SD housing range
SD Series Plummer Blocks
Large bearing housings developed for heavy-duty spherical roller-bearing arrangements in demanding industrial machinery.

Construction
Split heavy-duty housing
Published shaft range
Approx. 150–300 mm for selected SD31 arrangements
Bearing families
230 / 231K / 22200 CK / 22300 CK
Duty
Heavy industrial machinery
Overview
For larger shafts and heavier machinery.
SD housings provide a robust bearing-support arrangement for equipment operating with larger shafts and spherical roller bearings.
Engineering characteristics
Built around the bearing arrangement.
SD 30
SD 500
SD 600
Bearing arrangements
Confirm the complete arrangement.
Housings can be configured around locating or non-locating bearing arrangements using appropriate locating components.
Sealing options
| Arrangement | Selection note |
|---|---|
| TS — labyrinth arrangement at both shaft exits | Confirm availability by housing size. |
| ATS — labyrinth arrangement with an end cover for shaft-end installations | Confirm availability by housing size. |
Typical applications
Industrial machinery applications.
Drawings & documentation
Technical files are issued only when genuine FRIENDS drawings or documentation are available for the selected housing.
Product enquiry
Request a SD Series quote.
The housing series will be preselected for you.
