Linear shaft One End Stepped and Tapped

Brand :

MISUMI

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Product Description

This is an economy item, The price is cheaper than the MISUMI standard product.

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

MISUMI Guide Shaft with Stepped End and Internal Thread Product Introduction

Specification Overview

Type				Material	Hardness	Surface Treatment	D (mm)	L (mm)
One end stepped tapped type		One End Stepped
Standard		Standard
D tolerance g7	D tolerance f8	D tolerance g7	D tolerance f8
E-SFAG	-	E-SFAC	-	S45C or GCr15	High-frequency quenching For effective hardened layer depth, please click Surface Hardness Standard S45C or GCr15 55HRC~ SUS440C or equivalent high-hardness corrosion-resistant steel 53HRC	-	8 to 30	25 to 1498
E-SSFAG	-	E-SSFAC	-	SUS440C or equivalent high-hardness corrosion-resistant steel
E-PSFAG	-	E-PSFAC	-	S45C or GCr15		Hard Chrome Plating Plating Hardness HV750~ Plating Thickness 3µ or more
E-PSSFAG	-	E-PSSFAC	-	SUS440C or equivalent high-hardness corrosion-resistant steel
-	E-PSFGG	-	E-PSCGC	S45C Equivalent	-	Hard Chrome Plating Plating Hardness HV750~ 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. For rust prevention methods, please click

Rust Prevention Methods

If used together with linear bushings, please select products with high-frequency quenching.

■ Tolerance of Section D

D	g7	f8
8	-0.005 -0.020	-0.013 -0.035
10
12	-0.006 -0.024	-0.016 -0.043
13
15
16
18
20	-0.007 -0.028	-0.020 -0.053
25
30

Alterations

Code

Spec.

MISUMI Guide Shaft with Stepped Internal Thread on One End

LKC

Change L tolerance.
Specification Method LKC
Applicable Conditions The maximum L size for precision type is 200

Not applicable when D-P ≤ 2
When using LKC, the L size can be specified in 0.1 mm units

L<200 →L±0.03
200 ≤ L<500 →L±0.05
L ≥ 500 →L±0.1

Additional Wrench Slot Machining
Specification Method SC5

SC = Specified unit 1 mm

SC + ℓ₁ < L

SC = 0 or SC ≥ 1
Applicable Conditions D = 8 or above applicable

Cannot be used together with WSC

D	W	ℓ₁
8	7	8
10	8	8
12	10	10
13	11
15	13

D	W	ℓ₁
16	14	10
20	17
25	22
30	27	15

Add flat machining at 1 location
Specified Method FC10-E8
Applicable Conditions

Not applicable for precision type
FC, E = specified unit 1 mm

FC ≤ 3 × D

When 1.5 × D

E = 0 or E ≥ 2

Cannot be used together with WFC

D	h
8 to 18	1
20 to 40	2
50	3

WFC

Additional machining on 2 surfaces
Specified Method WFC8-A8-E4
Applicable Conditions

Not applicable for precision type
WFC, A, E = specified unit 1 mm

WFC ≤ 3 × D

When 1.5 × D

A(E) = 0 or A(E) ≥ 2

The two machined surfaces are not guaranteed to be on the same horizontal plane and cannot be used together with FC

D	h
8 to 18	1
20 to 40	2
50	3

Alterations	Code	Spec.
	RC	Add one 90-degree flat machining location Specification method RC10 Applicable conditions D=10 to 30 applicable Not suitable for precision type Cannot be used together with WRC
	WRC	Add machining of two additional 90-degree flat surfaces Specification method WRC10-Y10 Applicable conditions Applicable for D=10 to 30 Not suitable for precision type Cannot be used together with RC The two machined flat surfaces are not guaranteed to be on the same plane
● 1 keyway location: KC ● 2 keyways: WKC	KC WKC	Additional Keyway Specification Method KC10-G10 WKC10-C8-KC10-G10 Applicable Conditions Only applicable for D=12·16·20·25·30 Not applicable for precision type

When multiple alteration is selected, the machining parts need to be spaced by more than 2 mm.

Additional processing may result in reduced hardness.

Specification Table

Part Number		Can be specified down to 1 mm increments			M (Coarse Thread) Selection										(Y) Max.
Type	D	L	F	P	M (Coarse Thread) Selection										(Y) Max.
Standard	8	25 to 998	2 ≤ F ≤ P × 4	6	3										1000
One end stepped tapped type (D Tolerance g7) E-SFAG E-SSFAG E-PSFAG E-PSSFAG (D Tolerance f8) E-PSFGG One-end stepped type (D Tolerance g7) E-SFAC E-SSFAC E-PSFAC E-PSSFAC (D Tolerance f8) E-PSCGC	10	25 to 998		6 to 8	3	4	5								1000
	12	25 to 1198		6 to 10	3	4	5	6							1000
	13	25 to 1198		6 to 11	3	4	5	6	8						1000
	15	25 to 1198		6 to 13	3	4	5	6	8	10					1000
	16	25 to 1198		6 to 14	3	4	5	6	8	10					1200
	20	25 to 1198		8 to 17		4	5	6	8	10	12				1200
	25	25 to 1198		8 to 22		4	5	6	8	10	12	16			1200
	30	25 to 1498		9 to 27			5	6	8	10	12	16	20	24	1500

P size must satisfy M+3 ≤ P.

When M × 2.5+4 ≥ Y, the thread bottom hole may penetrate through.

Product Features

Feature 1: High dimensional accuracy tolerance, widely used in various precision equipment.
Feature 2: Uses bearing steel with excellent wear resistance (S45C or GCr15) and SUS440C or equivalent 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 bushing 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

MISUMI High Precision Straight Guide Shaft with Stepped End and Internal Thread - Selection Catalog

(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 equivalent 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.
Stepped Inner Thread Type Guide Shaft Bushing (One End), MISUMI Quality, Imported Japanese Stainless Steel Material

Stepped Inner Thread Type Guide Shaft Bushing (One End), MISUMI Quality, Imported Japanese Stainless Steel Material

(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 may rust if hard chrome plating is not applied.

Example of Use

Standard Linear Motion Mechanism	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.
Sample Image


Actual Product Image	Function of Key Components in the Mechanism - Guide Shaft: Supports the workpiece and, when used with linear bushings, provides a guiding function. Click for details Linear guide shaft - Linear Bushing: Uses a ball circulation structure to move the workpiece along the guide shaft. For details, click Linear Bushing - Guide Shaft Support: Supports and secures the guide shaft, effectively adjusts the shaft spacing, and improves the stability of the equipment. Click for details Shaft Support - Stopper: Serves as a limiter, used to adjust the effective stroke of the mechanism For more details, click Stopper

Application Industries

Medical	Semiconductor	Electronic & Electrical Appliances

Smart phone	Food	Automotive

linear Bushing Standard type Straight type	Bearing housing set T-type	Shaft Collar Slit

Typical model: LMU6	Typical model: BGHFS6000ZZ-30	Typical model: PSCS10-10
Advantages: high quality, low price, short delivery time	Advantages: full range, high precision and high quality	Advantages: full range of matching shaft products

Linear shaft One End Stepped and Tapped

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Product Description

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Service hours

Noted for use