Flanged Linear Bushing - Standard, Pilot Flanged, Single[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		Outer Cylinder			Balls	Retainer	Operating Ambient Temperature	[A] Accessory
Round Flange	Compact Flange	[M] Material	[H] Hardness	[S] Surface Treatment	[M] Material	[M] Material
C-LHIFR	C-LHIFC	SUJ2 Equivalent	58HRC or more	—	SUJ2 Equivalent	Plastic	－20 to 80°C	Seal [M] Material Nitrile Rubber
—	C-LHIFCM			Electroless Nickel Plating

Specification Table of Linear Bushings

Ordering Example of Linear Bushings		Part Number (Type, dr)
		C-LHIFR20 C-LHIFCM30

	dr		D			L	(ℓ)	H	(T)	d	d1	t	P.C.D.	F	A	K	Eccentricity (Max.)	Balls Rows	* Perpendicularity	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	Compact Flange
6	+0.003 -0.012	12	+0.006 -0.015	+0.006 -0.020	19	±0.6	5	28	5	3.5	6	3.1	20	—	20	18	0.024	4	0.024	206	265	24	21
8		15			24			32					24	—	24	21				265	380	37	33
10		19	+0.006 -0.018	+0.006 -0.023	29		6	40	6	4.5	7.5	4.1	29	—	29	25				372	549	72	64
12		21			30			42					32	—	32	27				412	598	76	68
13		23			32			43					33	—	33	29				510	784	88	81
16		28			37			48					38	22	31	34		5		775	1180	120	112
20	+0.003 -0.013	32	+0.006 -0.021	+0.006 -0.027	42		8	54	8	5.5	9	5.1	43	24	36	38	0.03		0.03	882	1370	180	167
25		40			59			62					51	32	40	46		6		980	1570	340	325
30		45			64		10	74	10	6.6	11	6.1	60	35	49	51				1570	2740	470	388
35	+0.003 -0.015	52	+0.006 -0.024	+0.006 -0.032	70			82					67	38	55	60	0.04		0.04	1670	3140	650	580
40		60			80		13	96	13	9	14	8.1	78	45	64	70				2160	4020	1060	920
(50)		80			100			116					98	—	—	—				3820	7940	2200	—

* Perpendicularity of D to flange mounting surface
[ ! ] Only round 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."

■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 -0.02	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 LHIFC20	Economy series C-LHIFC20
Inner diameter tolerance	0－0.010	0－0.010
Outer diameter tolerance	0－0.019	0－0.019
Total length tolerance	±0.3	±0.6
Eccentricity (maximum)	0.015	0.03
*right angle	0.015	0.03

*Perpendicularity between part D and flange mounting surface

[Price comparison with our similar products of Linear Bushings]

Order quantity	Our similar product LHIFR20	This product C-LHIFR20	price reduction rate
1	1130	660	42%
51	1017	594	42%
101	926	462	50%

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 affects the service life 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 distance 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 Millinia Bushing.

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 distorted state, the balls may fall off or the retainer may become deformed, so please align the shaft 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.