Linear shaft One End Stepped and Tapped with Wrench Flats

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, Internal Thread, and Wrench Slot - Product Introduction

Specification Overview

Type	Material	Hardness	Surface Treatment	D(mm)	L(mm)
Standard
D tolerance g7
E-SFPG	S45C or GCr15	High-frequency quenching Effective hardened layer depth Please click Surface Hardness Standard S45C or GCr15 55HRC~ SUS440C or equivalent high-hardness corrosion-resistant steel 53HRC or more	-	8 to 30	25 to 1498
E-SSFPG	SUS440C or equivalent high-hardness corrosion-resistant steel
E-PSFPG	S45C or GCr15		Hard Chrome Plating Plating Hardness HV750~ Plating Thickness 3µ or more
E-PSSFPG	SUS440C or equivalent high-hardness corrosion-resistant steel

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. Please click

Rust Prevention Methods

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

■ Tolerance of Section D

D	g7
8	-0.005 -0.020
10	-0.005 -0.020
12	-0.006 -0.024
13
15
16
18
20	-0.007 -0.028
25
30

Alterations

Code

Spec.

LKC

Change L tolerance.
Specification Method LKC

L<200 →L±0.03

When using LKC, the unit for specifying L dimension can be 0.1 mm

Not applicable when D-P ≤ 2

Add flat machining at 1 location
Specified method FC10-E8
FC, E = specified unit 1 mm

D ≤ 30: FC ≤ 5 × D, D ≥ 35: FC ≥ 3 × D

When 1.5 × D<FC, FC ≤ L/2

E=0 or E ≥ 2

Cannot be used together with WFC

D	h
8 to 16	1
20 to 30	2

WFC

2 additional flat surfaces
Specified method WFC10-A8-E20
WFC, A, E = specified unit 1 mm

D ≤ 30: WFC ≤ 5 × D, D ≥ 35: WFC ≥ 3 × D

When 1.5 × D<WFC, 2WFC ≤ L/2

A(E)=0 or A(E) ≥ 2

Cannot be machined on the same surface, cannot be used together with FC

D	h
8 to 16	1
20 to 30	2

Alterations

Code

Spec.

Add a second wrench slot machining.
Specification Method SX15

SX = Specified unit 1 mm

SC+SX+ℓ1 × 2<L

SX ≥ 0
Applicable Conditions Applicable for D=6 or above, only available for types with wrench slot

Cannot be machined on the same plane, cannot be used together with WSC

D	W	ℓ1
6	5	8
8	7
10	8
12	10	10
13	11
15	13
16	14

D	W	ℓ1
18	16	10
20	17
25	22
30	27	15
35	30	15
40	36	20
50	41	20

LFC

Step Surface Machining
Specified Method LFC10-A0

LFC ≤ F

D-M(N) ≥ 1

P	H
6 to 18	1
20 to 40	2
41 or more	2

Change the effective length of the internal thread section to M × 3.
Specified Method MD6 (Change M to MD)
Applicable Conditions D=12 to 30, and M=6 to 20 applicable

Internal thread on one end: MD × 3.5+4 ≤ L

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

Additional processing may result in lower hardness. Refer to

P.36

Specification Table

Part Number		Can be specified down to 1 mm increments			M (Coarse Thread) Selection										Wrench slot size			(Y) Max.
Type	D	L	F	P	M (Coarse Thread) Selection										SC	W	ℓ₁	(Y) Max.
Standard (D Tolerance g7) E-SFPG E-SSFPG E-PSFPG E-PSSFPG	8	25 to 998	2 ≤ F ≤ P × 4	6	3										SC = Can be specified down to 1 mm increments SC+ℓ₁ ≤ L SC ≥ 0 Wrench Slot Details >>Reference (PDF)	7	8	800
	10	25~998		6 to 8	3	4	5									8	8	800
	12	25 to 1198		6 to 10	3	4	5	6								10	10	1000
	13	25 to 1198		6 to 11	3	4	5	6	8							11		1000
	15	25 to 1198		6 to 13	3	4	5	6	8	10						13		1000
	16	25 to 1198		6 to 14	3	4	5	6	8	10						14		1200
	20	25 to 1198		8 to 17		4	5	6	8	10	12					17		1200
	25	25 to 1198		8 to 22		4	5	6	8	10	12	16				22		1200
	30	25 to 1498		9 to 27			5	6	8	10	12	16	20	24		27	15	1500

Product Features

Feature 1: Has high-precision dimensional tolerances and is widely used in various precision equipment.
Feature 2: Uses bearing steel (S45C or GCr15) with excellent wear resistance 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 guidance. Compared to general 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 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.
Guide Shaft with Stepped Ends and Internal Thread | Stepped End Bushings | MISUMI Quality | Imported Japanese Stainless Steel Material

Guide Shaft with Stepped Ends and Internal Thread | Stepped End Bushings | 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 Linear Guide Shaft: Supports components and, when used with linear bushings, provides guiding functionality. 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 shaft spacing, and enhances equipment stability. For details, click Guide Shaft Support Stopper: Serves as a limit, 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

	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 with Wrench Flats

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Product Description

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Service hours

Noted for use