What is verified here
Model designations and principal boundary dimensions were cross-checked against the linked official manufacturer catalogue.
Bearing family data
Insert Bearings
Wide-inner-ring ball bearing inserts with set-screw locking for compatible bearing housings.
Principal dimensions
Common model reference table
Use model search or compare the principal dimensions below. All dimensions are in millimetres.
| Model | Shaft d (mm) | Outside D (mm) | Inner-ring width B (mm) | Locking |
|---|---|---|---|---|
| UC201D1 | 12 | 47 | 31 | Set screw |
| UC202D1 | 15 | 47 | 31 | Set screw |
| UC203D1 | 17 | 47 | 31 | Set screw |
| UC204D1 | 20 | 47 | 31 | Set screw |
| UC205D1 | 25 | 52 | 34.1 | Set screw |
| UC206D1 | 30 | 62 | 38.1 | Set screw |
No matching model.
Try a model prefix or one of the dimensions shown in the table.
Why ratings are not copied
Load ratings and speed limits change with internal design, cage, seal, lubricant and manufacturer. The approved LTO data sheet governs the quotation.
Suffixes still matter
Clearance, precision, contact angle, bore, sealing and material suffixes must be matched before interchangeability is confirmed.
DATA SOURCENSK ball bearing units catalogueReference reviewed 21 August 2026. Stock and LTO performance values require sales confirmation.
Open official sourcePublished model pages
Insert Bearings model data.
Representative cards keep the category usable; the complete crawlable index below provides every published model URL.
Insert Bearings
UC205
25 mm bore · 52 mm · 34.1 mm
View dimensions and specifications
Insert Bearings
UC204
20 mm bore · 47 mm spherical outside diameter · 31 mm inner ring width
View dimensions and specifications
Insert Bearings
UC206
30 mm bore · 62 mm spherical outside diameter · 38.1 mm inner ring width
View dimensions and specifications
Found the series you need?
Send the model, suffix, quantity and operating conditions. We will confirm the exact LTO configuration before quoting.
