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Linear Shafts One End Tapped (Part Numbers)
This is an economy item, The price is cheaper than the MISUMI standard product.
- RoHS
Part Number
Configured Part Number is shown.
Product Overview
Linear guide shafts are high-precision shaft products that can be used with linear bushings and other bushing-type products. They not only offer excellent wear resistance, but also provide a variety of additional machining options.
Dimensional Drawing
Specification Overview
| Type |  Material |  Hardness |  Surface Treatment | D (mm) | L (mm) | |
| Standard | ||||||
| D Tolerance g7 | D Tolerance f8 | |||||
| E-SFJT | - | S45C or GCr15 | High Frequency Quenched For effective hardening layer depth>>Refer to (PDF) S45C or GCr15 55HRC～ SUS440C or high hardness corrosion resistant steel 53HRC~ | - | 4~50 | 20~1500 |
| E-SSFJT | - | SUS440C or High hardness corrosion resistant steel | ||||
| E-PSFJT | - | S45C or GCr15 | Hard Chrome Plated Plating hardness: 750HV～ Plating thickness: 3μ or more | |||
| E-PSSFJT | - | SUS440C or High hardness corrosion resistant steel | ||||
| - | E-PSFGT | S45C Equivalent | - | Hard Chrome Plated Plating hardness: 750HV～ Plating thickness: 10μ or more | ||
The shaft end processing section (effective thread length + approx. 10 mm) may experience reduced hardness due to the annealing effect of the processing.If there are requirements for rust prevention, give priority to products with hard chrome plated surface treatment.If used with linear bushings, please select products with high-frequency quenching.O.D. 35, 40 and 50 are applicable only to E-PSFJTO.D. 4 and 5 are not applicable to E-PSFGTAlterations
| Alterations | Code | Spec. | ||
Change L Dimension Tolerance (Precision Grade) | LKC | Specification Method LKC When using LKC, the unit for specifying L dimension can be 0.1 mm L<200 →L±0.03200 ≤ L<500 →L±0.05 L ≥ 500 →L±0.1 | ||
Add 1 wrench slot machining | SC | Specified Method SC5 SC = Specified unit 1 mm SC+ℓ1 < L SC = 0 or SC ≥ 1 Applicable Conditions D = 6 or above applicable  Cannot be used together with WSC | ||
1 additional surface machining | FC | |||
2 additional flat surface machining locations | WFC | |||
When multiple alterations are selected, the machining parts need to be spaced by more than 2 mm. Click 
hereAdditional processing may cause a decrease in hardness. Please refer to Click herePrecision Reference
■D Tolerance
■ Tolerance of L size (Y size)
| D Tolerance | ||
| D | g7 | f8 |
| 4 | -0.004 -0.016 | - |
| 5 | ||
| 6 | -0.004 -0.016 | -0.010 -0.028 |
| 8 | -0.005 -0.020 | -0.013 -0.035 |
| 10 | ||
| 12 | -0.006 -0.024 | -0.016 -0.043 |
| 13 | ||
| 15 | ||
| 16 | ||
| 20 | -0.007 -0.028 | -0.020 -0.053 |
| 25 | ||
| 30 | ||
| 35 | -0.009 -0.034 | -0.025 -0.064 |
| 40 | ||
| 50 | ||
■ Tolerance of L size (Y size)
| Dimensions (Greater Than) | Dimensions (To) | Shaft tolerance g7 |
| 2 | 6 | ±0.1 |
| 6 | 30 | ±0.2 |
| 30 | 120 | ±0.3 |
| 120 | 400 | ±0.5 |
| 400 | 1000 | ±0.8 |
| 1000 | 1500 | ±1.2 |
Specification Table
| Part Number |  L can be specified down to 1 mm increments |  M (Coarse Thread)Selection | |||||||||||||
 Type |  D | Standard | |||||||||||||
| Standard (D Tolerance g7) E-SFJT E-SSFJT E-PSFJT E-PSSFJT (D Tolerance f8) E-PSFGT | 4 | 20 to 300 | 2 | ||||||||||||
| 5 | 20 to 400 | 2.6 | 3 | ||||||||||||
| 6 | 20 to 800 | 3 | |||||||||||||
| 8 | 20 to 1000 | 3 | 4 | 5 | |||||||||||
| 10 | 20 to 1000 | 3 | 4 | 5 | 6 | ||||||||||
| 12 | 20 to 1200 | 4 | 5 | 6 | 8 | ||||||||||
| 13 | 25 to 1200 | 4 | 5 | 6 | 8 | ||||||||||
| 15 | 25 to 1200 | 4 | 5 | 6 | 8 | 10 | |||||||||
| 16 | 30 to 1200 | 4 | 5 | 6 | 8 | 10 | |||||||||
| 20 | 30 to 1200 | 4 | 5 | 6 | 8 | 10 | 12 | ||||||||
| 25 | 35 to 1200 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | |||||||
| 30 | 35 to 1500 | 6 | 8 | 10 | 12 | 16 | 20 | ||||||||
| 35 | 35 to 1500 | 8 | 10 | 12 | 16 | 20 | 24 | 20 | |||||||
| 40 | 50 to 1500 | 10 | 12 | 16 | 20 | 24 | 30 | ||||||||
| 50 | 65 to 1500 | 10 | 12 | 16 | 20 | 24 | 30 | ||||||||
Outer diameters 35, 40, and 50 are only applicable to E-PSFJTOuter diameters 4 and 5 are not applicable to E-PSFGTProduct Features
Feature 1: Has high dimensional accuracy and is widely used in various precision equipment.
Feature 2: Uses bearing steel (45 or GCr15) with excellent wear resistance and SUS440C or high-hardness corrosion-resistant steel, which are high-frequency quenched to enhance wear resistance while maintaining original toughness.
Feature 3: Various additional processing options are available to meet different usage environments.
Feature 4: Usually used in combination with linear bushings products, it provides excellent linear guiding performance. Compared to conventional shaft and bushing structures, even during high-speed reciprocating motion, there is minimal wear.
Feature 5: Optional hard chrome plating provides excellent rust resistance, and the coating hardness reaches HV750. It will not be easily worn when used with high-hardness workpieces.
Feature 2: Uses bearing steel (45 or GCr15) with excellent wear resistance and SUS440C or high-hardness corrosion-resistant steel, which are high-frequency quenched to enhance wear resistance while maintaining original toughness.
Feature 3: Various additional processing options are available to meet different usage environments.
Feature 4: Usually used in combination with linear bushings products, it provides excellent linear guiding performance. Compared to conventional shaft and bushing structures, even during high-speed reciprocating motion, there is minimal wear.
Feature 5: Optional hard chrome plating provides excellent rust resistance, and the coating hardness reaches HV750. It will not be easily worn when used with high-hardness workpieces.
Precautions
 | (2) Decreased hardness in the machined area After quenching the base material, machining may cause some areas to lose hardness due to annealing: - All external threads - All steps - Internal threads: When M ≥ D/2, double-hole internal thread type, hard chrome plated products made of SUS440C or high-hardness corrosion-resistant steel - Additional processing for wrench slot (SC-WSC-SX) - Additional processing for flat surface (FC-WFC) - Additional processing for V-groove (VC-WVC) - Except for full-length hardened type. |
Only the shaded area of section D is hard chrome plated.
| (3) Coating for Surface Treatment After surface treatment of the base material, processing is performed. The following areas are not plated: - Grooved section -External thread section -Internal thread section -Wrench slot, V-groove, flat surface, cut surface -The inside of the pipe-type guide shaft is not hard chrome plated and may rust. |
Example of Use
Standard Linear Motion Mechanism
Example Image
Example Image
Functions of Standard Linear Motion Mechanisms
(1) Using two guide shafts in parallel effectively prevents workpiece rotation
(2) Improves the accuracy and load capacity of linear motion.
(3) High-speed reciprocating motion can be achieved through the combination of guide shafts and linear bushings.
(4) Lower running resistance, resulting in less wear on the corresponding workpiece.
(1) Using two guide shafts in parallel effectively prevents workpiece rotation
(2) Improves the accuracy and load capacity of linear motion.
(3) High-speed reciprocating motion can be achieved through the combination of guide shafts and linear bushings.
(4) Lower running resistance, resulting in less wear on the corresponding workpiece.
Actual Product Image
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Function of Key Components in the Mechanism
Guide Shaft: Supports the workpiece and, when used with linear bushings, provides a guiding function. For details, click
here
Linear bushing: Uses a ball circulation structure to move the workpiece along the guide shaft. For details, clickhere
Guide Shaft Support: Supports and secures the guide shaft, effectively adjusts shaft spacing, and enhances equipment stability. For more details, clickhere
Stopper: Serves as a limit, used to adjust the effective stroke of the mechanism. For details, clickhere
Guide Shaft: Supports the workpiece and, when used with linear bushings, provides a guiding function. For details, click
hereLinear bushing: Uses a ball circulation structure to move the workpiece along the guide shaft. For details, click
hereGuide Shaft Support: Supports and secures the guide shaft, effectively adjusts shaft spacing, and enhances equipment stability. For more details, click
hereStopper: Serves as a limit, used to adjust the effective stroke of the mechanism. For details, click
hereApplication Industries
Related Products
| Linear Bushing Standard type Straight type | Bearing with Housing T-Shaped | Shaft Collar Slit | ||
 |  |  | ||
| Typical model: LMU8 | Typical model: BGHK6000ZZ-30 | Typical model: SCS8-10 |
Related Documents
Part Number
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| Part Number |
|---|
| E-SFJT25-[35-1200/1]-MSC[8,10,12,14,18] |
| E-SFJT30-[35-1500/1]-M[6,8,10,12,16,20] |
| E-SFJT30-[35-1500/1]-MD[6,8,10,12,16,20] |
| E-SFJT30-[35-1500/1]-MSC[8,10,12,14,18] |
| E-SSFJT4-[20-300/1]-M2 |
| E-SSFJT5-[20-400/1]-M[2.6,3] |
| E-SSFJT6-[20-800/1]-M3 |
| E-SSFJT8-[20-1000/1]-M[3,4,5] |
| E-SSFJT10-[20-1000/1]-M[3,4,5,6] |
| E-SSFJT10-[20-1000/1]-MD6 |
| E-SSFJT12-[20-1200/1]-M[4,5,6,8] |
| E-SSFJT12-[20-1200/1]-MD[6,8] |
| E-SSFJT12-[20-1200/1]-MSC8 |
| E-SSFJT13-[25-1200/1]-M[4,5,6,8] |
| E-SSFJT13-[25-1200/1]-MD[6,8] |
| E-SSFJT13-[25-1200/1]-MSC8 |
| E-SSFJT15-[25-1200/1]-M[4,5,6,8,10] |
| E-SSFJT15-[25-1200/1]-MD[6,8,10] |
| E-SSFJT15-[25-1200/1]-MSC[8,10] |
| E-SSFJT16-[30-1200/1]-M[4,5,6,8,10] |
| E-SSFJT16-[30-1200/1]-MD[6,8,10] |
| E-SSFJT16-[30-1200/1]-MSC[8,10] |
| E-SSFJT20-[30-1200/1]-M[4,5,6,8,10,12] |
| E-SSFJT20-[30-1200/1]-MD[6,8,10,12] |
| E-SSFJT20-[30-1200/1]-MSC[8,10,12,14] |
| E-SSFJT25-[35-1200/1]-M[4,5,6,8,10,12,16] |
| E-SSFJT25-[35-1200/1]-MD[6,8,10,12,16] |
| E-SSFJT25-[35-1200/1]-MSC[8,10,12,14,18] |
| E-SSFJT30-[35-1500/1]-M[6,8,10,12,16,20] |
| E-SSFJT30-[35-1500/1]-MD[6,8,10,12,16,20] |
| E-SSFJT30-[35-1500/1]-MSC[8,10,12,14,18] |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Material | Heat Treatment | Surface Treatment | Shaft Dia. D (Ø) | Length L (mm) | Shaft Fit Tolerance | Tapped M (Coarse Thread) (mm) | Changes tapped thread to fine one [MSC] (mm) | MD (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
- | 1 Piece(s) | 7 Day(s) | [Steel] S45C or GCr15 | Induction Hardened | Not Provided | 25 | 35 ～ 1200 | g7 | - | 8 ～ 18 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Steel] S45C or GCr15 | Induction Hardened | Not Provided | 30 | 35 ～ 1500 | g7 | 6 ～ 20 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Steel] S45C or GCr15 | Induction Hardened | Not Provided | 30 | 35 ～ 1500 | g7 | - | - | 6 ～ 20 | ||
- | 1 Piece(s) | 7 Day(s) | [Steel] S45C or GCr15 | Induction Hardened | Not Provided | 30 | 35 ～ 1500 | g7 | - | 8 ～ 18 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 4 | 20 ～ 300 | g7 | 2 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 5 | 20 ～ 400 | g7 | 2.6 ～ 3 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 6 | 20 ～ 800 | g7 | 3 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 8 | 20 ～ 1000 | g7 | 3 ～ 5 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 10 | 20 ～ 1000 | g7 | 3 ～ 6 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 10 | 20 ～ 1000 | g7 | - | - | 6 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 12 | 20 ～ 1200 | g7 | 4 ～ 8 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 12 | 20 ～ 1200 | g7 | - | - | 6 ～ 8 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 12 | 20 ～ 1200 | g7 | - | 8 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 13 | 25 ～ 1200 | g7 | 4 ～ 8 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 13 | 25 ～ 1200 | g7 | - | - | 6 ～ 8 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 13 | 25 ～ 1200 | g7 | - | 8 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 15 | 25 ～ 1200 | g7 | 4 ～ 10 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 15 | 25 ～ 1200 | g7 | - | - | 6 ～ 10 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 15 | 25 ～ 1200 | g7 | - | 8 ～ 10 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 16 | 30 ～ 1200 | g7 | 4 ～ 10 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 16 | 30 ～ 1200 | g7 | - | - | 6 ～ 10 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 16 | 30 ～ 1200 | g7 | - | 8 ～ 10 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 20 | 30 ～ 1200 | g7 | 4 ～ 12 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 20 | 30 ～ 1200 | g7 | - | - | 6 ～ 12 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 20 | 30 ～ 1200 | g7 | - | 8 ～ 14 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 25 | 35 ～ 1200 | g7 | 4 ～ 16 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 25 | 35 ～ 1200 | g7 | - | - | 6 ～ 16 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 25 | 35 ～ 1200 | g7 | - | 8 ～ 18 | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 30 | 35 ～ 1500 | g7 | 6 ～ 20 | - | - | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 30 | 35 ～ 1500 | g7 | - | - | 6 ～ 20 | ||
- | 1 Piece(s) | 7 Day(s) | [Stainless Steel] SUS440C or Equivalent | Induction Hardened | Not Provided | 30 | 35 ～ 1500 | g7 | - | 8 ～ 18 | - |
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Basic Information
| Basic Shape | Solid | End Shape (Left) | Tapped | End Shape (Right) | No Machining |
|---|---|---|---|---|---|
| Shaft End Perpendicularity | Perpendicularity (0.2) | Precision | Standard |
Specification/Dimensions
-
Material
- Steel
- Stainless Steel
- Steel
-
Heat Treatment
- Not Provided
- Induction Hardened
-
Surface Treatment
- Not Provided
- Hard Chrome Plating
-
Shaft Dia. D(Ø)
-
Length L(mm)
-
Shaft Fit Tolerance
-
Tapped M (Coarse Thread)(mm)
-
Changes tapped thread to fine one [MSC](mm)
-
MD(mm)
-
type
- E-PSFGT
- E-PSFJT
- E-PSSFJT
- E-SFJT
- E-SSFJT
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 5 Day(s) or Less
- 7 Day(s) or Less
- 10 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: Why did the stainless steel guide shaft product rust?
- Answer: The stainless steel material used for the guide shaft is SUS440C or an equivalent high-hardness corrosion-resistant steel. After quenching, it has good wear resistance, but the material itself has relatively weak corrosion resistance. Therefore, if you require a high level of rust prevention, please choose products with a hard chrome plated surface treatment.
- Question: The catalog lists guide shaft products as having high hardness, so why is the hardness measured at the center of the end face so low?
- Answer: The guide shaft uses high-frequency quenching heat treatment, which forms a certain depth of hardened layer on the outer cylindrical surface of the guide shaft. To ensure the product's toughness, the center of the guide shaft retains the original hardness of the material.
- Question: What are the advantages of combining guide shafts with linear bearings?
- Answer: The guide shaft, in combination with the linear bearing through rolling friction, enables high-precision linear motion without causing excessive frictional resistance to the workpiece, making it suitable for long-term continuous operation.
- Question: If you need a shaft product with a length of 100.5 mm, how do you select the model?
- Answer: Additional machining by LKC is available; the total length can be specified in 0.1 mm increments.
- Question: Why do the ends of guide shafts with hard chrome plating rust?
- Answer: The guide shaft undergoes surface treatment during raw material production, and is then cut to length. No additional surface treatment is performed after cutting, so the cut ends do not have a hard chrome plating, which may cause the ends to rust.
- Question: When the guide shaft and linear bearing are used together, some are closely matched, but some have relatively large clearance. Does it affect the use?
- Answer: The guide shaft and linear bearing are in point contact and rolling fit through the circulating steel ball structure. Because of point contact and non-interference fit, it is normal to have clearance between the shaft and the bearing, which will not affect the use. The use of this structure greatly reduces the friction resistance and prolongs the service life of the workpiece.
- Question: Is MISUMI's stainless steel guide shaft material imported?
- Answer: MISUMI guide shafts are made from bearing steel (SUJ2) and stainless steel (SUS440C), both of which are imported from Japan.
- Question: I would like to know the inspection methods and specification accuracy for the straightness of guide shafts.
- Answer: Support both ends of the guide shaft with V-blocks, rotate the shaft one full turn at any point, and measure the dial gauge's runout. Half of the amplitude measurement is the straightness. Straightness may vary depending on the outer diameter and length.
- Question: What is the perpendicularity accuracy of the guide shaft?
- Answer: The perpendicularity of the standard type guide shaft is 0.2, and the perpendicularity of the precision type is 0.03.
Additional Products in this Category
- Linear Shafts - Keyway
- Linear Shafts - Continuous Support - Pre-Drilled and Tapped
- Shafts - Tapped Pilot Type
- Shafts -One End Two Female Thread Holes Type-
- Linear Shafts One End Threaded with Undercut
- Linear Shafts-Both Ends Tapped with Wrench Flats / Both Ends Tapped with Cross-Drilled Hole
- Linear Shafts-One Ends Threaded
- Linear Shafts Both End Stepped, Both End Tapped with Wrench Flats
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