Plain Bearing Bushes / Flange Selectable / with Housing / Number of Bushes Selectable / Seal Selectable (MFMS16)

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MISUMI

Product Details:

Manufacturer part number: MFMS16

Brand: MISUMI

Price: 25.82 €

Delivery time: 5 Days

Technical Data:

I.D. d: 16 mm

O.D. D: 28 mm

Overall Length L: 37 mm

Maximum Allowable PV Value: 1.65-3.25 N/mm²·m/s

Max. Allowable Velocity V: 0.5-1.0 m/s

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MFMS16

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Technical Information

● Single
● Double
● Long

● Details with dust seal Round flanged Square flangeCompact flanged = 6 to 13d = 16 to 50[ ! ] F8 shaft is recommended for with dust seals
[ ! ] Perpendicularity of flange bottom plane to surface D is 0.02 or less

* Housing Relief

When D ≤ 28, -0.1
−0.3

When D ≥ 32, -0.3
−0.5

Recommended Mating Shaft
Single·····f8 or g6 (Except -DS)
Double, Long··f8

[ ! ] Operating temperature: -40 to 150°C
-DS only: -25 to 100°C

Housing Type	Type			Seal	Seals	Housing		Bushing
Housing Type	Round Flange	Square Flange	Compact Flange	Seal	[M] Material	[M] Material	[S] Surface treatment	[M] Material
Single	MFMS	MFKS	MFNS	No Seal	—	EN 1.0038 Equiv.	Electroless Nickel Plating	High Tensile Brass Alloy
	MFMS−S	MFKS−S	MFNS−S	With Non-contact Seals	Fluororesin
	MFMS−DS	MFKS−DS	MFNS−DS	With Dust Seals	Nitrile Rubber
Double	MFMW	MFKW	MFNW	No Seal	—
	MFMW−S	MFKW−S	MFNW−S	With Non-contact Seals	Fluororesin
	MFMW−DS	MFKW−DS	MFNW−DS	With Dust Seals	Nitrile Rubber
Long	MFML	MFKL	—	No Seal	—
Long	MFML−S	MFKL−S	—	With Non-contact Seals	Fluororesin

Specification Table

Part Number

MFMS6
MFMS−S6

Part Number						D		L					L₁	S	H	T	d₁	d₂	t	P.C.D.	W	F	A
Part Number								No Seal,			With Dust Seals
Type				d				With Non-contact Seals			With Dust Seals
Type				d	Tolerance		Tolerance	Single	Double	Long	Single	Double
	● Single	● Double	● Long	6	+0.022	12	0	22	37	52	—	—	5	15	28	5	3.5	6	3.1	20	22	—	20
	No Seal			6	0	12	−0.018	22	37	52	—	—		15	28					20	22	—	20
Round Flange	MFMS	MFMW	MFML	8	+0.028	15		27	47	67	—	—		20	32					24	25	—	24
Square Flange	MFKS	MFKW	MFKL	10*	0	19		32	57	82	38	63		25	40	6	4.5	7.5	4.1	29	30	—	29
Compact Flange	MFNS	MFNW		12*	+0.034	21	0				40	65	10	25	42					32	32	—	32
	With Non-contact Seals			13	0	23	−0.021				—	—		25	43					33	34	—	33
Round Flange	MFMS−S	MFMW−S	MFML−S	16*		28		37	67	97	45	75		30	48					38	37	22	31
Square Flange	MFKS−S	MFKW−S	MFKL−S	20*	+0.041	32	0	42	77	112	51	86		35	54	8	5.5	9	5.1	43	42	24	36
Compact Flange	MFNS−S	MFNW−S		25*	0	40	−0.025	58	108	158	70	120		50	62	8	5.5	9	5.1	51	50	32	40
	With Dust Seals			30*		45		68	128	188	81	141		60	74	10	6.6	11	6.1	60	58	35	49
Round Flange	MFMS−DS	MFMW−DS		35	+0.05	52	0	68	128	—	—	—	15	60	82	10	6.6	11	6.1	67	64	42	54
Square Flange	MFKS−DS	MFKW−DS		40*	0	60	−0.030	80	150	—	94	164		70	96	13	9	14	8.1	78	75	48	62
Compact Flange	MFNS−DS	MFNW−DS		50		80		90	170	—	—	—		80	116	13	9	14	8.1	98	92	68	72

[!] Only "*" marked sizes are available for dust seal type. [!] The bushing inside the housing cannot be replaced or removed.

General Information - Plain Bearing Bushings

Plain bearing bushing, maintenance-free, selection details

- Material: sintered bronze, copper alloy with solid lubricant (Graphite), cast iron with solid lubricant, POM (polyacetal), PTFE (polytetraflouroethylene), composite steel, aluminum with fluoroplastic multi-coating
- Designs: straight, with collar, with housing and flange, with housing and block shape
- Housing coatings: nickel-plated, chrome-plated
- ISO tolerances: E7, G6, H7, h7, m6, r6
- Inner diameter [d]: 3 mm to 100 mm
- Outer diameter [D]: 4.6 mm to 120 mm
- Length [L]: 3 mm to 188 mm
- Permissible speed (max): 0.15 to 3.33 m/s

Description/Basics

Maintenance-free plain bearing bushings are suitable for linear and rotary motion. Movement is ensured by gliding. Thus, no rolling components are necessary, as with a rolling bearing.
Plain bearings can be selected in various shapes, materials and sizes at MISUMI. Bearing bushings are also already available integrated into the housing to make assembly easy and convenient.
Maintenance-free plain bearings have the benefit of not requiring maintenance or only little maintenance due to their integrated lubrication properties. This means that an external lubrication system can be omitted, which would not only require extra installation space, but is often very costly.
In contrast to rolling bearings, gliding bearings can generally accommodate high load-bearing capacities due to the larger contact area and require reduced installation space. The service life of the plain bearing bushings must be calculated depending on the application, since various influencing variables, such as roughness, stroke or rotational speed, have an influence on the service life.

Application example: plain bearing bushing

Bearing types in comparison

	Plain bearing bushings	Linear ball bearing	Bearings

	Plain bearing	Roller bearing	Roller bearing
Lubrication	without	required	required
linear tables	suitable	well suitable	not suitable
Rotational movement	suitable	not suitable	well suitable
High load-carrying capacity	well suitable	not suitable	suitable
Heat resistance	well suitable	not suitable	not suitable
Corrosion resistance	suitable	not suitable	not suitable
Wear resistance	Poor	well suitable	well suitable
Space requirement	low	high	high

Comparison Table - Plain bearing bushings, linear ball bushings, bearings

For more detailed information, please click on the More information tab

Function

The primary task of plain bearings is to guide and support shafts. The use of integrated lubricants significantly reduces friction and wear. The lubricants and materials of the plain bearing are always selected in such a way that the wear is specifically on the bearing bushing in order to protect the more expensive shaft from wear as much as possible.
The stored lubricants are released during operation. In most cases, it is released by heat and micro-abrasion. If the friction between the shaft and the plain bearing increases, the lubricant is released from the plain bearing and forms a protective lubricant film between the plain bearing and the shaft.

Sinter Bushings
A very common plain bearing is the plain bearing made of sintered metal. For this purpose, granules made of a copper alloy, such as brass or bronze, are heated and pressed into a sinter bushing. The pores of the sintered metal remain open through this process. The sintered bushing is then soaked in heated, liquid lubricant. During the cooling process of the lubricant, it solidifies and is stored in the pores of the sintered bushing.
Frictional heat conducts the lubricant embedded in the pores to the contact surface and forms a protective lubricant film between the gliding bearing bushing and the gliding partner.
Sinter bushings are often used in combustion engines because they have good emergency running properties. This property of the sintered metal plain bearings can also protect the shaft from damage in many other applications. If sintered slide bearings are consistently supplied with oil, these can also withstand very high speeds.

Example of a sinter bushing

Plain bearing with solid lubricant
In the case of the plain bearings with solid lubricant, the included graphite ensures the lubrication of the contact surface. Solid lubricant has good lubrication properties, especially at high pressures and higher temperatures. Micro-abrasion releases graphite particles from the bearing bushing lubrication pockets and directs them to the contact surface.
The positions of the solid lubricant bearings (1) allow for the most uniform lubrication possible and thus ensure a low friction value and reduced wear.

(1) Solid lubricant, (2) plain bearing bushing

MISUMI also offers plain bearing bushings with solid lubricant with an integrated thrust washer. The integrated thrust washer is a flange with solid lubricant. These collar bushings can also be used to protect a gear wheel or shaft shoulder from wear. At the same time, an additional thrust disc can be dispensed with, which reduces the variety of parts and simplifies assembly and maintenance. These advantages of the collar bushing allow for use as an axial sliding bearing.

Plain bearing bushings with solid lubricant and thrust washer

(1) Solid lubricant, (2) plain bearing bushing

Plain bearings made of plastic
Plain bearings made of plastic have a good chemical resistance. They are also well suited for locations in a corrosive environment. The applied plastics have principally good gliding properties, which can additionally be improved by additives. Contrary to the conventional flange bushing, plastic plain bearings can also be combined with aluminum shafts.
Plastic plain bearings are relatively cost-effective and light. Therefore, they are used in many areas, often in small devices such as printers or hinge elements.
At very high speeds, plastic bearing bushings can burn out or melt due to the resulting frictional heat. Therefore, it is particularly important to maintain the maximum speeds of rotation and ambient temperatures in plastic plain bearings. At higher speeds of rotation and bearing powers, a metallic plain bearing is usually used.

Plain bearings made of composite material
Plain bearings made of composite material consist of a metallic base carrier and a plastic layer applied on the inside. Due to the metallic outer ring, plain bearings made of composite material are generally more stable than plastic plain bearings. Nevertheless, they do not have to forego the advantages (chemical resistance, etc.) of the plastic.
Some plain bearings are provided with an additional composite layer made of sintered bronze. This is inserted between the metallic outer ring and the inner ring made of plastic, which ensures an additional emergency running property if the plastic is closed. Sliding bearing bushings with a PTFE composite layer can withstand temperatures up to 280°C and thus work in a high temperature range than conventional plastic plain bearings (approx. 80°C).
Plain bearings with a collar or without a collar made of composite material have a very thin-walled design and are therefore very space-saving.

(1) Plastic/composite layer, (2) metal base carrier

Plain bearings with housing
All previously mentioned plain bearings are already available from MISUMI mounted in housings (flange housings or block housings). This reduces the assembly time significantly.
In addition, the housing units have the additional advantage that they are available with a contact seal or contactless seal (1). The contact seal prevents small dust particles from getting onto the gliding surface of the plain bearing. The contactless seal design prevents large debris from entering while reducing the gliding resistance compared to the contact seal design.

(1) Seal, (2) retaining rings, (3) maintenance-free plain bearing, (4) housing

Areas of Application

Maintenance-free plain bearings are suitable for linear and rotary motion. They are used in many applications, from simple hinged mechanisms to precise linear guides. Due to their versatility, plain bearings are indispensable in various industries of mechanical engineering and plant engineering.
Due to their large contact surface, plain bearings can generally accommodate high loads. Compared to rolling bearings, plain bearings are also quieter, require less maintenance and are less susceptible to contamination.
Collar bushings with solid lubricants can also serve as axial plain bearings, since MISUMI offers flange bushings with integrated solid lubricants.
Bearing bushings require reduced installation space. Therefore, plain bearings are used in applications in which rolling bearings are not possible due to limited installation space.
A particularly space-saving and thin-walled plain bearing offered by MISUMI is type MPBZU.

Materials

MISUMI plain bearings are available in the following material compositions:
- Sintered bronze
- Copper alloy with solid lubricant (Graphite)
- Cast iron with solid lubricant
- POM (polyacetal)
- PTFE (polytetraflouroethylene)
- Steel with multi-coating
- Aluminum with fluoroplastic multi-coating

Dimensions

Maintenance-free plain bearings are available in many dimensions at MISUMI:
- ISO tolerances: E7, G6, H7, h7, m6, r6
- Inner diameter [d]: 3 mm to 100 mm
- Outer diameter [D]: 4.6 mm to 120 mm
- Length [L]: 3 mm to 188 mm

Shaft Tolerance
Shaft tolerance is used to create the clearance between the plain bearing bushing and the shaft. Which shaft tolerance is recommended for a plain bearing with a plain bearing bushing depends on the application and required precision. MISUMI offers plain bearings in the ISO tolerances E7, G6 and H7. For particularly precise applications, MISUMI also offers linear shafts in the ISO tolerances g6 and f8.

Surface Roughness
The surface roughness of the shaft has a major impact on the wear of the plain bearing bushing. In order to reduce wear, a uniformly ground shaft is recommended as a gliding partner. A good roughness of approx. 0.4 to 1.6 μm contributes to a good glide and low wear.

Instructions for Use / Installation Information - Plain Bearing Bushings

Instructions for use

Design	Properties	Shapes
Copper alloy	• High temperature resistance • High corrosion resistance • Excellent impact resistance • Ideal for high loads and low speeds of rotation	• straight • with collar • Axial design (integrated thrust washer) • Flange housing • Block housing
Sintered bronze	• Resistant to friction welding • Short movements are possible • Ideal for low loads and high speeds of rotation	• straight • with collar • with flange
Cast steel	• Ideal for medium loads and low speeds of rotation	• straight • with collar • with housing
Multi-coating	• High temperature resistance • Ideal for high loads and low speeds of rotation • Thin-walled and compact	• straight • with collar • with housing
Plastic	• High temperature resistance (PTFE) • Excellent chemical resistance (PTFE) • Ideal for low loads and high speeds of rotation	• straight • with collar

Comparison Table - Plain Bearing Sleeve Versions

For more information on material properties, environmental conditions, and mechanical properties, see this PDF.

Installation Information

Press-in
Maintenance-free plain bearing bearings (2) must be carefully pressed into a housing with a vice or press (press fit). To facilitate this process, the edge of the inner diameter of the housing is chamfered (1). It is recommended to apply a small amount of lubricant to the housing (3). If the housing fit is too tight, this can affect the inner diameter of the maintenance-free sliding bearing and lead to increased wear. You can find the suitable housing tolerance for the respective plain bearing under the tab More Information.

(1) Phase, (2) plain bearing bushing, (3) housing

Turning Stop Screw
An undesired rotation of a maintenance-free plain bearing bushing can be prevented with a turning stop screw (1) (press fit/transition fit). The use of a rotation stop screw (1) is recommended for high loads, rotational speeds and temperatures.

(1) Turning stop screw

Bonding
If for various reasons you cannot use of a rotation stop screw, a maintenance-free sliding bearing bushing can be glued (2) into the housing with adhesive (play fit). Depending on the external influences, this can be done with Loctite. For applications that require high precision, this variant is not recommended due to the positioning accuracy.

(1) Plain bearing bushing, (2) adhesive layer

Application Examples - Plain Bearing Bushings

(1) Plain bearing bushing with flange housing, (2) servo press, (3) broach, (4) workpiece (gear wheel)

(1) Plain bearing bushing, (2) hinge bolt

(1) Plain bearing bushing, (2) flange, (3) switch sensor, (4) air cylinder, (5) quick-change holder, (6) clamp

(1) Plain bearing bushings in axial design, (2) hinge bolt, (3) plain bearing bushing (4) profile

Supplementary Article

Shafts

Adjusting rings/clamping rings

Shaft holder

Hinge bolts

Axle bolts

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

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Part Number
MFMS16

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	I.D. d (mm)	O.D. D (mm)	Overall Length L (mm)	Maximum Allowable PV Value (N/mm²·m/s)	Max. Allowable Velocity V (m/s)	Length Type	Operating Temperature Range (°C)	Mount Type	Seal Type
	25.82 €	1	Available	5 Days	10	16	28	37	1.65-3.25	0.5-1.0	Single	-40～150	Round Flange	No Seal

Specifications/Overview

■Features of dust seal type and non-contact seal type
·Dust seal type has built-in contact seals which prevent small dust from entering sliding contact surface.
·For sliding resistance of dust seal type, refer to sliding resistance test data.
·Non-contact seal type prevents large size dust entry.
Clearance between shafts and bushings (approximately 0.1 mm) lowers the sliding resistance than dust seal type.

■Dust seals sliding resistance test

d	Sliding resistance (N)	Dust Seal
10	4	SER－10
12	6	SER－12
16	6	SER－16
20	7	SER－20
25	8	SER－25
30	9	SER－30
40	10	SER－40

[ ! ] Values are for reference only.

■Testing conditions
1. Testing instrument: Push-Pull Gauge
2. Bushing: copper alloy
3. Shaft: MISUMI's f8 shaft

■Testing method
Measured the load when the shaft started to move.
* Velocity 1 mm/s approximately

Products homepage

Basic information

Type	Flange Integrated	Metallic	High-Tensile Brass Alloy	Maximum Allowable PV Value Range(N/mm²•m/s)	2.1 to 5.0
Max. Allowable Surface Pressure P(N/mm²)	29	Housing Material	EN 1.0038 Equiv.

This page is Plain Bearing Bushes / Flange Selectable / with Housing / Number of Bushes Selectable / Seal Selectable, part number MFMS16.
You can find the detail information about specifications and dimensions on part number MFMS16.

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Basic Attributes

Type
- MFKL
- MFKL-S
- MFKS
- MFKS-DS
- MFKS-S
- MFKW
- MFKW-DS
- MFKW-S
- MFML
- MFML-S
- MFMS
- MFMS-DS
- MFMS-S
- MFMW
- MFMW-DS
- MFMW-S
- MFNS
- MFNS-DS
- MFNS-S
- MFNW
- MFNW-DS
- MFNW-S
Clear
I.D. d(mm)
6

8

10

12

13

16

20

25

30

35

40

50
Clear
O.D. D(mm)
12

15

19

21

23

28

32

40

45

52

60

80
Clear
Overall Length L(mm)
22

27

32

37

38

40

42

45

47

51

52

57

58

63

65

67

68

70

75

77

80

81

82

86

90

94

97

108

112

120

128

141

150

158

164

170

188
Clear
Maximum Allowable PV Value(N/mm²·m/s)
1.65-3.25

3.25
Clear
Max. Allowable Velocity V(m/s)
0.5-1.0

1
Clear
Length Type
- Single
- Double
- Long
Clear
Mount Type
- Compact Flange
- Round Flange
- Square Flange
Clear
Seal Type
- No Seal
- With Dust Seals
- With Non-Contact Seals
Clear
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Optional Attributes

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

Variation of this product

Part Number
MFKL-S25
MFKL10
MFKL12
MFMS20
MFMS25
MFMS30

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	I.D. d (mm)	O.D. D (mm)	Overall Length L (mm)	Maximum Allowable PV Value (N/mm²·m/s)	Max. Allowable Velocity V (m/s)	Length Type	Operating Temperature Range (°C)	Mount Type	Seal Type
160.95 €	1	Available	5 Days	10	25	40	158	1.65-3.25	0.5-1.0	Long	-40～150	Square Flange	With Non-Contact Seals
56.30 €	1	Available	5 Days	-	10	19	82	1.65-3.25	0.5-1.0	Long	-40～150	Square Flange	No Seal
61.72 €	1	Available	5 Days	-	12	21	82	1.65-3.25	0.5-1.0	Long	-40～150	Square Flange	No Seal
34.13 €	1	Available	5 Days	10	20	32	42	1.65-3.25	0.5-1.0	Single	-40～150	Round Flange	No Seal
51.00 €	1	Available	5 Days	10	25	40	58	1.65-3.25	0.5-1.0	Single	-40～150	Round Flange	No Seal
66.24 €	1	Available	5 Days	10	30	45	68	1.65-3.25	0.5-1.0	Single	-40～150	Round Flange	No Seal