miniature bearings | extended inner bearings

Stainless steel miniature bearings with extended inner ring for shaft sizes from 0.0469" to 0.3125"
See product table below for dimensions and technical drawings
See Products Variants below for flanged options

These stainless steel miniature bearings have an inner ring that is wider than the outer ring by 0.0312" (0.0156" on each side). These bearings are easier to mount with the wider inner ring eliminating the need for spacers or washers. Extended inner ring miniature bearings are also available with a flange on the outer ring. See Products Variants below for more details.

Stainless steel 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 so we recommend full ceramic bearings for use over 300°C. These 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.

These shielded bearings are generally pre-lubricated with grease but 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, our stainless steel miniature bearings can be relubricated according to customer requirements.

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 stainless steel 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
extended inner bearings | flanged miniature bearing

Flanged Miniature Bearings with Extended Inner Ring

Flanged

More Information

Product Details Non-Flanged

BORE

(inch)

O.D.

(inch)

OPEN BEARING

SHIELDED BEARING

OUTER WIDTH

(inch)

INNER

WIDTH

(inch)

SMB

REFERENCE

MORE INFO

OUTER

WIDTH

(inch)

INNER

WIDTH

(inch)

SMB

REFERENCE

MORE INFO

0.0469

0.1562

0.0625

0.0937

SRW0

info

0.0937

0.125

SRW0ZZ

info

0.055

0.1875

0.0781

0.1094

SRW1

info

0.1094

0.1406

SRW1ZZ

info

0.0781

0.25

0.0937

0.1094

SRW1-4

info

0.1406

0.1719

SRW1-4ZZ

info

0.0937

0.1875

0.0625

0.0937

SRW133

info

0.0937

0.125

SRW133ZZ

info

0.3125

0.1094

0.1406

SRW1-5

info

0.1406

0.1719

SRW1-5ZZ

info

0.125

0.25

0.0937

0.125

SRW144

info

0.1094

0.1406

SRW144ZZ

info

0.3125

0.1094

0.1406

SRW2-5

info

0.1406

0.1719

SRW2-5ZZ

info

0.375

0.1094

0.1406

SRW2-6

info

0.1406

0.1719

SRW2-6ZZ

info

0.375

0.1562

0.1875

SRW2

info

0.1562

0.1875

SRW2ZZ

info

0.1562

0.3125

0.1094

0.1406

SRW155

info

0.125

0.1562

SRW155ZZ

info

0.1875

0.3125

0.1094

0.125

SRW156

info

0.125

0.1562

SRW156ZZ

info

0.375

0.125

0.1562

SRW166

info

0.125

0.1562

SRW166ZZ

info

0.5

0.1562

0.1875

SRW3

info

0.196

0.2273

SRW3ZZ

info

0.25

0.375

0.125

0.1562

SRW168

info

0.125

0.1562

SRW168ZZ

info

0.5

0.125

0.1562

SRW188

info

0.1875

0.2188

SRW188ZZ

info

0.625

0.196

0.2273

SRW4

info

0.196

0.2273

SRW4ZZ

info

0.3125

0.5

0.1562

0.1875

SRW1810

info

0.1562

0.1875

SRW1810ZZ

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.