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[Clean & Pack] Shaft - Both Ends Threaded with Undercut (Part Numbers)

[Clean & Pack] Shaft - Both Ends Threaded with Undercut

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Three types of cleaning methods are available: degreasing, precision cleaning, and electrolytic polishing + precision cleaning. They can be ordered from one piece with the standard part number.
This eliminates the need for customer cleaning or outsourced cleaning, reducing the amount of time and effort required.
■Part Number for Clean & Pack Products
·Degreasing (Anti-rust single packing)    : Part Number SL-□□
·Precision cleaning (Degassing double packing)    : Part Number SH-□□
·Electrolytic polishing + precision cleaning (Degassing double packing): Part Number SHD-□□
Product Part NumberCleaning MethodPackaging TypeEffects Compared to Uncleaned ProductEnvironment (Standard)Process
SL-□□DegreasingAnti-rust packingOil removalGeneral environmentRegular assembly process
Post battery assembly process
SH-□□Precision cleaningDegassing double packingOil removal
Dust removal
Clean environment (Class 10 to 1,000)Battery assembly process
LCD-related post assembly process
In-vehicle camera assembly process
SHD-□□Electrolytic polishing + precision cleaningDegassing double packingOil removal
Dust removal
Outgas reduction
Vacuum environment
Clean environment (Class 10 to 1,000)
Pre-semiconductor process
Liquid crystal deposition process
Pre-OLED process
■Notes
Cleaning also removes rust prevention oil, which may make the product more susceptible to rusting than an uncleaned product.
Please be careful about the application location and storage environment.

(i)Caution

  • Cleaning also removes rust prevention oil, which may make the product more susceptible to rusting than an uncleaned product. Please be careful about the application location and storage environment.


[ ! ] For plated products, the surface roughness of D part is ; and for unplated products, it is .
[ ! ] The dimension tolerances for L, F, and T conform to JIS B 0405 Class m. However, threaded chamfer tolerances are excluded.
Type[ M ] Material[ H ] Hardness[ S ] Surface TreatmentCleaning Method
D Tolerance f8D Tolerance g6D Tolerance h5Cleaning MethodCleaning EnvironmentPackaging TypePacking Environment
SL-PSSAGM--SUS304-Hard Chrome Plating
Plating Hardness: HV750 or more
Plating Thickness: 10 µ or more
DegreasingGeneral environmentAnti-rust packingGeneral environment
SH-PSSAGMPrecision cleaningClass 1,000Degassing double packingClass 10
-SL-SSAFMSL-SSFMUSUS440C or
13Cr Stainless Steel
Induction Hardening
SUJ2 Equivalent 58 HRC or more
SUS440C or
13Cr Stainless Steel 56 HRC or more
-DegreasingGeneral environmentAnti-rust packingGeneral environment
SH-SSAFMSH-SSFMUPrecision cleaningClass 1,000Degassing double packingClass 10
-SL-PSSAFMSL-PSSFMUHard Chrome Plating
Plating Hardness: HV750 or more
Plating Thickness: 5 µ or more
DegreasingGeneral environmentAnti-rust packingGeneral environment
SH-PSSAFMSH-PSSFMUPrecision cleaningClass 1,000Degassing double packingClass 10
-SL-RSAFM-SUJ2 EquivalentLow Temperature Black Chrome PlatingDegreasingGeneral environmentAnti-rust packingGeneral environment
SH-RSAFMPrecision cleaningClass 1,000Degassing double packingClass 10
-SL-RSSAFM-SUS440C or
13Cr Stainless Steel
DegreasingGeneral environmentAnti-rust packingGeneral environment
SH-RSSAFMPrecision cleaningClass 1,000Degassing double packingClass 10
[ ! ] Annealing may lower hardness at shaft end machined areas (effective thread length + approx. 10 mm).
[ ! ] Low temperature black chrome plated products made of SUS440C or 13Cr stainless steel have identification grooves.
[ ! ] Hard chrome plating is applied after surface treatment of the base material, so there is no plating on the machined area.
[ ! ] Products are packed by order quantity. Ex. If the order is for 20 pieces, they are packed in one package (incl. 20 pieces).
[ ! ] See the details of degreasing and precision cleaning shown at the bottom of the specification table.


Specification Table

Part Number
-
L
-
F
-
M
-
T
-
N
SL-PSSAGM30
-
500
-
F35
-
M12
-
T23
-
N8
SH-PSSAGM30
-
500
-
F35
-
M12
-
T23
-
N8
D Tolerance
Df8g6h5
8-0.013
-0.035
-0.005
-0.014
0
-0.006
10
12-0.016
-0.043
-0.006
-0.017
0
-0.008
13
15
16
18
20-0.020
-0.053
-0.007
-0.020
0
-0.009
25
30
35-0.025
-0.064
-0.009
-0.025
0
-0.011
40
50
Part Number1 mm IncrementsSelection
M·N (Coarse)
(Y)
Max.
C
TypeDLF, T
D Tolerance f8
SL-PSSAGM
SH-PSSAGM


D Tolerance g6
SL-SSAFM
SH-SSAFM
SL-PSSAFM
SH-PSSAFM
SL-RSAFM
SH-RSAFM
SL-RSSAFM
SH-RSSAFM


D Tolerance h5
SL-SSFMU
SH-SSFMU
SL-PSSFMU
SH-PSSFMU


[ ! ] Low Temperature Black Chrome Plated Products
D ≤ 30
825 to 7905 ≤ F ≤ M × 3
5 ≤ T ≤ N × 3
56       8000.5
or Less
1025 to 790568      800
1225 to 79056810     800
1325 to 7905681012    800
1525 to 7905681012    800
1625 to 7905681012    800
1825 to 790568101216   800
2025 to 790568101216   8001.0
or Less
2525 to 7905681012162024 800
3025 to 790 681012162024 800
3525 to 790   101216202430800
4025 to 790[ ! ] F- (g) ≥ Pitch × 3
[ ! ] T- (g) ≥ Pitch × 3
    1216202430800
5025 to 790     16202430800
● Low Temperature Black Chrome Plated Products [ ! ] When L(Y) ≥ 501, F(T) - g ≥ 10 is required.
Undercut Dimensions for Coarse Threads
M
N
PitchMC
NC
(g)
50.84.12
61.04.4
81.256.03
101.57.7
121.759.44
162.013.0
202.516.45
243.019.6
303.525.0

■Details of Threaded 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 details.
*When selecting multiple alterations, the distance between machined areas should be 2 mm or more.
*Alteration may lower hardness.

Alterations
Code
Alteration DetailsFixed DimensionApplicable ConditionsOrdering Example
LKC

Precisely change L dimension and tolerance

Shaft - Both Ends Threaded with Undercut, Related Image 1_Alteration Detail

· 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 incrementsSL-PSSAGM30-300.5-F40-M20-T48-N16-LKC
WSC

Wrench Flats at Two Locations
Shaft: Both Ends Threaded with Undercut, Related Image 2_Alteration Detail

DW1 DW1
878 201710
108 2522
121010 302715
1311 3530
1513 403620
1614 5041
1816    
[ ! ] WSC, X = 1 mm increment
[ ! ] WSC + X + ℓ1 × 2
[ ! ] WSC (X) ≥ 0

[ NG ]Cannot be machined coplanarly
SL-PSSAGM30-300-F40-M20-T48-N16-WSC12-X8
FC

Set Screw Flat at One Location
Shaft: Both Ends Threaded with Undercut, Related Image 3_Alteration Detail

Dh
8 to 181
20 to 402
503
[ ! ] FC, E = 1 mm increment
[ ! ] D ≤ 30: FC ≤ 5 × D,
D ≥ 35: FC ≤ 3 × D
[ ! ] E = 0 or E ≥ 2

[ NG ] Not available in combination with WFC
SL-PSSAGM30-300-F40-M20-T48-N16-FC10-E8
WFC

Set Screw Flats at Two LocationsShaft: Both Ends Threaded with Undercut, Related Image 4_Alteration Detail

Dh
8 to 181
20 to 402
503
[ ! ] WFC, A, E = 1 mm increment
[ ! ] D ≤ 30: WFC ≤ 5 × D,
D ≥ 35: WFC ≤ 3 × D
[ ! ] A(E) = 0 or A(E) ≥ 2

[ NG ]Cannot be machined coplanarly
[ NG ]Not available in combination with FC
SL-PSSAGM30-300-F40-M20-T48-N16-WFC10-A8-E20
RC

90-Deg. Set Screw Flat at One Location
Shaft: Both Ends Threaded with Undercut, Related Image 5_Alteration Detail

Db1h
1060.5
12 to 201.0
2510
3012
[ ! ] Applicable to D = 10 to 30
[ ! ] RC = 1 mm increment
[ ! ] RC + b1 ≤ L
[ ! ] RC ≥ 2

[ NG ] Not available in combination with WRC
SL-PSSAGM30-300-F40-M20-T48-N16-RC10
WRC

90-deg. Set Screw Flats at Two Locations
Shaft: Both Ends Threaded with Undercut, Related Image 6_Alteration Detail

Db1h
1060.5
12 to 201.0
2510
3012
[ ! ] Applicable to D = 10 to 30
[ ! ] WRC = 1 mm increment
[ ! ] WRC + b1 ≤ L
[ ! ] WRC (Y) ≥ 2

[ NG ]Cannot be machined coplanarly
[ NG ]Not available in combination with RC
SL-PSSAGM30-300-F40-M20-T48-N16-WRC10-Y10
MMC
MMS
NMC
NMS

Change Thread to Fine Thread
Shaft: Both Ends Threaded with Undercut, Related Image 7_Alteration Detail

 
DMMC, NMCMMS, NMS
834568           
10 456810      10   
12  5681012     1012  
13  5681012     10   
15  568101215    1012  
16  568101215    101214 
18  56810121517   10121418
20   681012151720  10121418
25    8101215172025 10121418
30    81012151720253010121418
35     1012151720253010121418
40      121517202530 121418
50       1517202530  1418
Pitch0.350.50.751.01.51.251.5
Undercut Dimensions for Fine Threads (1)
MMC
NMC
PitchMC
NC
g
60.754.82.0
81.06.4
108.4
1210.4
1513.4
1715.4
2018.4
251.522.73.0
3027.7
Undercut Dimensions for Fine Threads (2)
MMS
NMS
PitchMC
NC
g
101.2583.0
121.59.7
1411.7
1815.7
[Bearing Nut Fine Thread Alteration]
·Specify "MMC" for the left end, and "NMC" for the right end

[Cylinder Fine Thread Alteration]
·Specify "MMS" for the left end, and "NMS" for the right end
SL-PSSAGM30-300-F40-MMC15-T45-NMC15

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

■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)
DCircularity M
Overor Less
7130.004
13200.005
20400.006
40500.007
Unit: mm
Shaft Outer Dia. f8 (without hardening)
DCircularity M
Overor Less
7100.011
10180.014
18300.017
30500.020
Unit: mm
 

■Straightness K

Shaft Outer Dia. g6·h5 (Hardening)
DLStraightness K
8 to 50L ≤ 1000.01 or Less
L > 100(L/100) × 0.01 or Less
Unit: mm
Shaft Outer Dia. f8 (without hardening)
LStraightness K
L ≤ 1000.025 or Less
L > 100(L/100) × 0.025 or Less
Unit: mm
 

■L Dimension Tolerance

Shaft Outer Dia. g6·h5 (Hardening)
LL Dimension
Tolerance
Overor Less
2430±0.2
30120±0.3
120400±0.5
4001000±0.8
10001500±1.2
Unit: mm
Shaft Outer Dia. f8 (without hardening)
LL Dimension
Tolerance
Overor Less
2430±0.2
30120±0.3
120400±0.5
4001000±0.8
10001500±1.2
Unit: mm
 

■ Concentricity and Perpendicularity

Notes on Hardening and Surface Treatment

■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)

 
 

■Machined area where hardness has lowered due to annealing

·Threaded, Wrench Flats, Set Screw Flats, 90-deg. Flats

 

■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
SUJ2 EquivalentSUS440C/
13Cr Stainless Steel
8, 100.5 or More0.5 or More
12, 130.7 or More
15 to 200.7 or More
25 to 501.0 or More
 

■About hard chrome plating and plating layer of machined area

  • Hard chrome plating is applied after surface treatment of the base material, so there is no plating on the machined area.
  • 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

· Specification comparison between Linear Shaft and Rotary Shaft

 

■ Basic Specifications

SpecificationsShaftsRotary Shaft
MaterialSUJ2 Equivalent
SUS440C or 13Cr Stainless Steel
S45C Equivalent
SUS304
S45C Equivalent
SUS304
SCM435
HardeningInduction Hardened--Hardness: 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 area.here

 

■ 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
Change to Fine Thread2 Types1 Type
Change to Fine Thread1 Type-
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 Added-Can be specified up to 1 Location
C Chamfering Width-Possible


Cleaning Process

· Degreasing (Part Number: SL-□□)

* Stainless steel products may be used with alkaline hot pure water. There is no change in cleanliness.
* If the surface treatment is low-temperature black chrome plating, IPA cleaning will be applied.

Working Environment: General environment


Hydrocarbon cleaning Ro water cleaning
Neutral Detergent Cleaning

High-pressure jet washing (Ro water) followed by pure water cleaning

Oil-free Compressor Used

Anti-rust single packing
· Precision cleaning (Part Number: SH-□□)
 

Working Environment: Class 1,000

 

Working Environment: Class 10


Hydrocarbon cleaning Ro water cleaning
Neutral Detergent Cleaning

High-pressure jet washing (Ro water) followed by pure water (10 MΩ·cm) cleaning

Use pure water (13 MΩ·cm)

Use nitrogen blow

Conducted on a clean bench in a Class 10 clean environment
· Electrolytic polishing + precision cleaning (Part Number: SHD-□□)
 

Working Environment: Class 1,000

 

Working Environment: Class 10


Hydrocarbon cleaning
Ro water cleaning
Neutral Detergent Cleaning

Electrolytic polishing with an electrolytic polishing layer according to the material

High-pressure jet washing (Ro water) followed by pure water (10 MΩ·cm) cleaning

Use warm pure water (13 MΩ·cm)

Use nitrogen blow

Conducted on a clean bench in a Class 10 clean environment
Packaging Example
For degreasing:
(Part Number: SL-□□)

For precision cleaning or electrolytic polishing + precision cleaning:

(Part Number: SH-□□/SHD-□□) 
 For austenitic stainless steel and aluminum materialsFor iron and martensitic stainless steel materials
Depending on some products and sizes,
packaging type may vary.
[ ! ] Both the first and second layer packaging are degassed.[ ! ] A desiccant is included as an anti-rust measure.
There is one desiccant per package.
 
Cleaning Effectiveness / Recommended Environment for Use

Cleaning Method

Product Part Number

Packaging Type

Effects Compared to Uncleaned Product

Environment (Standard)

Use Case and Process

DegreasingSL-□□Anti-rust packingOil removalGeneral environmentRegular assembly process
Post battery assembly process
Precision cleaningSH-□□Degassing double packingOil removal
Dust removal
Clean environment (Class 10 to 1,000)Battery assembly process
LCD-related post assembly process
In-vehicle camera assembly process
Electrolytic polishing + precision cleaningSHD-□□Degassing double packingOil removal
Dust removal
Outgas reduction
Vacuum environment
Clean environment (Class 10 to 1,000)
Pre-semiconductor process
Liquid crystal deposition process
Pre-OLED process

Part Number 

CAD Data download and 3D preview are not available because the part number has not yet been determined.

  • *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
  • Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
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Part Number
Part NumberMinimum order quantityVolume DiscountDays to ShipShaft Dia. D
(Ø)
Length L
(mm)
Cleaning Method Change Thread N to Fine Thread [NMC]
(㎜)
F
(㎜)
Change Thread N to Fine Thread [NMS]
(㎜)
T
(㎜)
Change Thread M to Fine Thread [MMS]
(㎜)
Change Thread M to Fine Thread [MMC]
(㎜)
Threaded (Coarse) [N]
(㎜)
Threaded (Coarse) [M]
(㎜)

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Basic Information

Environmentally friendly RoHS Compliant (10 Substances) Basic Shape Solid Characteristics/Applications Clean Washed
End Shape (Left) Threaded End Shape (Right) Threaded Shaft End Perpendicularity Perpendicularity (0.2)
Material SUS304 Heat Treatment Not Provided Surface Treatment Hard Chrome Plating
Material Details SUS304 Shaft Fit Tolerance f8 Hardness Not induction hardened

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