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Guide Shafts One End Tapped with Wrench Slot
Part Number
Configured Part Number is shown.
Dimensional Drawing
Specification Table
■Material Specification
The hardness of shaft end machined part may be reduced due to the annealing effect of machining.
If there are requirements for rust prevention, please give priority to the hard-chrome plated products. Click 
Rust Prevention Method
For combination with linear bushing, please select high-frequency quenched products.
■ Dimension Specification
| D Tolerance |  Equivalent Material |  Hardness |  Surface Treatment | |
| g7 | GB：45 JIS：S45C | 55HRC～ | High Frequency Quenched For effective hardening layer depth, click  Surface Hardness Benchmark | Hard Chrome Plated Plating hardness: HV750～ Plating thickness: 3μ or more |
The hardness of shaft end machined part may be reduced due to the annealing effect of machining.If there are requirements for rust prevention, please give priority to the hard-chrome plated products. Click Rust Prevention MethodFor combination with linear bushing, please select high-frequency quenched products.■ Dimension Specification
 Shaft Dia. D (φ) | Tolerance g7 |  Length L1mm increments |  Nominal Thread M(Coarse Thread) | Wrench slot size | C | ||||||||||
 SC | W | ℓ1 | |||||||||||||
| 6 | -0.004 -0.016 | 20～ 600 | 3 | SC ＝ 1mm increments SC+ℓ1 ≤L SC≥0 | 5 | 8 | Below 0.5 | ||||||||
| 8 | -0.005 -0.020 | 20～ 800 | 3 | 4 | 5 | 7 | |||||||||
| 10 | 3 | 4 | 5 | 6 | 8 | ||||||||||
| 12 | -0.006 -0.024 | 20~1000 | 4 | 5 | 6 | 8 | 10 | 10 | |||||||
| 13 | 25~1000 | 4 | 5 | 6 | 8 | 11 | |||||||||
| 16 | 30~1200 | 4 | 5 | 6 | 8 | 10 | 14 | ||||||||
| 20 | -0.007 -0.028 | 4 | 5 | 6 | 8 | 10 | 12 | 17 | Below 1.0 | ||||||
| 25 | 35~1200 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | 22 | ||||||
| 30 | 35~1500 | 6 | 8 | 10 | 12 | 16 | 20 | 27 | 15 | ||||||
Precision Benchmark
■Roundness·Straightness·L Dimensional Precision
■Straightness Measurement Method
Support both ends of the guide shaft with V-shaped blocks,
rotate the shaft for 1 turn at any point,
and measure the amplitude of the dial meter.
1/2 of the amplitude measurement value is the straightness.
■Roundness of Part D
| Shaft Dia. (more than) | Shaft Dia. (to) | Standard product g6 | Economy series g7 | Medium precision h8 |
| 2 | 5 | 0.004 | － | － |
| 5 | 10 | 0.004 | 0.012 | 0.012 |
| 10 | 13 | 0.004 | 0.012 | 0.012 |
| 13 | 18 | 0.005 | 0.016 | 0.016 |
| 18 | 20 | 0.005 | 0.016 | 0.016 |
| 20 | 40 | 0.006 | 0.020 | 0.020 |
| 40 | 50 | 0.007 | － | － |
■Straightness
| Shaft Dia. | Total Length | Standard product g6 | Economy series g7 | Medium precision h8 |
| 3·4 | ≤100 | (L/100)×0.05 or Less | － | － |
| ＞100 | ||||
| 5 | ≤100 | (L/100)×0.03 or Less | ||
| ＞100 | ||||
| 6~50 | ≤100 | Below 0.01 | Below 0.025 | Below 0.025 |
| ＞100 | (L/100)×0.01 or Less | (L/100)×0.025 or Less | (L/100)×0.025 or Less |
■L dimension tolerance
| Dimension (more than) | Dimension (to) | Standard product g6 | Economy series g7 | Medium precision h8 |
| 2 | 6 | ±0.1 | ||
| 6 | 30 | ±0.2 | ||
| 30 | 120 | ±0.3 | ||
| 120 | 400 | ±0.5 | ||
| 400 | 1000 | ±0.8 | ||
| 1000 | 1500 | ±1.2 | ||
■Perpendicularity
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 |
|---|
| E-PSFJC6-[20-600/1]-M3-SC[0-592/1] |
| E-PSFJC8-[20-800/1]-M[3,4,5]-SC[0-792/1] |
| E-PSFJC10-[20-800/1]-M[3,4,5,6]-SC[0-490/1] |
| E-PSFJC12-[20-1000/1]-M[4,5,6,8]-SC[0-990/1] |
| E-PSFJC13-[25-1000/1]-M[4,5,6,8]-SC[0-990/1] |
| E-PSFJC15-[30-1200/1]-M[4,5,6,8,10]-SC[0-1190/1] |
| E-PSFJC16-[30-1200/1]-M[4,5,6,8,10]-SC[0-1190/1] |
| E-PSFJC20-[30-1200/1]-M[4,5,6,8,10,12]-SC[0-1190/1] |
| E-PSFJC25-[35-1200/1]-M[4,5,6,8,10,12,16]-SC[0-1180/1] |
| E-PSFJC30-[35-1500/1]-M[6,8,10,12,16,20]-SC[0-1485/1] |
| E-PSFJC35-[35-1500/1]-M[8,10,12,16,20,24]-SC[0-1485/1] |
| E-PSFJC40-[40-1500/1]-M[10,12,16,20,24,30]-SC[0-1485/1] |
| E-PSFJC50-[50-1500/1]-M[12,16,20,24,30]-SC[0-1485/1] |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Shaft Dia. D (Ø) | Length L (mm) | Tapped M (Coarse Thread) (mm) | SC (mm) |
|---|---|---|---|---|---|---|---|---|---|
- | 2 Piece(s) | 7 Day(s) | 10 | 6 | 20 ～ 600 | 3 | 0 ～ 592 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 8 | 20 ～ 800 | 3 ～ 5 | 0 ～ 792 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 10 | 20 ～ 800 | 3 ～ 6 | 0 ～ 490 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 12 | 20 ～ 1000 | 4 ～ 8 | 0 ～ 990 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 13 | 25 ～ 1000 | 4 ～ 8 | 0 ～ 990 | ||
- | 2 Piece(s) | 7 Day(s) | - | 15 | 30 ～ 1200 | 4 ～ 10 | 0 ～ 1190 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 16 | 30 ～ 1200 | 4 ～ 10 | 0 ～ 1190 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 20 | 30 ～ 1200 | 4 ～ 12 | 0 ～ 1190 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 25 | 35 ～ 1200 | 4 ～ 16 | 0 ～ 1180 | ||
- | 2 Piece(s) | 7 Day(s) | 10 | 30 | 35 ～ 1500 | 6 ～ 20 | 0 ～ 1485 | ||
- | 2 Piece(s) | 7 Day(s) | - | 35 | 35 ～ 1500 | 8 ～ 24 | 0 ～ 1485 | ||
- | 2 Piece(s) | 7 Day(s) | - | 40 | 40 ～ 1500 | 10 ～ 30 | 0 ～ 1485 | ||
- | 2 Piece(s) | 7 Day(s) | - | 50 | 50 ～ 1500 | 12 ～ 30 | 0 ～ 1485 |
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Product Overview
Linear guide shaft is a high precision shaft product, which can be used in combination with linear bushing and other bushing products. In addition to excellent abrasion resistance, it offers a variety of alterations.
The hardness of shaft end machined part (effective thread length + approx. 10mm) may be reduced due to the annealing effect of machining.
If there are requirements for rust prevention, please give priority to the hard-chrome plated products. Click Rust Prevention Method
For combination with linear bushing, please select high-frequency quenched products.
Related Documents
Product Features
Feature 1: Extensively applied in various precision equipment thanks to high precision dimensional tolerance and geometric tolerance.
Feature 2: High-frequency quenched using carbon steel (S45C) material, maintaining the original toughness while enhancing abrasion resistance.
Feature 3: A variety of alterations are available to accommodate different environments.
Feature 4: Usually combined with linear bushing products, achieving excellent linear guiding functionality, and less abrasion even if subject to high-speed reciprocal motion, as compared with general shaft and bushing structure.
Feature 5: The surface treatment of hard-chrome plating is available, achieving excellent anti-rust performance and HV750 plating hardness, as well as less abrasion when used in combination with high-hardness workpieces.
Feature 6: Greatly reduced prices in comparison with standard guide shafts.
Feature 2: High-frequency quenched using carbon steel (S45C) material, maintaining the original toughness while enhancing abrasion resistance.
Feature 3: A variety of alterations are available to accommodate different environments.
Feature 4: Usually combined with linear bushing products, achieving excellent linear guiding functionality, and less abrasion even if subject to high-speed reciprocal motion, as compared with general shaft and bushing structure.
Feature 5: The surface treatment of hard-chrome plating is available, achieving excellent anti-rust performance and HV750 plating hardness, as well as less abrasion when used in combination with high-hardness workpieces.
Feature 6: Greatly reduced prices in comparison with standard guide shafts.
Specifications Overview
| D Tolerance | Equivalent Material | Hardness | Surface Treatment | D (mm) | L (mm) | |
| g7 | GB：45 JIS：S45C | 55HRC～ | High Frequency Quenched For effective hardening layer depth, click Surface Hardness Benchmark | Hard Chrome Plated Plating hardness: HV750～ Plating thickness: 3μ or more | 6~30 | 20~1500 |
The hardness of shaft end machined part (effective thread length + approx. 10mm) may be reduced due to the annealing effect of machining.If there are requirements for rust prevention, please give priority to the hard-chrome plated products. Click Rust Prevention MethodFor combination with linear bushing, please select high-frequency quenched products.Usage Method
| Example of Use | Medium Precision | High Precision |
| Economy series g7 | g6 standard type/g6 precision type | |
 |  | |
| Recommended Applications | - Medium precision application - Light load - Use in vertical direction and suitable for light load - Short sliding distance - Low frequency - Low speed - Low-price design | - High precision application (Outer diameter-Straightness-Roundness) - Heavy load - High-durability application - Use in horizontal direction and suitable for heavy load - Long sliding distance - High frequency - High speed |
Example of Use
Standard Linear Motion Mechanism
Example Diagram
Example Diagram
Functions of standard linear motion mechanism
①Side-by-side use of two guide shafts effectively prevents workpiece rotation
②Improved accuracy of linear motion and load capacity.
③The combination of guide shaft and linear bushing enables high-speed reciprocal motion.
④Low operational resistance, reducing the loss of workpiece.
①Side-by-side use of two guide shafts effectively prevents workpiece rotation
②Improved accuracy of linear motion and load capacity.
③The combination of guide shaft and linear bushing enables high-speed reciprocal motion.
④Low operational resistance, reducing the loss of workpiece.
Product Picture
Functions of key workpieces in the mechanism
Linear guide shaft: Supporting the workpiece, combining with linear bushing to achieve guiding functionality.
For details, clickLinear Guide Shafts
Linear bushing: Driving the workpiece to move on the guide shaft through the steel ball circulating structure.
For details, clickLinear Bushings
Guide shaft support: Supporting and fixing the guide shaft for effective adjustment of shaft pitch and improved equipment stability.
For details, clickGuide Shaft Posts
Stopper: Performing limit action for adjustment of effective stroke of mechanism
For details, clickStoppers
Linear guide shaft: Supporting the workpiece, combining with linear bushing to achieve guiding functionality.
For details, click
Linear Guide ShaftsLinear bushing: Driving the workpiece to move on the guide shaft through the steel ball circulating structure.
For details, click
Linear BushingsGuide shaft support: Supporting and fixing the guide shaft for effective adjustment of shaft pitch and improved equipment stability.
For details, click
Guide Shaft PostsStopper: Performing limit action for adjustment of effective stroke of mechanism
For details, click
StoppersPrecautions
View of Shaft Cut Section | ①Surface hardness confirmation The standard for hardening layer depth of the quenched guide shaft varies with O.D. dimension and tolerance. Refer to the table below for details:
| |||||||||||||||||||||||
 | ·The hardness of the processed part is reduced after the base metal is annealed. The parts that may be reduced in hardness due to annealing are: | |||||||||||||||||||||||
 | ·Plating of surface treatment No electroplating treatment is applied to the following parts. | |||||||||||||||||||||||
Related Products
| Linear Bushing Standard Type Straight Type | Bearings With Housings T-Shaped | Shaft Collars (Clamp) | ||
 |  |  | ||
| Typical Model: LMU6 | Typical Model: BGHFS6000ZZ-30 | Typical Model: PSCS10-10 | ||
| Advantages: High quality, affordable price, short delivery time | Advantages: Full range, high precision and quality | Advantages: Matching shaft products, full range |
MISUMI Linear Guide Shafts and Rotary Shafts Selection Table
Differentiated Use/Durability of Linear Guide Shafts
Overview of Guide Shaft Machining
Anti-Rust Performance of Metal Material and Surface Treatment
Differentiated Use/Durability of Linear Guide Shafts
Overview of Guide Shaft Machining
Anti-Rust Performance of Metal Material and Surface Treatment
Application Industries
| Medical | Semiconductor | Electronic & Electrical | ||
 |  |  | ||
| Smart Phones | Food | Automotive | ||
 |  |  |
Basic Information
| Basic Shape | Solid | End Shape (Left) | Tapped | End Shape (Right) | No Machining |
|---|---|---|---|---|---|
| Shaft End Perpendicularity | Perpendicularity (0.2) | Material | S45C | Heat Treatment | Induction Hardened |
| Surface Treatment | Hard Chrome Plating | Shaft Fit Tolerance | g7 | Precision | Standard |
| Fastening Tool Type | With Wrench Slot |
Specification/Dimensions
-
Shaft Dia. D(Ø)
-
Length L(mm)
-
Tapped M (Coarse Thread)(mm)
-
SC(mm)
-
type
- E-PSFJC
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 7 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 are stainless steel guide shafts rusting?
- Answer: Guide shafts are made of SUS440C, which are quenched for better abrasion resistance, but the material itself is weak to corrosion. Therefore, please select hard chrome plated products for applications with higher anti-rust requirements.
- Question: Why is the hardness measured on the end face center is rather low in contrast with high hardness indicated for guide shaft products in the catalog?
- Answer: As the guide shaft is high-frequency quenched, a hardening layer of certain depth will form on the outer circle of the guide shaft. To ensure toughness, the material will retain original hardness at the center of the guide shaft.
- Question: What are the advantages of combining guide shaft with linear bushing?
- Answer: Due to rolling friction fit with the linear bushing, the guide shaft can achieve high-accuracy linear motion, causing less friction resistance to the workpiece, thus suitable for extended continuous operation.
- Question: How to select models of shaft products requiring a length of 100.5mm?
- Answer: The total length can be customized in 0.1mm increments with LKC alteration.
- Question: Why is the end face of hard chrome plated guide shaft rusting?
- Answer: The guide shaft is cut after surface treatment during material preparation. Thereafter, no surface treatment will be performed, so the cut surface is not hard-chrome plated, thus causing the end face to rust.
- Question: When combined with linear bushing, some guide shafts fit closely, while others fit with clearance. Does it affect usage?
- Answer: The guide shaft and linear bushing fit with each other by point-contact rolling through the steel ball circulating structure. Due to the point-contact and non-interference fit, some clearance between the shaft and the bushing is normal, which will not affect usage. The use of this structure greatly reduces frictional resistance and improves service life of the workpiece.
- Question: Is the stainless steel material of MISUMI guide shafts imported?
- Answer: Both the bearing steel (SUJ2) and stainless steel (SUS440C) of MISUMI guide shafts are materials imported from Japan.
- Question: I hope to know about the detection method and specification accuracy of the straightness of guide shafts.
- Answer: Support both ends of the guide shaft with V-shaped blocks, rotate the shaft for 1 turn at any point, and measure the amplitude of the dial meter. 1/2 of the amplitude measurement value is the straightness. Straightness varies with outer diameter and length.
- Question: How much is the perpendicularity accuracy of guide shaft?
- Answer: The perpendicularity of guide shaft is 0.2 for standard type and 0.03 for precision type.
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