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Linear Guide Short Block-Low Profile EG Type (ROHS Compliant) (E-ELGH25SAB)

Volume Discount

MISUMI

MiSUMi Economy

MISUMI

Linear Guides Short Blocks-Low Profile
These linear guides or linear slides are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
[Feature]
● Rail Length Minimum/Maximum (mm.): 100 and 1980(3960)
● Assembly Height (mm.): 24, 28, 33, 42,
● Block Type : Short Block Low Profile
● Option: Set (Rail + Block) / Block only
● Material: Carbon Steel 56HRC
[Application]
It is used in a variety of machines such as CNC machines, 3D printers, measuring instruments, and so on.

(i)Caution

**RoHS Compliant Type

Part Number

Configured Part Number is shown.

E-ELGH25SAB

Drawing/Specifications
Part Numbers

Product Overview

The Linear Guide, also known as a guide rail, linear rail, or linear slide rail, is used for linear reciprocating motion applications. It has a higher rated load and linear motion accuracy than linear bearings within the same component volume. It can also bear a certain torque load, achieving high-precision linear motion under heavy load conditions.
Linear Guides are used to support and guide moving parts, performing reciprocating linear motion in a specified direction. They are mainly used in machinery structures that require high precision. Instead of an intermediary medium, rolling steel balls are used between the moving and fixed components of the Linear Guide.

Product Features

Feature 1: Standard Seal for the rail to prevent dirt accumulation in the mounting holes during equipment use.
Feature 2: The rail and sliding block are connected by rolling balls, minimizing wobble, making them suitable for precision-demanding equipment.
Feature 3: Point-to-surface contact results in minimal frictional resistance, achiving fine movement and precise positioning.
Feature 4: Since the balls have their own rolling grooves, the force on the rolling surface is distributed, allowing for a higher load capacity.
Feature 5: Linear Guides are less likely generate frictional heat during operation and are resistant to thermal deformation, making them suitable for high-speed motion.

Example of Use

■About Usage
① MISUMI Linear Guides are equipped with retainers, so steel balls are not easily dislodged when removing the sliding block. However, if the block is removed from the rail at high speed or inserted at an angle, balls may dislodge. Please disassemble and reassemble the block carefully.
②Avoid hitting the ball return cap plate, as this may disrupt ball circulation, resulting in poor sliding performance.
③For rust prevention, it is recommended to choose products with low-temperature black chrome plating or stainless steel SUS440C material.
*Currently this series do not have both low temperature block chorome plating and SUS440C models
misumi经济品直线导轨滑台注意事项

■Maintenance (Lubricant Application)
①Lubricant forms an oil film on the surface of the balls and rail of the Linear Guides, effectively reducing friction and preventing sintering.
Decrease and aging of lubricant can significantly impact the lifespan of the Linear Guide, so please replenish lubricant as needed according to usage conditions.
MISUMI Linear Guides are pre-lubricated at the factory, so they can be used directly.
②Recommended Lubrication Interval:

Typically, lubricate once every 3 months.
Adjust the maintenance interval as needed, with a recommended lubricant check every 100 km.
**The lubrication interval is based on standard travel distance. In harsh environments with severe lubricant aging or contamination, shorten the interval accordingly.

Precautions

To ensure proper usage, Linear Guide installation must meet the following 4 points:

①Ensure no interference in the installation surface shape.
linear-guides安装面要求形状

②Maintain the flatness of the workpiece installation surface within approximately 5μ, or the sliding blocks may slightly deform.
misumi安装面平面度

③Ensure that rail parallelism and height alignment error values are within allowable installation limits.
米思米平行度误差容许值

④Use a standardized installation method.
直线导轨的安装方法linear-guides

For detailed installation instructions,

click here.

Application Example

Mechanism Name: Belt-Driven Conveying Device
Feature 1: Suitable for medium-precision, medium-frequency driving and positioning.
Feature 2: One Linear Guide is centrally configured for compact design.

For more details,

click here.

Application Industries

Medical		Smartphone

Robot		Electronic appliances

Related Documents

For Linear Guide installation instructions,

please refer here.

Dimension

Length L tolerance: ±2mm

This product has no surface treatment; please ensure rust prevention.

Specification Table

■Set(Rail & Block assembled)

Type		Length L (Unit: 1mm)	Block Dimension mm										Guide Rail Dimension mm
Type	Nominal Model		W	B	B1	L1	L2	C	G×h2	L3	H4	H5	W1	W2	H	H2	Counterbored	P	H1	E	Guide Rail Fixing Bolt
																	d2×d1×h1
E-ELGH*SA	15	100～3960	34	26	4	41.1	23.1	26	M4×6	5.7	5.5	6	15	9.5	24	4.5	4.5×7.5×4.5	60	12.5	Please refer to L-Specified Dimension lation Table	M4×16
	20		42	32	6	50.2	29	32	M5×7	12	6	7.5	20	11	28	6	6×9.5×8.5		15.5		M5×16
	25		48	35	6.5	59.5	35.5	35	M6×9	12	8	8	23	12.5	33	7	7×11×9		18		M6×20
	30	200～3960	60	40	10	71.5	41.5	40	M8×12	12	9	9	28	16	42	10	7×11×9	80	23		M8×25

■Single Block

Type		Block Dimension mm
Type	Nominal Model	W	B	B1	L1	L2	C	G×h2	L3	H4	H5
Type	Nominal Model	W	B	B1	L1	L2	C	G×h2	L3	H4	H5
E-ELGH*SAB	15	34	26	4	41.1	23.1	26	M4×6	5.7	5.5	6
	20	42	32	6	50.2	29	32	M5×7	12	6	7.5
	25	48	35	6.5	59.5	35.5	35	M6×9	12	8	8
	30	60	40	10	71.5	41.5	40	M8×12	12	9	9

■Allowable Load

Nominal Model	Basic Rated Load		Static Allowable Moment		Mass
Nominal Model	C（Dynamic） kN	Co（Static） kN	MA・MB kN-m	MC kN-m	Block kg	Guide Rail kg/m
15	3.91	6.86	0.04	0.08	0.09	1.25
20	5.28	9.3	0.06	0.13	0.15	2.08
25	8.32	14.24	0.12	0.23	0.25	2.6
30	11.99	20.51	0.21	0.4	0.45	4.35

■Detailed Dimensions for L-Specified Type
The ends of the rail are cut equally for the L-specified type. The number of rail mounting holes (M) is shown in the table below.
In addition, the formula for calculating the E dimension is as follows:

Nominal Model	15	20	25	30	Number of Mounting Holes M
L	100～131	100～139	100～141	-	2
	132～191	140～199	142～201	200～279	3
	192～251	200～259	202～261	280～343	4
	252～311	260～319	262～321	344～423	5
	312～371	320～379	322～381	424～503	6
	372～431	380～439	382～441	504～583	7
	432～491	440～499	442～501	584～663	8
	492～551	500～559	502～561	664～743	9
	552～611	560～619	562～621	744～823	10
	612～671	620～679	622～681	824～903	11
	672～731	680～739	682～741	904～983	12
	732～791	740～799	742～801	984～1063	13
	792～851	800～859	802～861	1064～1143	14
	852～911	860～919	862～921	1144～1223	15
	912～971	920～979	922～981	1224～1303	16
	972～1031	980～1039	982～1041	1304～1383	17
	1032～1091	1040～1099	1042～1101	1384～1463	18
	1092～1151	1100～1159	1102～1161	1464～1543	19
	1152～1211	1160～1219	1162～1221	1544～1623	20
	1212～1271	1220～1279	1222～1281	1624～1703	21
	1272～1331	1280～1339	1282～1341	1704～1783	22
	1332～1391	1340～1399	1342～1401	1784～1863	23
	1392～1451	1400～1459	1402～1461	1864～1943	24
	1452～1511	1460～1519	1462～1521	1944～2023	25
	1512～1571	1520～1579	1522～1581	2024～2103	26
	1572～1631	1580～1639	1582～1641	2104～2183	27
	1632～1691	1640～1699	1642～1701	2184～2263	28
	1692～1751	1700～1759	1702～1761	2264～2343	29
	1752～1811	1760～1819	1762～1821	2344～2423	30
	1812～1871	1820～1879	1822～1881	2424～2503	31
	1872～1931	1880～1939	1882～1941	2504～2583	32
	1932～1991	1940～1999	1942～2001	2584～2663	33
	1992～2051	2000～2059	2002～2061	2664～2743	34
P	60			80

Nominal Model	15	20	25	30	Number of Mounting Holes M
L	2052～2111	2060～2119	2062～2121	2744～2823	35
	2112～2171	2120～2179	2122～2181	2824～2903	36
	2172～2231	2180～2239	2182～2241	2904～2983	37
	2232～2291	2240～2299	2242～2301	2984～3063	38
	2292～2351	2300～2359	2302～2361	3064～3143	39
	2352～2411	2360～2419	2362～2421	3144～3223	40
	2412～2471	2420～2479	2422～2481	3224～3303	41
	2472～2531	2480～2539	2482～2541	3304～3383	42
	2532～2591	2540～2599	2542～2601	3384～3463	43
	2592～2651	2600～2659	2602～2661	3464～3543	44
	2652～2711	2660～2719	2662～2721	3544～3623	45
	2712～2771	2720～2779	2722～2781	3624～3703	46
	2772～2831	2780～2839	2782～2841	3704～3783	47
	2832～2891	2840～2899	2842～2901	3784～3863	48
	2892～2951	2900～2959	2902～2961	3864～3943	49
	2952～3011	2960～3019	2962～3021	3944～3960	50
	3012～3071	3020～3079	3022～3081	-	51
	3072～3131	3080～3139	3082～3141		52
	3132～3191	3140～3199	3142～3201		53
	3192～3251	3200～3259	3202～3261		54
	3252～3311	3260～3319	3262～3321		55
	3312～3371	3320～3379	3322～3381		56
	3372～3431	3380～3439	3382～3441		57
	3432～3491	3440～3499	3442～3501		58
	3492～3551	3500～3559	3502～3561		59
	3552～3611	3560～3619	3562～3621		60
	3612～3671	3620～3679	3622～3681		61
	3672～3731	3680～3739	3682～3741		62
	3732～3791	3740～3799	3742～3801		63
	3792～3851	3800～3859	3802～3861		64
	3852～3911	3860～3919	3862～3921		65
	3912～3960	3920～3960	3922～3960		66
P	60			80

Material Specification

Type	Set(Rail & Block Assembled) / Single Item	[ M ] Material	[ H ] Hardeness
E-ELGH*SA	Set(Rail & Block Assembled)	Carbon Steel	58HRC～
E-ELGH*SAB	Single block	Carbon Steel	58HRC～

Guide Rail Nominal	Grease Nipple Thread Nominal * Thread Pitch * Thread Length	Grease Nipple Material
15	M40.75	Brass
20	M616
25
30

Alterations

Alterations	Code	Spec.
2-blocks Specification	B2	An additional block is added to the single block product, delivered as a 2-block assembly If the rail is too short to accommodate multiple blocks, the blocks will be packaged separately
3-blocks Specification	B3	2 additional blocks are added to the single block product, delivered as a 3-block assembly If the rail is too short to accommodate multiple blocks, the blocks will be packaged separately
4-blocks Specification	B4	3 additional blocks are added to the single slider product, delivered as a 4-block assembly If the rail is too short to accommodate multiple blocks, the blocks will be packaged separately
Parallel Use of Dual Axes	W2	The height tolerance H of two guide rails is set within 0.02mm The width tolerance N of two guide rails is set within 0.02~0.03mm Please ensure to order in actual quantity (in pairs like 2 pcs)
Specify End Distance	Specify Left End Distance ES	The end distance is specified in units of 0.5mm. If the specified end distance is greater than or close to the hole spacing, cutting may cause a hole to break. If only one side is specified, the other side will be cut according to the remaining length. EB+ES=2E EB+ES = 2E If it cannot be cut, it will be divided equally according to the standard.
Specify End Distance	Specify Right End Distance EB

Precision

Unit：mm

Dimensional Precision Type	Precision Standard	15,20	25,30
Low & High Profile Linear Guide	Height H Dimensional Tolerance	±0.1	±0.1
	Height H Variation	0.02	0.02
	Width N Dimensional Tolerance	±0.1	±0.1
	Width N Variation	0.02	0.03

●Travel Parallelism

Guide Rail Length (mm)	Precision Grade (μm)
100-200	19
200-300	21
300-500	23
500-700	28
700-900	30
900-1100	33
1100-1500	36
1500-1900	39
1900-2500	43

Selection Calculation

The life of a Linear Guide is divided into
① Travel Distance Life

When Linear Guides bear the load and performs linear reciprocating motion, due to the repetitive stress frequently applied to the rolling elements (balls) or rolling surfaces (rails), a material fatigue spalling phenomenon called flaking occurs. The total travel distance before the first occurrence of this spalling is called the life of the Linear Guide.

② Rated Life

The rated life refers to the total distance that 90% of a group of identical Linear Guides can travel under identical conditions without spalling. The rated life can be calculated using the basic dynamic rated load and the load applied to the Linear Guide according to the following formula.
额定寿命

In practical use of Linear Guides, load calculations should be performed first. It is challenging to calculate the load in linear reciprocating motion due to vibrations or impacts during movement, and the distribution of vibration or impact relative to the linear guide should be considered. In addition, temperature also significantly affects life expectancy. When all these factors are combined, the above formula is modified as follows.
额定寿命

③ Operating Time Life

The service life can be calculated by obtaining the travel distance per unit time. When the stroke length and the number of strokes are constant, it can be calculated using the following formula.
运行时间寿命

: 30; 45; 60

Part Number
E-ELGH25SAB

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Rail Length L (mm)	Rail Width W1 (mm)	Assembly Height H (mm)	Nominal Part Number	Set / Single Item	Basic Load Rating: Dynamic Load (N)	Basic Load Rating: Static Load (N)	Allowable Static Moment MA (N⋅m)	Allowable Static Moment MB (N⋅m)	Allowable Static Moment MC (N⋅m)	Rail Mounting Hole Pitch (mm)	L Dimension Type	Applicable Linear Guide
	SGD 18.90	1 Piece(s)	Available	9 Day(s)	-	-	33	25	Block Only	8320	14240	120	120	230	60	-	-

Basic Information

Block Type	Short Block	Rail Type	Standard Rail	Preload	Normal Clearance
Accuracy Standards	Standard Grade	Material	Carbon Steel	Ball Arrangement	Medium, Heavy Load Type
No. of Blocks	1	Retainer	N/A	Lubrication Type	Lubrication Applied
Rolling Element	Ball	Surface Treatment	none	Lubrication Type	Filled with Lithium soap based grease
Block Material	Carbon Steel	Material-Ball	Carbon Steel

Please check the type/dimensions/specifications of the part E-ELGH25SAB in the Linear Guide Short Block-Low Profile EG Type (ROHS Compliant) series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Rail Length L(mm)
Clear
Rail Width W1(mm)
15

20

23

28
Clear
L Dimension Type
- Configurable Type
Clear
Applicable Linear Guide
E-ELG
Clear
type
- E-ELGHSA
Clear
Assembly Height H(mm)
24

28

33

42
Clear
Nominal Part Number
15

20

25

30
Clear
Set / Single Item
- Set
- Block Only
Clear
Rail Mounting Hole Pitch(mm)
60

80
Clear

Days to Ship

All

9 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Similar Part Numbers

Part Number
E-ELGH15SAB
E-ELGH20SAB
E-ELGH30SAB

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Rail Length L (mm)	Rail Width W1 (mm)	Assembly Height H (mm)	Nominal Part Number	Set / Single Item	Basic Load Rating: Dynamic Load (N)	Basic Load Rating: Static Load (N)	Allowable Static Moment MA (N⋅m)	Allowable Static Moment MB (N⋅m)	Allowable Static Moment MC (N⋅m)	Rail Mounting Hole Pitch (mm)	L Dimension Type	Applicable Linear Guide
SGD 10.90	1 Piece(s)	Available	9 Day(s)	-	-	24	15	Block Only	3910	6860	40	40	80	60	-	-
SGD 12.70	1 Piece(s)	Available	9 Day(s)	-	-	28	20	Block Only	5280	9300	60	60	130	60	-	-
SGD 30.80	1 Piece(s)	Available	9 Day(s)	-	-	42	30	Block Only	11990	20510	210	210	400	80	-	-

Miniature Linear Guides - Standard Blocks, Light Preload / Slight Clearance	Miniature Linear Guides - Wide Rails - Standard Blocks, Light Preload / Slight Clearance	Linear Guides for Heavy Load - Normal Clearance

Representative Model：SSEB10-55	Representative Model：SSEBW12-200	Representative Model：SXR24-280

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Linear Guide Short Block-Low Profile EG Type (ROHS Compliant) (E-ELGH25SAB)

(i)Caution

Basic Information

Configure

Specification/Dimensions

Rail Length L(mm)

Rail Width W1(mm)

L Dimension Type

Applicable Linear Guide

type

Assembly Height H(mm)

Nominal Part Number

Set / Single Item

Rail Mounting Hole Pitch(mm)

Days to Ship

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