Square Rack, Pressure Angle 20°, High Frequency Quenching, Length Configurable

Brand :

MISUMI

Caution

Product Description

Product Overview

Rack is often used together with gears and is a type of mechanical component used for transmission. Allows rotational displacement to be transmitted linearly, and linear displacement to be transmitted rotationally.
Gear rack drive mechanisms can be used in elevators, rail systems, automotive steering systems, machine tools, and actuator feed mechanisms, among other fields.

Dimensional Drawing

■ Hole position configurable	■ Number of holes configurable

Single-End Machining Type
Dimensional Drawing

Metal: L size tolerance (mm)

Accuracy: Cumulative Pitch Error (Unit: µm)

Module	P Tolerance
0.5 to 2.0	-0.1 -0.3
2.5 to 3.0	-0.1 -0.4

Maximum number of holes: 4

A+B+C+D ≤ L-5

Module	L tolerance
0.5 to 2.0	-0.2 to -0.6
2.5 to 3.0	-0.2 to -0.8

Module	Nominal model
Module	100	300	500	1000
0.5 to 1.5	60	100	110	140
2.0 to 3.0	63	105	115	150

Material Specifications

Type		Material	Surface Treatment	Hardness
Designated hole position type	Designated number of holes type
E-RGSAHL	E-LRGSAH	Steel	Black Oxide Film	Tooth Surface High-Frequency Quenching 45 to 55HRC

This product series is processed on one end face only. Please pay attention when purchasing.

The tooth section and hole machining surface are not surface treated.

The tooth section is not ground. If needed, please select the Tooth Grinding Series Products.

For the electronic catalog, please click here to obtain it.

Alteration

Alterations	Additional female thread machining on one end face	Additional female thread machining on both ends
Code	MC	WMC
Spec.

Specification Table

● Specification Table
●Hole Position Specification Type

Part Number			Overall length L can be specified down to 1 mm increments	Hole positions A, B, C, D can be specified down to 1 mm increments	P (Pitch)	W	H	h	M (Coarse Thread)	d1	d2	Z1
Part Number
Type	Module	Hole machining
E-RGSAHL	1.0	N (No hole machining) HT (Reverse Side Threaded Hole) ST (Side Threaded Hole) Z (Side Counterbore)	20 to 980	5 to 975	3.142	17	17	16	M3	3.5	6.5	3.5
	1.5			5 to 975	4.712	17	17	15.5	M4	4.5	8	4.5
	2.0			6 to 974	6.283	24	24	22	M5	5.5	9.5	5.5
	2.5				7.854	24	24	21.5	M5	5.5	9.5	5.5
	3.0				9.425	29	29	26	M5	5.5	9.5	5.5

For stainless steel material, please refer to the dimensions in ( )

Designated number of holes type

Part Number			Total Length L Specify 1 mm	K (Number of Holes)	Hole Pitch B can be specified down to 1 mm increments	P (Pitch)	W	H	h	M (Coarse Thread)	d1	d2	Z1
Part Number
Type	Module	Hole machining
E-LRGSAH	1.0	HT (Reverse Side Threaded Hole) ST (Side Threaded Hole) Z (Side Counterbore)	20 to 980	2 to 12	50 to 500	3.142	17	17	16	M3	3.5	6.5	3.5
	1.5					4.712	17	17	15.5	M4	4.5	8	4.5
	2.0					6.283	24	24	22	M5	5.5	9.5	5.5
	2.5					7.854	24	24	21.5	M5	5.5	9.5	5.5
	3.0					9.425	29	29	26	M5	5.5	9.5	5.5

This product series is processed on one end only. Please pay attention when selecting.

For stainless steel material, please refer to the dimensions in parentheses.

Product Features

Feature 1: Can be converted between rotary motion and linear motion.
Feature 2: Length and mounting hole processing method can be specified.
Feature 3: The teeth are high-frequency quenched, with a hardness of 45-55HRC
Feature 4: The hole processing method can be freely selected: no hole processing, back threaded hole processing, side counterbore processing, or side threaded hole processing.
Feature 5: Optimized cross-sectional shape, better suited for domestic usage environments

Usage Method

■ Linear Motion: Rack and Pinion Drive

Bracket Micro Gear Type Slide Table Assembly
Case 1: Linear Motion Using Gear and Rack Drive

Positioning Mechanism for Basic Frame
Case 2: Linear Motion Using Gear and Rack Drive

Precautions

■ Cutting Method for Rack End Face


Cut according to the length of the effective number of teeth (tooth root)	Cut from the reference surface to the specified length, excluding the teeth.

■ Rack Connection Method
The end face machining accuracy of MISUMI racks is less than the pitch.
Therefore, please leave a gap between the two racks as shown in the diagram below, and connect them after adjusting the pitch using a combination rack (racks with the same module).
Rack Connection Method Instructions

Example of Use

Reference Cases for Gear and Rack Combination

Equipment Name: n-speed Mechanism

Feature 1:	The use of fixed and movable racks in combination with large and small gears doubles the cylinder stroke distance.
Feature 2:	After setting the ratio of the small gear to the large gear to 1:n, the stroke can be converted to n times.
Feature 3:	By placing the moving base side gear on the centerline of the cylinder and symmetrically arranging the fixed rack side gears on both sides, force deviation can be eliminated.
Feature 4:	Install the lower rack (custom-sized holes) or add/remove shims to adjust the position of the rack and pinion.

For more information, please click

n-times speed mechanism

Application Industries

Food	Semiconductor	Smart phone

Medical	Electronic & Electrical Appliances	Lithium battery

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