Flanged Linear Bushing - Standard, Center Flanged, Double[RoHS Compliant]

Brand :

MISUMI

Caution

Bushings are applied with anti-rust oil harmless to lubricants. After cleaning (recommended cleaning method: ultrasonic cleaner or white kerosene) and drying the bushings, grease application is recommended before use.
Some of the current product code is scheduled to be discontinued by end of Jul 2025.
We apologize for the inconvenience. Similar alternative products will be posted after the date.

Product Description

RoHS10 compliant.
Medium-precision linear bushing with relaxed O.D. tolerances such as I.D. and L dimension.

Dimensional Drawing of Linear Bushings

Type Linear Bushings				Outer Cylinder			Balls	Retainer	Operating Ambient Temperature	[A] Accessory
	Round Flange	Square flange	Compact Flange	[M] Material	[H] Hardness	[S] Surface Treatment	[M] Material	[M] Material
Standard Specification	C-LHMRW	C-LHMSW	C-LHMCW	SUJ2 Equivalent	58HRC or more	—	SUJ2 Equivalent	Plastic	－20 to 80°C	Seal [M] Material Nitrile Rubber
	C-LHMRWM	C-LHMSWM	C-LHMCWM			Electroless Nickel Plating
High Temperature Specifications	—	C-LHMSWF-N	—			—		Stainless Steel	－20 to 120°C	—
	C-LHMRWMF-N	—	—			Electroless Nickel Plating

[ ! ] No seal supplied for high temperature specifications (C-□□F-N).

Specification Table of Linear Bushings

Ordering Example		Part Number (Type, dr)
		C-LHMRW20 C-LHMSWM30

	dr		D			L	(ℓ)	H	(T)	d	d1	t	P.C.D.	W	F	A	K	Eccentricity (Max.)	Balls Rows	* Perpendicularity	Basic Load Rating		Allowable Static Moment (N⋅m)	Reference Mass (g)
	Tolerance		Surface Treatment Not Provided Tolerance	Surface Treatment Provided Tolerance		Tolerance															Basic Load Rating			Reference Mass (g)
	Tolerance		Surface Treatment Not Provided Tolerance	Surface Treatment Provided Tolerance		Tolerance															C (Dynamic) N	Co (Static) N		Round Flange	Square flange	Compact Flange
6	+0.003 -0.013	12	+0.006 -0.013	+0.006 -0.020	35	±0.6	15	28	5	3.5	6	3.1	20	22	—	20	18	0.03	4	0.03	324	529	2.18	31	25	28
8		15	+0.006 -0.013	+0.006 -0.020	45		20	32	5	3.5	6	3.1	24	25	—	24	21				431	784	4.31	51	43	47
10		19	+0.006 -0.018	+0.006 -0.023	55		24.5	40	6	4.5	7.5	4.1	29	30	—	29	25				588	1100	7.24	98	78	90
12		21			57		25.5	42					32	32	—	32	27				657	1200	10.9	110	90	102
13		23			61		27.5	43					33	34	—	33	29				813	1570	11.6	130	108	123
16		28			70		32	48					38	37	22	31	34		5		1230	2350	19.7	190	165	182
20	+0.003 -0.015	32	+0.006 -0.021	+0.006 -0.027	80		36	54	8	5.5	9	5.1	43	42	24	36	38	0.04	5	0.04	1400	2740	26.8	260	225	247
25		40			112		52	62	8	5.5	9	5.1	51	50	32	40	46		6		1560	3140	43.4	540	500	525
30		45			123		56.5	74	10	6.6	11	6.1	60	58	35	49	51				2490	5490	82.8	680	590	645
35	+0.003 -0.018	52	+0.006 -0.024	+0.006 -0.032	135		62.5	82	10	6.6	11	6.1	67	64	38	55	60	0.05		0.05	2650	6270	110	1020	930	945
40		60			151		69	96	13	9	14	8.1	78	75	45	64	70				3430	8040	147	1570	1380	1423
(50)		80			192		89.5	116	13	9	14	8.1	98	92	—	—	—				6080	15900	397	3600	3400	-

* Perpendicularity of D to flange mounting surface
[ ! ] Only round and square flanges can be selected for dr () dimensions
[ ! ] Anti-rust oil is applied at the time of delivery.
[ ! ] Flanged Type Height-Adjusting Spacers can be selected from here.
[ ! ] For shaft and housing tolerances, see "Recommended Tolerance of Shaft Diameter / Housing Diameter."

■Available Sizes of Linear Bushings

Specifications	Standard						High Temperature
Surface Treatment	Not Provided			Provided			Not Provided	Provided
Flange Shape	Round Flange	Square flange	Compact Flange	Round Flange	Square flange	Compact Flange	Square flange	Round Flange
dr	C-LHMRW	C-LHMSW	C-LHMCW	C-LHMRWM	C-LHMSWM	C-LHMCWM	C-LHMSWF-N	C-LHMRWMF-N
6	●	●	●	●	●	●	●	●
8	●	●	●	●	●	●	●	●
10	●	●	●	●	●	●	●	●
12	●	●	●	●	●	●	●	●
13	●	●	●	●	●	●	●	●
16	●	●	●	●	●	●	●	●
20	●	●	●	●	●	●	●	●
25	●	●	●	●	●	●	●	●
30	●	●	●	●	●	●	●	●
* 35	●	●	●	●	●	●
* 40	●	●	●	●	●	●
* (50)	●	●		●	●

[ ! ] C-□□□FN cannot be selected for dr* dimension.
[ ! ] Only round and square flanges can be selected for dr () dimensions.

■Recommended Tolerance of Shaft Diameter / Housing Diameter of Linear Bushings

dr	Shaft Dia.	Housing Dia.
dr	g6 Tolerance		Tolerance
6	−0.004 −0.012	12	+0.024 +0.006
8	−0.005 −0.014	15	+0.024 +0.006
10	−0.005 −0.014	19	+0.027 +0.006
12	−0.006 −0.017	21
13		23
16		28
20	−0.007 −0.020	32	+0.031 +0.006
25		40
30		45
35	−0.009 −0.025	52	+0.036 +0.006
40		60
50		80

Product Summary of Linear Bushings

[Features of Linear Bushings]
♢ Get up to 50% discount on similar products from our company by purchasing in bulk! !

[Product comparison information of Linear Bushings]
♢There are some differences in specifications with our similar products. Please be careful when selecting.
The dimensional tolerances of the inner diameter (dr) and outer diameter (D) have been improved to the same tolerance as our similar products.

	Our similar product LHMRWMF20	Economy series C-LHMRWMF-N20
Inner diameter tolerance	0－0.012	0－0.012
Outer diameter tolerance	0－0.019	0－0.019
Total length tolerance	±0.3	±0.6
Eccentricity (maximum)	0.02	0.04
*right angle	0.02	0.04

*Perpendicularity between part D and flange mounting surface

[Price comparison with our similar products of Linear Bushings]

Order quantity	Our similar product LHMCWM8	This product C-LHMCWM8	price reduction rate
1	1860	1100	41%
51	1674	990	41%
101	1525	770	50%

■Detailed example of discount rate of Linear Bushings

Order quantity	Discount rate C-LHMCWM8
1-50	-
51～100	10%
101～1000	30%

To check the price and delivery date by quantity for each model number, please click Check Price after confirming the model number.

Cautions/Prohibitions of Linear Bushings

■Regular maintenance of Linear Bushings
① For grease lubrication, apply grease to the ball rows on the inner surface of the linear bushing before use, and then lubricate at appropriate times.
Grease forms an oil film on the surfaces of the steel balls and raceway surfaces (shaft bushing) of linear bushings, reducing friction and preventing seizure.
Grease loss and deterioration greatly affect the lifespan of linear bushings.
② Recommended lubrication grease: Lithium-based soap-based grease
③ Recommended lubrication interval: Normally every 6 months
If the mileage is long, we recommend lubrication every 3 months, and if the mileage exceeds 1000km within the period, we recommend lubrication every 1000km.
④If a large moment load (unbalanced load) is applied to the linear bushing, it is not suitable to use the single type alone.
We recommend using a double type or multiple single types.

■Dust-proof measures of Linear Bushings
Please be aware that if foreign matter or dust gets inside the linear bushing, it will interfere with the circulation of the steel balls and cause an unexpected accident.
When using the product in harsh environments, attach a dustproof cover or protective cover.

■We recommend a hardened shaft with G6 tolerance for Miss Millinar Bush.

How to Use of Linear Bushings

Illustration	Instructions for use
	If a large load (unbalanced load) is applied to the linear bushing, it is not suitable to use the single type alone. We recommend using a double type or multiple single types.
	Linear Bushings are not suitable for rotational motion due to their structure. Please be careful not to force the rotation as it may cause damage.
	Linear Bushings are not suitable for applications where they are repeatedly inserted and removed.
	When inserting the shaft into the linear bushing, if the shaft is inserted in a strained state, the balls may fall off or the retainer may become deformed, so please align the centers and insert it gently.

Cautions/Prohibitions

■Regular Maintenance
(1) For grease lubrication, apply grease to the ball rows within the linear bushings before use, then periodically apply grease during the use.
The grease has an effect of reducing friction by forming a layer between the balls and shaft rolling surfaces, preventing seizures.
Grease loss and deterioration will cause shorter life of linear guides.
(2) Recommended Grease: Lithium soap based grease
(3) Recommended Lubrication Intervals: Every 6 months
Recommended lubrication is that every 3 months when travel distance is extensive, or every 1000 km when travel distance exceeds 1000 km within the period.
(4) If large moment load (offset load) is to be applied, Short / Single Type Linear Bushings are not suitable.
Use of Double Type or Multiple Linear Bushings is recommended.

■Dust-Proofing Measures
Please be aware that if foreign objects or dusts get inside the linear bushing, it will interfere with the circulation of the steel balls and cause failures.
Please attach a dust cover or protection cover for harsh usage environments.

■Use of a hardened shaft with g6 tolerance is recommended for MISUMI Linear Bushings.

How to Use

Illustration	Instructions for Use
	If large load (offset load) is to be applied, Single Type Linear Bushings are not suitable. Use of Double Type or Multiple Linear Bushings is recommended.
	Linear Bushings are not suitable for rotating motion due to their structure. Forcing to rotate may cause failures.
	Linear Bushings are not suitable for usage with repetitive insertion and extraction of shafts.
	When assembling with linear shafts, forcing the shaft into the bushing with angular misalignment may cause the ball retainers to deform and balls to fall out. Be sure to align the centers and insert the shaft gently.