Linear Shaft One End Stepped, Both End 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, One End Stepped, Both Ends with Internal Thread and Wrench Slot - Product Introduction

Specification Overview

Type	Material	Hardness	Surface Treatment	D(mm)	L(mm)
Standard
D tolerance g7
E-SFPPA	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 or more	-	8 to 30	25 to 1498
E-SSFPA	SUS440C or equivalent high-hardness corrosion-resistant steel
E-PSFPA	S45C or GCr15		Hard Chrome Plating Plating Hardness HV750~ Plating Thickness 3µ or more
E-PSSFPA	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.

MISUMI Guide Shaft with Stepped Internal Thread on One End

LKC

Change L dimension tolerance
Specification method LKC
Applicable conditions The maximum L dimension for precision type is 200

Not applicable when D-P ≤ 2
When using LKC, the unit for specifying L dimension can be 0.1 mm

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

WSC

Add wrench slot machining at 2 locations
Specified Method WSC12-X8
Applicable Conditions Suitable for D=6 or above
WSC, X = specified unit 1 mm

WSC+X+ℓ₁ × 2<L

WSC(X) ≥ 0

The two machined planes are not guaranteed to be on the same level

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

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
4 to 5	0.5
6 to 18	1
20 to 40	2
50	3

WFC

Additional machining on 2 surfaces
Specification 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 < WFC, 2WFC ≤ L/2

A(E) = 0 or A(E) ≥ 2

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

D	h
4 to 5	0.5
6 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
	PMC PMS	Change external thread to fine thread Specification method PMC14 (Change P to PMC) PMS14 (Change P to PMS)
	NSC	Change internal thread to fine thread Specification method NSC14 (change N to NSC) Applicable conditions Applicable for D ≥ 12

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										N (Coarse Thread) Select									Wrench slot size			(Y) Max.
Type	D	L	F	P																				SC	W	ℓ₁	(Y) Max.
Type	D	Standard	F	P																				SC	W	ℓ₁	Standard
Standard (D tolerance g7) E-SFPPA E-SSFPA E-PSFPA E-PSSFPA	8	25 to 998	2 ≤ F ≤ P × 4	6	3										3	4	5							SC = Can be specified down to 1 mm increments SC+ℓ₁ ≤ L SC ≥ 0	7	8	1000
	10	25 to 998		6 to 8	3	4	5								3	4	5	6							8	8	1000
	12	25 to 1198		6 to 10	3	4	5	6								4	5	6	8						10	10	1000
	13	25 to 1198		6 to 11	3	4	5	6	8							4	5	6	8						11		1000
	15	25 to 1198		6 to 13	3	4	5	6	8	10						4	5	6	8	10					13		1000
	16	25 to 1198		6 to 14	3	4	5	6	8	10						4	5	6	8	10					14		1200
	20	25 to 1198		8 to 17		4	5	6	8	10	12					4	5	6	8	10	12				17		1200
	25	25 to 1198		8 to 22		4	5	6	8	10	12	16				4	5	6	8	10	12	16			22		1200
	30	25 to 1498		9 to 27			5	6	8	10	12	16	20	24				6	8	10	12	16	20		27	15	1500

P size must satisfy M+3 ≤ P.

When M × 2.5+4+N × 2.5+4 ≥ (Y), the thread bottom hole may penetrate through. When M × 2+N × 2 ≥ (Y), the effective length of the larger diameter threaded hole takes precedence.
At this time, Y must satisfy Y ≥ M × 2.5 + 4 + N or Y ≥ N × 2.5 + 4 + M.

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

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, Both End Tapped with Wrench Flats

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Product Description

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Service hours

Noted for use