Miniature Linear Guides - Long Blocks, Light Preload

Brand :

MISUMI

Caution

We will stop the sale of Carbon Steel Miniature Linear Guide in 2021.
End of Sale Notification for MISUMI Carbon Steel Miniature Linear Guide Products
Delivery times for some of our products may be delayed as national government authorities have imposed limit of capacity at our production sites.

Product Description

Miniature Linear Guides - Long Blocks, Light Preload
These linear guides or linear slides are factory automation components. They offer a wide variety of sizes to choose from.
[Feature]
● Rail Length Minimum/Maximum (mm.): 40 and 700
● Assembly Height (mm.): 6, 8, 10, 13, 16 and 20
● Accuracy Standards : Standard Grade, High Grade and Precision Grade
● Block Type : Long Block
● Material: Stainless Steel 56HRC
[Application]
It is used in a variety of machines such as CNC machines, 3D printers, measuring instruments, and so on.

Miniature Linear Guides, Long Blocks

Rail / block Surface treatment Material (hardness) *1	Rail length Type *2	No. of blocks *3	Preload / accuracy A			Lubrication unit (MX) With/without B	Height (H) C	Grease D *4
			Light preload		Slight clearance
			Precision grade	High grade	Normal grade
No surface treatment Stainless steel [SUS440C equivalent] (56HRC–)	Standard length (fixed length)	1	SSELBV	SSELB	SSELBZ	Blank: without -MX: with	6 8 10 13 16 20	Blank: standard G: G grease L: L grease Y: Y grease H: H grease
	Standard length (fixed length)	2	SSEL2BV	SSEL2B	SSEL2BZ
	1 mm increments (configurable length)	1	SSELBLV	SSELBL	SSELBLZ
	1 mm increments (configurable length)	2	SSEL2BLV	SSEL2BL	SSEL2BLZ
Low-temperature black chrome plating Stainless steel [SUS440C equivalent] (56HRC–)	Standard length (fixed length)	1	-	RSELB	-	None	8 10 13 16 20	Blank: standard G: G grease L: L grease Y: Y grease H: H grease
	Standard length (fixed length)	2	-	RSEL2B	-
	1 mm increments (configurable length)	1	-	RSELBL	-
	1 mm increments (configurable length)	2	-	RSEL2BL	-

*1 For the material of each part, see MISUMI linear guide product information.
*2 If the required rail length is not available as a standard (fixed) length, select 1 mm increments (configurable length).
*3 For 3- or 4-block products, select the 1-block part number and specify "B3 (3 blocks)" or "B4 (4 blocks)" as additional machining.
*5 Low-temperature black chrome plated products are limited to a maximum of 2 blocks.
*4 MX types (with lubrication unit) are available with standard grease only.
H6 is not available in normal grade or precision grade.
Heat resistance temperature is −20 to 80°C.
Not possible: Blocks and rails cannot be purchased separately. (They are also not available through the non-catalog product service.)
Part number configuration

Type	Height H	Grease	-	Rail length L	-	Additional machining
A B	C	D
SSELB	10		-	275			(SSELB10-275)
SSEL2BLZ-MX	10		-	289	-		(SSEL2BLZ-MX10-289)
RSELB	13	G	-	670	-	MC-RLC	(RSELB13G-670-MC-RLC)

For configurable-L types, the G dimension differs from the table below.
Not possible: Blocks and rails cannot be purchased separately. (They are also not available through the non-catalog product service.)

H and W2 dimensional accuracy

Type	Accuracy standard	Assembled height (H)	Accuracy (μm)
			Precision grade	High grade		Normal grade
			Precision grade	Surface treatment None	Low-temperature black chrome plating	Normal grade
Miniature linear guide	Dimensional tolerance of height H	6–20	±10	±20	+30 -20	±20
	Pair variation of height H		7	15	15	40
	Dimensional tolerance of width W2		±15	±25	±25	±25
	Pair variation of width W2		10	20	20	40

L dimensional tolerance (unit: mm)

L range	Tolerance
25 ≤L≤ 400	0 -0.8
400 <L≤ 1000	0 -1.0

Pair variation of height is the difference between the minimum and maximum height of multiple blocks assembled on one rail.
Pair variation of width is the difference between the minimum and maximum width between the rail and the multiple blocks assembled on it.
The accuracy of low-temperature black chrome plated miniature linear guides is as shown above.
The sliding resistance is higher than normal: approx. 1.2 N or less.

Dimensional tolerances of other symbols

Dimension range		Tolerance (mm)
Over	Up to	Tolerance (mm)
0.5	3	±0.1
3	6	±0.1
6	30	±0.2
30	120	±0.3
120	400	±0.5
400	1000	±0.8
1000	2000	±1.2

Per JIS B 0405-1991 class m (medium)

Specifications

Type				L *5	Block dimensions								Rail dimensions
Type		MX (with/without)	H		W	L1	B	C	S×ℓ	L2	K	Cb	W1	W2	H1	Ca	Counterbored hole	F	G *6
1 block	2 blocks	MX (with/without)	H		W	L1	B	C	S×ℓ	L2	K	Cb	W1	W2	H1	Ca	d1×d2×h	F	G *6
SSELB SSELBV SSELBZ SSELBL SSELBLV SSELBLZ RSELB RSELBL	SSEL2B SSEL2BV SSEL2BZ SSEL2BL SSEL2BLV SSEL2BLZ RSEL2B RSEL2BL	-	6	40–145 (70)	12	21	8	-	M2×1.5	13.3	4.5	0.3	5	3.5	4	0.3	2.4×3.5×1	15	5
		-	8	40–310 (85)	17	32	12	13	M2×2.5	22	6.5	0.3	7	5	4.7	0.3	2.4×4.2×2.3	15	5
		Blank: without -MX: with	10	55–635 (95)	20	40	15	16	M3×3	29	7.8	0.3	9	5.5	5.5	0.3	3.5×6×3.5	20	7.5
			13	70–970 (120)	27	45.8	20	20	M3×3.5	31.8	10	0.5	12	7.5	7.5	0.5	3.5×6×4.5	25	10
			16	110–990 (150)	32	58.3	25	25	M3×4	43.3	12	0.5	15	8.5	9.5	0.5	3.5×6×4.5	40	15
			20	160–1000 (220)	40	67.7	30	30	M4×6	52.3	15	0.5	20	10	11	0.5	6×9.5×5.5	60	20

*5 Values in ( ) are the minimum rail lengths for 2-block types.
*5 For 1 mm increments (configurable length), H20 is limited to a maximum of 939 mm.
*6 For configurable-L types, both ends of the rail are cut equally. In that case the G dimension differs from the table.
H dimensions 6 and 8 come with screws or bolts for rail mounting. H6: cross-recessed pan head machine screw No. 0, type 1 (M2×6). H8: hexagon socket head cap screw (M2×6).
Other sizes do not include them.
Align and fix the reference surfaces (the side with the straight groove) of both the rail and the block correctly. For details, see "Mounting and handling" below.
Waterproof specifications are not available.
Standard rail lengths (fixed length)
The table below lists the standard rail lengths for each size.

Height ( H )	Rail length ( L )
6	(40)	(55)	70	85	100	115	130	145
8	(40)	(55)	(70)	85	100	115	130	145	160	175	190	205	220	235	250	265	280	295	310
10	(55)	(75)	95	115	135	155	175	195	215	235	255	275	295	315	335	355	375	395	415	435	455	475	495	515	535	555	575	595	615	635
13	(70)	(95)	120	145	170	195	220	245	270	295	320	345	370	395	420	445	470	495	520	545	570	595	620	645	670	695	720	745	770	795	820	845	870	895	920	945	970
16	(110)	150	190	230	270	310	350	390	430	470	510	550	590	630	670	710	750	790	830	870	910	950	990
20	(160)	220	280	340	400	460	520	580	640	700	760	820	880	940	1000

Lengths in ( ) are not available as standard products for 2-block types.

Basic load ratings, static allowable moments, mass, frictional resistance (required thrust) and sliding resistance (seal resistance)

kgf=N×0.101972

Height (H)	Basic load rating*8		Static allowable moment						Mass
	C (dynamic) kN	Co (static) kN	1 block			2 blocks in contact*9			Block kg	Guide rail kg/m
	C (dynamic) kN	Co (static) kN	MA N·m	MB N·m	MC N·m	MA N·m	MB N·m	MC N·m	Block kg	Guide rail kg/m
6	0.6	1.0	1.8	1.8	2.3	8.3	8.3	4.6	0.005	0.13
8	1.6	2.4	7.5	7.5	9.0	22.9	22.9	18.0	0.016	0.19
10	2.2	3.7	12.3	12.3	13.0	46.4	46.4	26.0	0.03	0.31
13	3.5	5.3	24.5	26.4	32.3	73.9	73.9	64.6	0.06	0.61
16	5.8	8.7	57.8	62.6	67.6	172.1	172.1	135.2	0.10	1.02
20	7.2	13.5	80.7	80.7	138.2	203.2	203.2	276.4	0.18	1.65

*8 The basic load rating is the same in all 4 directions acting on the block (radial, reverse radial and lateral directions). The guide can be used in any orientation.
*9 The static allowable moments with 2 blocks in contact are reference values, not guaranteed values.
As a guide, the allowable load and allowable moment of the linear guide are the values (table above) divided by the static safety factor fs (table below).
Example: allowable load of H10 under normal operating conditions (kN) ⇒ 3.7/2 = 1.85 (approx. 189 kg)
The frictional resistance (required thrust) when actually using a linear guide varies with the applied load and other factors.
* Sliding resistance values are calculated reference values, not guaranteed values.
Static safety factor (lower limit of fs)

Operating conditions	Lower limit of fs
Normal operating conditions	1–2
When smooth running performance is required	2–4
With vibration or impact	3–5

Allowable load (N) ≤ Co/fs
Allowable moment (N·m) ≤ (MA, MB, MC)/fs fs: static safety factor, Co: basic static load rating
MA, MB, MC: static allowable moments (N·m)
Frictional resistance (required thrust)
In a linear guide the rolling elements roll, so frictional resistance is lower than in a sliding guide, but it varies with the applied load, speed and lubricant characteristics.
Frictional resistance increases especially when a moment is applied or when preload is given. Seal resistance varies with the seal lip interference and the lubricant condition, but it is not proportional to the applied load and always shows a constant value. Frictional resistance is obtained from the following formula.
F = μ·w + f
F: frictional resistance (N)
μ: dynamic friction coefficient w: applied load (N)
f: sliding resistance (seal resistance)
Dynamic friction coefficient

Type	Dynamic friction coefficient (μ)
Miniature linear guide	0.004–0.006
Medium-load linear guide	0.002–0.003

Calculation example
Conditions: miniature linear guide (standard rail), assembled height (H): 10 ... sliding resistance (seal resistance): 0.5 (N)
Dynamic friction coefficient (μ): 0.005
Applied load: 150 (N)
F (frictional resistance) = 0.005×150 + 0.5 = 1.25 (N)
Mounting and handling

Reference surfaces and mounting orientation

The reference surface is the side face of the block and rail that carries the reference mark (groove) (Fig. A). Always use the guide with the reference surfaces aligned with each other.
Mounting orientations such as those in Fig. B are possible. The basic load rating is the same for all of them.

Fig. A

Fig. B

Precautions for use

The retainer (wire) prevents the balls from falling out, but care is required when removing or fitting the block.
If blocks and rails are swapped and recombined, radial clearance and accuracy cannot be guaranteed.
Rails cannot be joined end to end.
Linear guide accuracy is guaranteed after the rail is fixed (after the rail screws are tightened and the rail is pressed against the reference surface).
Slight bending of the rail is corrected when the rail is fixed, so it causes no problem in use.

Grease

Standard grease at shipment: pre-packed with lithium soap-based grease (Multemp PS No. 2, Kyodo Yushi).
When lubrication unit MX is selected, the standard grease is TOUGHLIX GREASE MP2 (JX Nippon Oil & Energy (now ENEOS)).
Greasing with a different grease brand is not recommended. Use grease of the same brand.
Apply grease directly to the rail. After applying, move the block to spread the grease.

Grease nipple position when lubrication unit MX is selected

Miniature types have no grease nipple or lubrication hole.
When lubrication unit MX is selected: with the reference surface facing you, the grease nipple is fitted in the orientation shown below.

Lubrication unit

Advantages of lubrication unit MX
Contains a built-in oil-impregnated porous core component.
Achieves long-term maintenance-free operation.
Reduces maintenance costs.
Ideal for locations where lubrication is impossible by design.

Other

Side seals are not available separately as standard parts.

Additional machining

Additional machining
Specification

MC: Notes

Rail counterbored holes → tapped holes

Changes the counterbored holes for fixing the guide rail to tapped holes.
Not applicable to H6 with L 101 or more, H8 with L 131 or more, H10 with L 276 or more, H13 with L 471 or more, H16 with L 671 or more, or H20 with L 701 or more.
See the table below for the tapped hole size after the change.

H	Tapped hole size
6	M 2.6
8	M 3
10	M 4

H	Tapped hole size
13	M 4
16	M 5
20	M 6

RLC

LLC: left end face cut
RLC: right end face cut
Cuts the end face of the rail.
The rail is cut with the marked side facing you (reference surface at the back).

(as shown in the image on the left)

See the table below for the length of rail to be cut.

H	Cut length	N
10	2.5	5
13	5
16	10

The overall length is shortened by the amount cut.
Example: the L dimension of SSELB13-95-LLC becomes 90 mm.
Applicable to fixed-length types (standard rail lengths) only.
Not applicable to H6, H8 or H20.

Dual-axis parallel use

Specify when using two axes in parallel.
Keeps the height pair variation of H between the two rails within 15 µm.
Shipped as a matched set of 2 rails.
Order an even number of rails. (The number of sets cannot be specified.)
Applicable to high grade only.
Not applicable to low-temperature black chrome plated products.
Not applicable to H6, H8 with L 145 or more, H10 with L 295 or more, or H13 with L 495 or more.
B3
B4
B3: additional block (3 in total)
B4: additional blocks (4 in total)
3-block specification
4-block specification
Shipped with 3 (4) blocks mounted.
There is a minimum length limit for L (rail length).
See the table "Minimum rail length when B3 or B4 is specified" below.
Specify the part number as a 1-block type.
(× SSEL2B10-215-B4)
B4 (4 blocks) is not applicable to H6 or H8.
Not applicable to low-temperature black chrome plated products.

Minimum rail length when B3 or B4 is specified

H	B3 (3 blocks)	B4 (4 blocks)
6	85	−
8	115	−
10	155	195
13	170	220
16	230	270
20	280	340

Related parts: part number cross-reference

Height ( H )	Linear guide Clamper	Rail mounting hole Cap	Height adjustment block for miniature linear guides
	Linear guide Clamper		S45C equivalent Electroless nickel plating		Aluminum alloy White anodize
	For standard rail		Reference side	Free side	Reference side	Free side

6	−	−	−	−	−	−
8	−	−	GETA8	GETE8	AGETA8	AGETE8
10	−	−	GETA10	GETE10	AGETA10	AGETE10
13	SECK13	PACK-SGLC3	GETA13	GETE13	AGETA13	AGETE13
16	SECK16	PACK-SGLC3	GETA16	GETE16	AGETA16	AGETE16
20	−	−	GETA20	GETE20	AGETA20	AGETE20

There are no bellows compatible with MISUMI linear guides.

Basic information

Industry-standard long block type. Consider the light-preload type, which offers excellent accuracy and rigidity, first. Manufactured by Suruga Production Platform Co., Ltd. Suruga Production Platform builds its business on precision machining technology that requires micron-level accuracy.
Suruga precision machine parts are also used in cutting-edge fields such as the aerospace and automotive industries.

Notes

If you require the "dual-axis parallel use" additional machining, order an even number of rails (2, 4, etc.).