15-[25-1000/1]
PSFCJ20-[30-1000/1]
PSFCJ25-[35-1000/1]
PSFCJ30-[35-1000/1]
PSFCJ35-[35-1000/1]
PSFCJ40-[50-1000/1]
PSFCJ50-[65-1000/1]
PSFCL8-[25-786/1]-B[7-40/1]-QMC8
PSFCL8-[25-786/1]-B[7-40/1]-S[7-40/1]
PSFCL8-[25-786/1]-PMC8-QMC8
PSFCL8-[25-786/1]-PMC8-S[7-40/1]
PSFCL10-[25-784/1]-B[8-50/1]-QMC10
PSFCL10-[25-784/1]-B[8-50/1]-S[8-50/1]
PSFCL10-[25-784/1]-PMC10-QMC10
PSFCL10-[25-784/1]-PMC10-S[8-50/1]
PSFCL12-[25-982/1]-B[9-60/1]-QMS12
PSFCL12-[25-982/1]-B[9-60/1]-S[9-60/1]
PSFCL12-[25-982/1]-PMC12-QMS12
PSFCL12-[25-982/1]-PMC12-S[9-60/1]
PSFCL12-[25-982/1]-PMS12-QMS12
PSFCL12-[25-982/1]-PMS12-S[9-60/1]
PSFCL12-[25-982/1]-QMC12-S[9-60/1]
PSFCL20-[25-1000/1]-B[13-100/1]-QMC20
PSFCL20-[25-1000/1]-B[13-100/1]-S[13-100/1]
PSFCL20-[25-1000/1]-PMC20-QMC20
PSFCL20-[25-1000/1]-PMC20-S[13-100/1]
PSFCL30-[25-1000/1]-B[18-150/1]-S[18-150/1]
Part NumberMinimum order quantityVolume Discount
Standard
Shipping Days
?
RoHSShaft end Shape (Left) Shaft end Shape (Right) [D] Diameter (Shaft)
(mm)
[L] Length (Shaft)
(mm)
End Section Type [B] Length (thread)
(mm)
[MSC] Size (fine thread - depth 2xMSC)
(mm)
Threaded (Coarse) [Q]
(mm)
[F] Length (stud - offset - front side)
(mm)
[PMC] Size (fine thread)
(mm)
Change to Fine Thread [QMC]
(mm)
[PMS] Size (fine thread)
(mm)
Change to Fine Thread [QMS]
(mm)
[M] Size (thread - depth 2xM)
(mm)
[P] Diameter (stepped - front side)
(mm)
Tapped (Coarse) [N]
(mm)
Change Tapped Thread N to Fine Thread [NSC]
(mm)
J
(mm)
S
(mm)
T
(mm)
1 9 Days 10StraightStraight820 ~ 800Straight---------------
1 9 Days 10StraightStraight1020 ~ 800Straight---------------
1 9 Days 10StraightStraight1220 ~ 1000Straight---------------
1 9 Days 10StraightStraight1525 ~ 1000Straight---------------
1 9 Days 10StraightStraight2030 ~ 1000Straight---------------
1 9 Days 10StraightStraight2535 ~ 1000Straight---------------
1 9 Days 10StraightStraight3035 ~ 1000Straight---------------
1 9 Days 10StraightStraight3535 ~ 1000Straight---------------
1 9 Days 10StraightStraight4050 ~ 1000Straight---------------
1 9 Days 10StraightStraight5065 ~ 1000Straight---------------
1 9 Days -StraightStraight825 ~ 786Both Ends Threaded with O.D. Same as Shaft O.D.7 ~ 40----8---------
1 9 Days -StraightStraight825 ~ 786Both Ends Threaded with O.D. Same as Shaft O.D.7 ~ 40------------7 ~ 40-
1 9 Days -StraightStraight825 ~ 786Both Ends Threaded with O.D. Same as Shaft O.D.----88---------
1 9 Days -StraightStraight825 ~ 786Both Ends Threaded with O.D. Same as Shaft O.D.----8--------7 ~ 40-
1 9 Days -StraightStraight1025 ~ 784Both Ends Threaded with O.D. Same as Shaft O.D.8 ~ 50----10---------
1 9 Days -StraightStraight1025 ~ 784Both Ends Threaded with O.D. Same as Shaft O.D.8 ~ 50------------8 ~ 50-
1 9 Days -StraightStraight1025 ~ 784Both Ends Threaded with O.D. Same as Shaft O.D.----1010---------
1 9 Days -StraightStraight1025 ~ 784Both Ends Threaded with O.D. Same as Shaft O.D.----10--------8 ~ 50-
1 9 Days -StraightStraight1225 ~ 982Both Ends Threaded with O.D. Same as Shaft O.D.9 ~ 60------12-------
1 9 Days -StraightStraight1225 ~ 982Both Ends Threaded with O.D. Same as Shaft O.D.9 ~ 60------------9 ~ 60-
1 9 Days -StraightStraight1225 ~ 982Both Ends Threaded with O.D. Same as Shaft O.D.----12--12-------
1 9 Days -StraightStraight1225 ~ 982Both Ends Threaded with O.D. Same as Shaft O.D.----12--------9 ~ 60-
1 9 Days -StraightStraight1225 ~ 982Both Ends Threaded with O.D. Same as Shaft O.D.------1212-------
1 9 Days -StraightStraight1225 ~ 982Both Ends Threaded with O.D. Same as Shaft O.D.------12------9 ~ 60-
1 9 Days -StraightStraight1225 ~ 982Both Ends Threaded with O.D. Same as Shaft O.D.-----12-------9 ~ 60-
1 9 Days -StraightStraight2025 ~ 1000Both Ends Threaded with O.D. Same as Shaft O.D.13 ~ 100----20---------
1 9 Days -StraightStraight2025 ~ 1000Both Ends Threaded with O.D. Same as Shaft O.D.13 ~ 100------------13 ~ 100-
1 9 Days -StraightStraight2025 ~ 1000Both Ends Threaded with O.D. Same as Shaft O.D.----2020---------
1 9 Days -StraightStraight2025 ~ 1000Both Ends Threaded with O.D. Same as Shaft O.D.----20--------13 ~ 100-
1 9 Days -StraightStraight3025 ~ 1000Both Ends Threaded with O.D. Same as Shaft O.D.18 ~ 150------------18 ~ 150-

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Basic information

RoHS Information RoHS requirements fulfilled Basic Shape Solid Features, Areas of application Not applicable
Shaft end Perpendicularity 0.2 Material EN 1.3505 Equiv. Heat Treatment Induction Hardened
Surface Treatment Electroless Nickel Plating ISO Tolerance g6 Hardness Induction Hardened (58HRC or more)

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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