Miniature Bearings Metric | Miniature Bearings UK

Stainless steel flanged miniature bearings for shaft sizes from 1mm to 9mm
(See product table below for dimensions and technical drawings)

Stainless steel flanged miniature bearings have a solid steel flange on the outer ring. This allows the bearing to be more easily located in a housing. The flange can also help to prevent axial movement of the bearing in the event of a thrust load on the bearing. It is easier to maintain the position of a flanged bearing in the housing where a lot of vibration is present. Flanged bearings are sometimes used where the housing is made from a different material and may expand more than the bearing outer ring at higher temperatures. The resulting loose fit may allow a non-flanged bearing to move within the housing.

EZO flanged stainless steel instrument bearings are made from KS440 stainless steel, also known as ACD34 or X65Cr13. This grade of stainless steel has a greater load capacity than AISI-440C grade and better low noise qualities. It is also has better corrosion resistance. Chrome steel flanged miniature bearings can be found on the flanged miniature bearing page (see Products Variants).

These bearings, with a stainless steel retainer and a suitable high temperature lubricant, can be used at temperatures of 250°C constant or up to 300°C intermittent. Above these temperatures, the load capacity of stainless steel is reduced.

Our flanged stainless steel bearings are suitable for use in mildly corrosive environments as the steel is corrosion resistant but it is affected by seawater and stronger acids or alkalis. Marine grade stainless steel bearings, plastic bearings or full ceramic bearings should be used in very corrosive environments. Stainless steel bearings do not need preservative oil on the exterior surfaces so they can be used without lubrication (dry).

Most of these flanged stainless steel miniature bearings can be supplied open or with AISI-304 stainless steel shields. The smallest sizes are only available open. The larger sizes may be available with rubber or Teflon contact seals or low friction non-contact rubber seals. The open bearings are normally oil lubricated. Shielded or sealed bearings are generally pre-lubricated with grease but shielded bearings can also be supplied with instrument oil for low torque applications or completely dry for very low speed applications where very low rotational resistance is required. Thanks to our in-house lubrication facility, these bearings can be offered with customer specified oils, greases or dry lubricants.

The standard cage or retainer for a stainless steel flanged miniature bearing is made from either AISI-304 or AISI-420 stainless steel. A one-piece crown cage is more common for the very small and the very thin section bearings due to space constraints. Larger sizes have a two piece ribbon cage.

Click on INFO in the rows below to display technical drawings of the bearings with load and speed data. The load ratings shown are for AISI-440C flanged bearings. Load ratings are higher for EZO KS440 bearings. Please note that the maximum loads and speeds are used in theoretical life calculations. It is recommended to use bearings at significantly less than the maximum load and speed ratings to ensure reasonable bearing life.

 

Products Variants
miniature bearings | miniature bearings UK | miniature ball bearings

Miniature Bearings

Chrome

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miniature bearings | miniature bearing UK | flanged miniature bearings

Flanged Miniature Bearings

Chrome Flanged

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miniature bearings | Stainless steel bearing uk

Stainless Steel Miniature Bearings

Stainless

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Product Details Stainless Flanged

BORE

(mm)

O.D.

(Mm)

OPEN BEARING

SHIELDED BEARING

SEALED BEARING

WIDTH

(mm)

SMB

REFERENCE

MORE INFO

WIDTH

(mm)

SMB

REFERENCE

MORE INFO

WIDTH

(mm)

SMB

REFERENCE

MORE INFO

1

3

1

SF681

info

 

 

 

 

 

 

4

1.6

SF691

info

 

 

 

 

 

 

1.5

4

1.2

SF681X

info

2

SF681XZZ

info

 

 

 

5

2

SF691X

info

2.6

SF691XZZ

info

 

 

 

6

2.5

SF601X

info

3

SF601XZZ

info

 

 

 

2

5

1.5

SF682

info

2.3

SF682ZZ

info

 

 

 

5

2

SMF52

info

2.5

SMF52ZZ

info

 

 

 

6

2.3

SF692

info

3

SF692ZZ

info

 

 

 

6

 

 

 

2.3

SF692ZZW23

info

 

 

 

7

2.5

SMF72

info

3

SMF72ZZ

info

 

 

 

7

2.8

SF602

info

3.5

SF602ZZ

info

 

 

 

2.5

6

1.8

SF682X

info

2.6

SF682XZZ

info

 

 

 

7

2.5

SF692X

info

3.5

SF692XZZ

info

 

 

 

8

2.8

SF602X

info

4

SF602XZZ

info

 

 

 

3

6

2

SMF63

info

2.5

SMF63ZZ

info

 

 

 

7

2

SF683

info

3

SF683ZZ

info

 

 

 

8

2.5

SMF83

info

3

SMF83ZZ

info

 

 

 

8

3

SF693

info

4

SF693ZZ

info

 

 

 

9

2.5

SMF93

info

4

SMF93ZZ

info

 

 

 

9

3

SF603

info

5

SF603ZZ

info

 

 

 

10

4

SF623

info

4

SF623ZZ

info

4

SF623-2RS

info

4

7

2

SMF74

info

2.5

SMF74ZZ

info

 

 

 

8

2

SMF84

info

3

SMF84ZZ

info

 

 

 

9

2.5

SF684

info

4

SF684ZZ

info

4

SF684-2RS

info

9

 

 

 

3.5

SF684ZZW35

info

 

 

 

10

3

SMF104

info

4

SMF104ZZ

info

 

 

 

11

4

SF694

info

4

SF694ZZ

info

4

SF694-2RS

info

12

4

SF604

info

4

SF604ZZ

info

4

SF604-2RS

info

13

5

SF624

info

5

SF624ZZ

info

5

SF624-2RS

info

16

5

SF634

info

5

SF634ZZ

info

5

SF634-2RS

info

5

8

2

SMF85

info

2.5

SMF85ZZ

info

 

 

 

9

2.5

SMF95

info

3

SMF95ZZ

info

 

 

 

10

3

SMF105

info

4

SMF105ZZ

info

4

 

 

11

 

 

 

4

SMF115ZZ

info

4

 

 

11

3

SF685

info

5

SF685ZZ

info

5

SF685-2RS

info

13

4

SF695

info

4

SF695ZZ

info

4

SF695-2RS

info

14

5

SF605

info

5

SF605ZZ

info

5

SF605-2RS

info

16

5

SF625

info

5

SF625ZZ

info

5

SF625-2RS

info

19

6

SF635

info

6

SF635ZZ

info

6

SF635-2RS

info

6

10

2.5

SMF106

info

3

SMF106ZZ

info

3

 

 

12

3

SMF126

info

4

SMF126ZZ

info

4

 

 

13

3.5

SF686

info

5

SF686ZZ

info

5

SF686-2RS

info

13

 

 

 

4.5

SF686ZZW45

info

4.5

SF686-2RSW45

info

15

5

SF696

info

5

SF696ZZ

info

5

SF696-2RS

info

17

6

SF606

info

6

SF606ZZ

info

6

SF606-2RS

info

19

6

SF626

info

6

SF626ZZ

info

6

SF626-2RS

info

7

11

2.5

SMF117

info

3

SMF117ZZ

info

 

 

 

13

3

SMF137

info

4

SMF137ZZ

info

 

 

 

14

3.5

SF687

info

5

SF687ZZ

info

5

SF687-2RS

info

17

5

SF697

info

5

SF697ZZ

info

5

SF697-2RS

info

19

6

SF607

info

6

SF607ZZ

info

6

SF607-2RS

info

22

7

SF627

info

7

SF627ZZ

info

7

SF627-2RS

info

8

12

2.5

SMF128

info

3.5

SMF128ZZ

info

 

 

 

14

3.5

SMF148

info

4

SMF148ZZ

info

 

 

 

16

4

SF688

info

5

SF688ZZ

info

5

SF688-2RS

info

16

 

 

 

6

SF688ZZW6

info

6

SF688-2RSW6

info

19

6

SF698

info

6

SF698ZZ

info

6

SF698-2RS

info

22

7

SF608

info

7

SF608ZZ

info

7

SF608-2RS

info

9

17

4

SF689

info

5

SF689ZZ

info

5

SF689-2RS

info

17

 

 

 

6

SF689ZZW6

info

6

SF689-2RSW6

info

20

6

SF699

info

6

SF699ZZ

info

6

SF699-2RS

info

Our determination to remain specialised gives us a high level of product knowledge, providing bearing and lubrication solutions to existing or potential customers, whether individuals or large corporations. We don’t just sell bearings, we help to solve your problems. - Chris Johnson, managing director of SMB Bearings.