What does the term ″self-lubricating bushing″ or oil free bushings refer to?

The term ″self-lubricating bushing″ or oil free bushings refers to a type of bearing or sleeve that has the ability to provide lubrication to reduce friction without requiring external lubricants like oil or grease. These bushings are designed with embedded solid lubricants, such as graphite or PTFE (Teflon), which release lubrication during operation. They are commonly used in various applications where low friction, smooth operation, and maintenance-free performance are desired, such as in machinery, automotive components, and industrial equipment.

Should you apply grease or oil to bronze bushings?

In general, bronze bushings do not need additional grease or oil. They are self-lubricating or oil free bushings and don't require external lubrication. However, if there is excessive friction or wear, a small amount of compatible oil or grease can be applied. It's best to follow the manufacturer's recommendations or seek professional advice for specific bronze bushings.

What materials are typically used to manufacture oil free bushings?

Oil free bushings are usually made from materials like bronze, brass, steel, PTFE (Teflon), nylon, and composites. These materials have built-in lubrication properties, reducing the need for external lubricants. Bronze and brass are durable choices, steel is strong, PTFE offers low friction, nylon is lightweight, and composites provide a balance of strength and self-lubrication. Material selection depends on specific application requirements.

Are bronze bushing self-lubricating?

Yes, bronze bushings are self-lubricating. They contain built-in solid lubricants like graphite or PTFE. This means they can provide lubrication on their own, reducing friction and wear. They don't require additional external lubrication, making them convenient and suitable for various applications.

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Oil Free Bushings（Case Material：Steel）

Since bearings usually receive a lot of frictional resistance that generates heat, lubricants such as oil or grease are used to prevent the seizing or abnormal wear that this frictional heat could otherwise cause. Lubrication-free bushings don't need lubricating oil because the bearing body has a lubricating structure made possible by lubricating oil in the bearing body, or by embedded solid lubricant or the like. Since they don't need lubricating oil, lubrication-free bushings are often used for applications such as precision machinery that makes lubricating oil refilling difficult, and equipment with poor affinity to oil. They also greatly reduce maintenance costs by eliminating the need for regular lubrication and enabling stable operation over long periods. Lubrication-free bushings come in a variety of shapes that can be used for different applications as needed. Examples include straight bushings, collar bushings, flange bushings and housing bushings.

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Type	Straight/sleeve Flanged Type Flange-Mount Type Housing Unit Type
Brand	(4) (0) DAIDO METAL (0) IGUS (0) NTN (0) OILES (0) ZOB (0)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

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Oil Free Bushing Housing Units - Standard Flanged - Standard - Built-In Copper Alloy Bushings, Single / Double

Oil Free Bushing Housing Units - Standard Flanged - Standard - Built-In Copper Alloy Bushings, Single / Double

MISUMI

- Oil Free Bushing Housing Units - Standard Flanged.
- Housing Type: Single / Double
- Outer Diameter: 12, 15, 19, 21, 23, 28, 32, 40, 45, 52, 60 and 80.
- Housing Material: SS400.
- Housing Surface Treatment: Electroless Nickel Plating
- Bushing Material: High Tensile Brass Alloy Solid Lubricant Embedded
- Seal type: No Seal, With Dust Seals and With Non-Contact Seals
- Seals: NBR Nitrile Rubber (O-Ring) and Teflon Resin
- Suitable for vertical use and reduces the time of manufacturing and assembling the housing.

Volume Discount

CAD ：: 2D / 3D

Type	Inner Dia. d(Ø)	Outer Dia. D(Ø)	Overall Length L(mm)	Metal Type	Environment	Resin Type	Multi-layer	Case Shape	Mounting Shaft Fit	Mounting Hole Fits	Lubrication	Thickness t(mm)	Max. Allowable Surface Pressure P(N/mm2)	Case Material	Max. Allowable Velocity V(m/s)	Length Type	Max. Allowable PV Value Range(N/mm2・m/s)	Max. Allowable PV Value(N/mm²•m/s)
Flange-Mount Type	6 ～ 50	12 ～ 80	22 ～ 188	Brass	-	-	-	-	-	-	-	-	29	Steel	0.5	Single / Double / Long	1.1~2.0	1.65

From: ₹ 909.13
Days to Ship: Same day or more

Same day or more

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Oil Free Bushing Housing Units - Pilot Flanged - Standard - Built-In Copper Alloy Bushings, Single / Double

Oil Free Bushing Housing Units - Pilot Flanged - Standard - Built-In Copper Alloy Bushings, Single / Double

MISUMI

- Oil Free Bushing Housing Units - Pilot Flanged
- Housing Type: Single, Double and Long.
- Outer Diameter: 6, 8, 10, 12, 16, 20, 25, 30, 35, 40 and 50.
- Housing Material: SS400.
- Housing Surface Treatment: Electroless Nickel Plating
- Bushing Material: High Tensile Brass Alloy Solid Lubricant Embedded
- Seal type: No Seal and With Non-Contact Seals
- Operating Temperature Range: -40 to 150 (°C)
- For Non-Contact Seals Teflon seal of 0.3mm thick is attached on the inner side of each retaining ring.
- Suitable for vertical use. Reduces the time of manufacturing and assembling the housing.

Volume Discount

CAD ：: 2D / 3D

Type	Inner Dia. d(Ø)	Outer Dia. D(Ø)	Overall Length L(mm)	Metal Type	Environment	Resin Type	Multi-layer	Case Shape	Mounting Shaft Fit	Mounting Hole Fits	Lubrication	Thickness t(mm)	Max. Allowable Surface Pressure P(N/mm2)	Case Material	Max. Allowable Velocity V(m/s)	Length Type	Max. Allowable PV Value Range(N/mm2・m/s)	Max. Allowable PV Value(N/mm²•m/s)
Flange-Mount Type	6 ～ 50	12 ～ 80	22 ～ 170	Brass	-	-	-	-	-	-	-	-	29	Steel	0.5	Single / Double	1.1~2.0	1.65

From: ₹ 970.83
Days to Ship: Same day or more

Same day or more

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Oil Free Bushings - Center Flanged Housing Units (Built-In Copper Alloy Bushings

Oil Free Bushings - Center Flanged Housing Units (Built-In Copper Alloy Bushings

MISUMI

- Oil Free Bushings - Center Flanged Housing Units
- Flanged Housing Type: Round Flange, Square Flange and Compact Flange.
- Outer Diameter: 6, 8, 10, 12, 13, 16, 20, 25 and 30.
- Housing Material: SS400.
- Housing Surface Treatment: Electroless Nickel Plating
- Bushing Material: High Tensile Brass Alloy Solid Lubricant Embedded
- Seal type: No Seal and With Non-Contact Seals
- With Non-Contact Seals Teflon seal of 0.3mm thick is attached on the inner side of each retaining ring.
- Suitable for vertical use and reduces the time of manufacturing and assembling the housing.

Volume Discount

CAD ：: 2D / 3D

Type	Inner Dia. d(Ø)	Outer Dia. D(Ø)	Overall Length L(mm)	Metal Type	Environment	Resin Type	Multi-layer	Case Shape	Mounting Shaft Fit	Mounting Hole Fits	Lubrication	Thickness t(mm)	Max. Allowable Surface Pressure P(N/mm2)	Case Material	Max. Allowable Velocity V(m/s)	Length Type	Max. Allowable PV Value Range(N/mm2・m/s)	Max. Allowable PV Value(N/mm²•m/s)
Flange-Mount Type	6 ～ 30	12 ～ 45	37 ～ 128	Brass	-	-	-	-	-	-	-	-	29	Steel	0.5	Double	1.1~2.0	1.65

From: ₹ 2,017.64
Days to Ship: Same day or more

Same day or more

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Oil Free Bushing Housing Units - Blocks / Built-in Cast Bushings

MISUMI

Built-in oil-free bushing made of cast metal: FC250. This is a standard that reduces the labor involved in manufacturing and assembling the housing.

Volume Discount

CAD ：: 2D / 3D

Type	Inner Dia. d(Ø)	Outer Dia. D(Ø)	Overall Length L(mm)	Metal Type	Environment	Resin Type	Multi-layer	Case Shape	Mounting Shaft Fit	Mounting Hole Fits	Lubrication	Thickness t(mm)	Max. Allowable Surface Pressure P(N/mm2)	Case Material	Max. Allowable Velocity V(m/s)	Length Type	Max. Allowable PV Value Range(N/mm2・m/s)	Max. Allowable PV Value(N/mm²•m/s)
Housing Unit Type	8 ～ 30	12 ～ 38	15 ～ 100	Cast Iron	-	-	-	-	-	-	-	-	5	Steel	0.15	Single / Double	0.3~1.0	0.5

From: ₹ 1,821.38
Days to Ship: 6 Day(s) or more

6 Day(s) or more


Brand
Product Series
CAD
From
Days to Ship
Type
Inner Dia. d(Ø)
Outer Dia. D(Ø)
Overall Length L(mm)
Metal Type
Environment
Resin Type
Multi-layer
Case Shape
Mounting Shaft Fit
Mounting Hole Fits
Lubrication
Thickness t(mm)
Max. Allowable Surface Pressure P(N/mm2)
Case Material
Max. Allowable Velocity V(m/s)
Length Type
Max. Allowable PV Value Range(N/mm2・m/s)
Max. Allowable PV Value(N/mm²•m/s)

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	MISUMI	MISUMI	MISUMI	MISUMI
Product Series	Oil Free Bushing Housing Units - Standard Flanged - Standard - Built-In Copper Alloy Bushings, Single / Double	Oil Free Bushing Housing Units - Pilot Flanged - Standard - Built-In Copper Alloy Bushings, Single / Double	Oil Free Bushings - Center Flanged Housing Units (Built-In Copper Alloy Bushings	Oil Free Bushing Housing Units - Blocks / Built-in Cast Bushings
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D
From	₹ 909.13	₹ 970.83	₹ 2,017.64	₹ 1,821.38
Days to Ship	Same day or more	Same day or more	Same day or more	6 Day(s) or more
Type	Flange-Mount Type	Flange-Mount Type	Flange-Mount Type	Housing Unit Type
Inner Dia. d(Ø)	6 ～ 50	6 ～ 50	6 ～ 30	8 ～ 30
Outer Dia. D(Ø)	12 ～ 80	12 ～ 80	12 ～ 45	12 ～ 38
Overall Length L(mm)	22 ～ 188	22 ～ 170	37 ～ 128	15 ～ 100
Metal Type	Brass	Brass	Brass	Cast Iron
Environment	-	-	-	-
Resin Type	-	-	-	-
Multi-layer	-	-	-	-
Case Shape	-	-	-	-
Mounting Shaft Fit	-	-	-	-
Mounting Hole Fits	-	-	-	-
Lubrication	-	-	-	-
Thickness t(mm)	-	-	-	-
Max. Allowable Surface Pressure P(N/mm2)	29	29	29	5
Case Material	Steel	Steel	Steel	Steel
Max. Allowable Velocity V(m/s)	0.5	0.5	0.5	0.15
Length Type	Single / Double / Long	Single / Double	Double	Single / Double
Max. Allowable PV Value Range(N/mm2・m/s)	1.1~2.0	1.1~2.0	1.1~2.0	0.3~1.0
Max. Allowable PV Value(N/mm²•m/s)	1.65	1.65	1.65	0.5

Configure

Specification/Dimensions

Inner Dia. d(Ø)
1.5

2

2.5

03

3

04

4

4.5

05

5

06

6

7

8

08

9

10

11

12

13

14

15

16

17

18

19

20

22

24

25

26

27

28

30

31

31.5

32

35

36

38

40

42

45

50

52

55

58

60

63

65

68

70

75

78

80

85

90

95

100

110

120

130

140

150

160

170
Drawing

Clear

Outer Dia. D(Ø)
3

3.5

4

4.5

4.6

5

05

5.5

5.6

06

6

7

08

8

9

10

11

12

12$8$12$8

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

42

43.0

44

45

47

48

50

52

53.0

55

56

57

60

62

65

68

70

74

75

78

80

85

90

95

96

100

105

110

115

117

118

120

125

130

135

140

145

150

155

156

160

165

170

180

190
Drawing

Clear

Overall Length L(mm)
2

02

2.4

2.5

2.6

2.7

2.8

3

03

3.5

3.8

4

04

4.4

4.5

4.8

05

5

5.5

5.9

06

6

6.5

7

7.5

7.7

08

8

9

9.5

10

10.5

11

11.5

12

12.5

13

13.5

13.8

14

15

15.5

16

16.5

17

17.5

18

19

20

21

21.5

22

23

24

25

26

27

28

29

30

31.5

32

34

35

36

37

38

39

40

42

42.5

45

47

48

50

51

52

55

56

57

58

59

60

62

63

64

65

67

67.5

68

69

70

73

74

75

77

78

80

81

82

85

86

90

95

97

100

103

108

110

112

115

120

125

128

130

140

141

150

158

170

188

500
Drawing

Clear

Metal Type
- Bronze
- Brass
- Cast Iron
- Sintered Steel
Clear

Environment
- Standard
- Heat Resistant
- Foreign Object Resistant
- Vibration Resistant
- In Oil
- In Water
- In Seawater
- In Chemical
- Conformance to Food Sanitation Law
Clear

Resin Type
- POM (Polyacetal)
- PTFE (Polytetrafluoroethylene)
- High Performance Polymer Group
- Polyphenylenesulfide
Clear

Multi-layer
- Steel, Sintered Bronze, Polytetrafluoroethylene
- Steel, Sintered Bronze, Polyacetal
- Steel, Copper Type Sintered Alloy
- Metal Mesh, Polytetrafluoroethylene
- Aluminum, Fluororesin
- Polyacetal
Clear

Case Shape
- Round Flange
- Square Flange
- Oval Shaped Flange
- Pillow Type
Clear

Mounting Shaft Fit
- d8
- e7
- g6
- h6
- h7
- h9
- f8
- m6
- js6
- f7
Clear

Mounting Hole Fits
- G7
- H6
- H7
- M7
Clear

Lubrication
- Unlubricated
- Regular Lubrication
Clear

Thickness t(mm)
0.8

1

1.5

2

2.47

2.5

3

4

4.5

5

6

7.5

8

10
Drawing

Clear

Max. Allowable Surface Pressure P(N/mm2)
2.0

5

6

7

9.81

10

14.5

15

17.5

20.3

24.5

29

35

49

50

73

80

137

150
The value differs depending on the current lubrication. Refer to manufacturers' specifications.
Clear

Case Material
- Steel
- Aluminum
- Plastic
Clear

Max. Allowable Velocity V(m/s)
0.10

0.15

0.25

0.35

0.4

0.5

0.65

0.83

0.85

1

1.15

1.5

1.65

1.66

1.83

2.5

3.33
The value differs depending on the current lubrication. Refer to manufacturers' specifications.
Clear

Length Type
- Single
- Double
- Long
Clear

Max. Allowable PV Value Range(N/mm2・m/s)
- 0.3~1.0
- 1.1~2.0
- 2.1~5.0
Clear

Max. Allowable PV Value(N/mm²•m/s)
0.327

0.34

0.42

0.5

0.65

0.83

0.98

1

1.16

1.25

1.32

1.63

1.65

1.72

2.45

3.25

3.26

3.6
The value differs depending on the current lubrication. Refer to manufacturers' specifications.
Clear

Related Categories to Oil Free Bushings

FAQ Oil Free Bushings

Question: What does the term ″self-lubricating bushing″ or oil free bushings refer to?: Answer: The term ″self-lubricating bushing″ or oil free bushings refers to a type of bearing or sleeve that has the ability to provide lubrication to reduce friction without requiring external lubricants like oil or grease. These bushings are designed with embedded solid lubricants, such as graphite or PTFE (Teflon), which release lubrication during operation. They are commonly used in various applications where low friction, smooth operation, and maintenance-free performance are desired, such as in machinery, automotive components, and industrial equipment.
Question: Should you apply grease or oil to bronze bushings?: Answer: In general, bronze bushings do not need additional grease or oil. They are self-lubricating or oil free bushings and don't require external lubrication. However, if there is excessive friction or wear, a small amount of compatible oil or grease can be applied. It's best to follow the manufacturer's recommendations or seek professional advice for specific bronze bushings.
Question: What materials are typically used to manufacture oil free bushings?: Answer: Oil free bushings are usually made from materials like bronze, brass, steel, PTFE (Teflon), nylon, and composites. These materials have built-in lubrication properties, reducing the need for external lubricants. Bronze and brass are durable choices, steel is strong, PTFE offers low friction, nylon is lightweight, and composites provide a balance of strength and self-lubrication. Material selection depends on specific application requirements.
Question: Are bronze bushing self-lubricating?: Answer: Yes, bronze bushings are self-lubricating. They contain built-in solid lubricants like graphite or PTFE. This means they can provide lubrication on their own, reducing friction and wear. They don't require additional external lubrication, making them convenient and suitable for various applications.

Search by Category / Brand

Search by Category

How can we improve?

Oil Free Bushings（Case Material：Steel）

Configure

Specification/Dimensions

Inner Dia. d(Ø)

Outer Dia. D(Ø)

Overall Length L(mm)

Metal Type

Environment

Resin Type

Multi-layer

Case Shape

Mounting Shaft Fit

Mounting Hole Fits

Lubrication

Thickness t(mm)

Max. Allowable Surface Pressure P(N/mm2)

Case Material

Max. Allowable Velocity V(m/s)

Length Type

Max. Allowable PV Value Range(N/mm2・m/s)

Max. Allowable PV Value(N/mm²•m/s)

Related Categories to Oil Free Bushings

FAQ Oil Free Bushings

Payment Method

Customer Service

My Account

About MISUMI

Related Sites

Social Media

MISUMI India Contact

Customer Service

日本語でのお問い合わせはジャパンデスクまで

Search by Category / Brand

Search by Category

How can we improve?

Oil Free Bushings（Case Material：Steel）

Configure

Specification/Dimensions

Inner Dia. d(Ø)

Outer Dia. D(Ø)

Overall Length L(mm)

Metal Type

Environment

Resin Type

Multi-layer

Case Shape

Mounting Shaft Fit

Mounting Hole Fits

Lubrication

Thickness t(mm)

Max. Allowable Surface Pressure P(N/mm2)

Case Material

Max. Allowable Velocity V(m/s)

Length Type

Max. Allowable PV Value Range(N/mm2・m/s)

Max. Allowable PV Value(N/mm2•m/s)

Related Categories to Oil Free Bushings

FAQ Oil Free Bushings

Payment Method

Customer Service

My Account

About MISUMI

Related Sites

Social Media

MISUMI India Contact

Customer Service

日本語でのお問い合わせはジャパンデスクまで

Max. Allowable PV Value(N/mm²•m/s)