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Oil Free Bushing Housing Units Compact Flanged

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MISUMI

MiSUMi Economy

MISUMI

- Oil Free Bushing Housing Units Compact Flanged, C-MFN series from MISUMI.
- Upgraded Economy Series Oilless Bushing Unit with technical enhancements.
- The case material changed from stainless steel to lightweight aluminum alloy.
- Oilless bushing material upgraded to a durable bronze alloy.
- Integrated one-piece design ensures even distribution of solid lubricant.
- Improved lubrication performance and significantly reduced noise
- Recommended for vertical motion applications.
- Easy installation and lower maintenance frequency
- Upgrade your equipment for smoother operations and enhanced durability.

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Part Numbers
Specifications

Economy Oil Free Bushing Housing Compact Flanged

Compact Design Lightweight Design Durable Bronze Alloy Liner

- The bushing housing unit features a compact flanged design and is made from lightweight aluminum alloy

- Ideal for space-constrained applications and reduces overall equipment weight, enhancing efficiency and ease of handling

- Provides excellent wear resistance, extending the service life and reducing maintenance costs

- Suitable for heavy-load applications, ensuring reliable performance under demanding conditions

- Reduces installation time and effort, enhancing operational efficiency and convenience

Economy Oil Free Bushing Housing Compact Flanged

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Oil Free Bushings Product Overview

Oil Free Bushings The new product of the economy series oilless bushing unit has been technically upgraded, with case material changed from stainless steel to aluminum alloy, and oilless bushing material changed from high-strength brass alloy to bronze alloy;
The oilless bushing is no longer embedded in a hole but integrated as one piece, ensuring more evenly distributed solid lubricant
, improved lubrication performance and significantly reduced noise.
This product is recommended for motions in the vertical direction, allowing easy installation and low maintenance frequency.

Product Drawings

Oil Free Bushings Product Features

Oil Free Bushings The performance of the MISUMI new product has been greatly improved.
1. It is the first time MISUMI has integrated oilless bushing in copper plate, with the assistance of strong glue, allowing the bushing and aluminum alloy case to be tightly press-fitted (patent pending). Compared with the ordinary solid lubricant embedded product, the new solid lubricant is distributed more evenly and the lubricating area is increased by 20%, lubrication effect of oil free bushing greatly improved.
2. Longer service life due to improved lubrication
Conventional type: Final wear amount of 0.030 mm
New product: Final wear amount of 0.020 mm
Experiment conditions: Surface pressure of 25 N/mm², swing speed of 1 m/min, swing frequency of 96,000 times, experiment time of 100 h

Conventional type

New Products

3. Product strength is fully ensured by aluminum alloy case. Test method: Apply load in the vertical direction and obtain the result of bushing stress during the process
Test demonstration: Analysis result of 0.1 mm forced shift of guide shaft in Y direction after the oilless bushing is fixed with screws.

Material	Yield Strength	Stress concentration result
Aluminum Alloy A6061	240Mpa	30.3Mpa
Steel SS400	235Mpa	42.5Mpa

Oil Free Bushings Stress
Product Features

Stress point
Product Features

4. With the assistance of strong glue, the oilless bushing is fixed on the case with press-fit method. Compared with the conventional circlip fixing method, the adhesion is improved by 40% (data collected from the stripping test).

Stripping test
Circlip fixed product	New Products
1.73Mpa	2.45Mpa

Oil Free Bushings Dimensional Drawing

Case material: Aluminum alloy A6061
Surface treatment: Passivation treatment
Liner material: Bronze alloy
* Passivation is a method of treatment to generate a passivation film through direct reaction between aluminum alloy and chemical solution, thereby improving corrosion resistance and bonding force

Part Number			d		D		L		L1	H	T	d1	d2	t	P.C.D	W	F	A
Type				Tolerance		Tolerance	Short	Long
Round Flanged C-MFM	Square Flanged C-MFK	Flanged type C-MFN	10	+0.028 0	19	0 -0.018	32	57	5	40	6	4.5	7.5	4.1	29	30	-	29
			12	+0.034 0	21	0 -0.021	32	57	10	42					32	32	-	32
			16		28		37	67		48					38	37	22	31
			20	+0.041 0	32	0 -0.025	42	77		54	8	5.5	9	5.1	43	42	24	36
			25		40		58	108		62					51	50	32	40
			30		45		68	128		74	10	6.6	11	6.1	60	58	35	49
			40	+0.050 0	60	0 -0.030	80	150	15	96	13	9	14	8.1	78	75	50	60
			50		80		90	170		116					98	92	58	80

Oil Free Bushings Usage Method

Oil Free Bushings It can be used to the guide shaft and lock the flange, in the same way as the linear bearing.

Oil Free Bushings Specifications Overview

Oil Free Bushings Example of Use

Oil Free Bushings Brake device using cylinder rather than lock
Example of Use 1

Part Number

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: 30; 45; 60

Part Number
C-MFN10-32
C-MFN10-57
C-MFN12-32
C-MFN12-57
C-MFN16-37
C-MFN16-67
C-MFN20-42
C-MFN20-77
C-MFN25-58
C-MFN25-108
C-MFN30-68
C-MFN30-128
C-MFN40-80
C-MFN40-150
C-MFN50-90
C-MFN50-170

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Inner Dia. d (Ø)	Outer Dia. D (Ø)	Overall Length L (mm)
SGD 16.23	1 Piece(s)	Available	Same day	10	10	19	32
SGD 31.35	2 Piece(s)	Available	5 Day(s)	10	10	19	57
SGD 17.31	1 Piece(s)	Available	Same day	10	12	21	32
SGD 33.31	2 Piece(s)	Available	5 Day(s)	10	12	21	57
SGD 19.29	1 Piece(s)	Available	Same day	10	16	28	37
SGD 40.62	1 Piece(s)	Available	Same day	10	16	28	67
SGD 19.80	1 Piece(s)	Available	5 Day(s)	10	20	32	42
SGD 50.45	1 Piece(s)	Available	Same day	10	20	32	77
SGD 33.88	2 Piece(s)	Available	5 Day(s)	10	25	40	58
SGD 75.16	2 Piece(s)	Available	5 Day(s)	10	25	40	108
SGD 34.93	2 Piece(s)	Available	5 Day(s)	10	30	45	68
SGD 98.22	2 Piece(s)	Available	5 Day(s)	10	30	45	128
SGD 78.08	2 Piece(s)	Available	5 Day(s)	10	40	60	80
SGD 125.07	2 Piece(s)	Available	5 Day(s)	10	40	60	150
SGD 106.42	2 Piece(s)	Available	5 Day(s)	10	50	80	90
SGD 199.75	2 Piece(s)	Available	5 Day(s)	10	50	80	170

Specification Table

Part Number			d		D		L		L1	H	T	d1	d2	t	P.C.D	W	F	A
Type				Tolerance		Tolerance	Short	Long
Round Flanged C-MFM	Square Flanged C-MFK	Flanged type C-MFN	10	+0.028 0	19	0 -0.018	32	57	5	40	6	4.5	7.5	4.1	29	30	-	29
			12	+0.034 0	21	0 -0.021	32	57	10	42					32	32	-	32
			16		28		37	67		48					38	37	22	31
			20	+0.041 0	32	0 -0.025	42	77		54	8	5.5	9	5.1	43	42	24	36
			25		40		58	108		62					51	50	32	40
			30		45		68	128		74	10	6.6	11	6.1	60	58	35	49
			40	+0.050 0	60	0 -0.030	80	150	15	96	13	9	14	8.1	78	75	50	60
			50		80		90	170		116					98	92	58	80

Basic Information

Type	Housing Unit	Metal Type	Special Bronze Cast	Environment	Standard / In Oil
Housing Unit Type	Compact Flange	Mounting Shaft Fits	g6 / f8	Lubrication	Unlubricated / Regular Lubrication
Max. Allowable Surface Pressure P(N/mm²)	29	Case Material	Aluminum Alloy	Maximum Allowable Velocity(m/s)	0.5
Max. Allowable PV Value Range(N/mm²•m/s)	1.1~2.0	Max. Allowable PV Value(N/mm²•m/s)	1.65	Operating Temperature Range(°C)	-40::200
Seal Type	No Seal

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Specification/Dimensions

Inner Dia. d(Ø)
10

12

16

20

25

30

40

50
Clear
Outer Dia. D(Ø)
19

21

28

32

40

45

60

80
Clear
Overall Length L(mm)
32

37

42

57

58

67

68

77

80

90

108

128

150

170
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CAD
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- 3D
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Same day

5 Day(s) or Less
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The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What is an oilless bushing and what features does it have?: Answer: The bushing body is soaked in lubricating oil. It is a slide bearing which can be “used without oil supply” or “can reduce oil supply times”.
Oilless bushings have the following features:
1. Low maintenance frequency;
2. Compared with ball linear bearings, oilless bushings are suitable for low-speed and heavy-load occasions;
3. Allow use under severe conditions of high temperature and low temperature;
4. Compared with linear bearings, oilless bushings are thinner, saving space;
5. Allow use for both linear motion and rotary motion.
Question: What materials are MISUMI oilless bushings made of, and what features do they have respectively?: Answer: MISUMI provides oilless bushings made of five materials, including copper alloy, bronze casting, dry type, resin and casting.
Copper alloys (metals) have high temperature resistance, excellent chemical resistance and impact resistance, and is suitable for heavy load and low-speed operation.
Bronze castings (metals) have excellent sintering resistance, can realize micro-operation, and are suitable for low-load and high-speed operation.
Dry (composite layers), resistant to high temperature, suitable for heavy load and low-speed operation, thin wall and compact.
Resin (resins), resistant to high temperature and chemicals (polytetrafluoroethylene resin), compliant with food hygiene law and suitable for low load and low-speed operation.
Castings (metals) are suitable for medium load and low-speed operation.

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Oil Free Bushing Housing Units Compact Flanged

Economy Oil Free Bushing Housing Compact Flanged

Oil Free Bushings Product Overview

Oil Free Bushings Product Features

Oil Free Bushings Dimensional Drawing

Oil Free Bushings Usage Method

Oil Free Bushings Specifications Overview

Oil Free Bushings Example of Use

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