Miniature bearings

Flanged stainless steel miniature bearings for shaft sizes from 0.04" to 0.50"
See product table below for dimensions and technical drawings
See Products Variants below for chrome steel and non-flanged options

Stainless steel flanged inch sized 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 inch sized 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 imperial 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 inch sized 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 Inch | miniature ball bearings

Miniature Bearings - Inch

Chrome

More Information

flanged bearing | miniature bearings | imperial bearings

Flanged Miniature Bearings - Inch

Chrome Flanged

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miniature bearings | small bearings | fishing reel bearings

Stainless Steel Miniature Bearings - Inch

Stainless

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Product Details Stainless Flanged

BORE

(inch)

O.D.

(inch)

OPEN BEARING

SHIELDED BEARING

SEALED BEARING

WIDTH

(inch)

SMB REFERENCE

MORE INFO

WIDTH

(inch)

SMB REFERENCE

MORE INFO

WIDTH

(inch)

SMB REFERENCE

MORE INFO

0.04

0.125

0.0469

SFR09

info

 

 

 

 

 

 

0.0469

0.1562

0.625

SFR0

info

0.0937

SFR0ZZ

info

 

 

 

0.055

0.1875

0.0781

SFR1

info

0.1094

SFR1ZZ

info

 

 

 

0.0781

0.25

0.0937

SFR1-4

info

0.1406

SFR1-4ZZ

info

 

 

 

0.0937

0.1875

0.0625

SFR133

info

0.0937

SFR133ZZ

info

 

 

 

0.3125

0.1094

SFR1-5

info

0.1406

SFR1-5ZZ

info

 

 

 

0.125

0.25

0.0937

SFR144

info

0.1094

SFR144ZZ

info

0.1094

SFR144-TTS

info

0.3125

0.1094

SFR2-5

info

0.1406

SFR2-5ZZ

info

0.1406

SFR2-5-TTS

info

0.675

0.1094

SFR2-6

info

0.1406

SFR2-6ZZ

info

0.1406

SFR2-6-TTS

info

0.375

0.1562

SFR2

info

0.1562

SFR2ZZ

info

0.1562

SFR2-2RS

info

0.1562

0.3125

0.1094

SFR155

info

0.125

SFR155ZZ

info

0.125

SFR155-TTS

info

0.1875

0.3125

0.1094

SFR156

info

0.125

SFR156ZZ

info

0.125

SFR156-TTS

info

0.375

0.125

SFR166

info

0.125

SFR166ZZ

info

0.125

SFR166-TTS

info

0.5

0.1562

SFR3

info

0.196

SFR3ZZ

info

0.196

SFR3-2RS

info

0.5

0.196

SFR3W19

info

 

 

 

 

 

 

0.25

0.375

0.125

SFR168

info

0.125

SFR168ZZ

info

0.125

SFR168-TTS

info

0.5

0.125

SFR188

info

0.1875

SFR188ZZ

info

0.1875

SFR188-TTS

info

0.625

0.196

SFR4

info

0.196

SFR4ZZ

info

0.196

SFR4-2RS

info

0.3125

0.5

0.1562

SFR1810

info

0.1562

SFR1810ZZ

info

0.1562

SFR1810-TTS

info

0.375

0.875

0.2188

SFR6

info

0.2812

SFR6ZZ

info

0.2812

SFR6-2RS

info

0.5

1.125

0.25

SFR8

info

0.3125

SFR8ZZ

info

0.3125

SFR8-2RS

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.