UCTB Tapped Base Pillow Block Bearing Units
UCTB is a standard duty series configured around tapped-base housing. Its catalogue definition uses setscrew locking, with individual bore and dimensional variants retained in one model table.

Series Overview
This series is organized as one catalogue-level product family rather than one product per bore size. That keeps RFQ work focused on the mounting form and locking method first, while the dimensional table remains available for the final unit selection.
This series sits within the wider bearing catalogue. Use the bearing index when comparing another housing format, then return here to verify the selected series drawing and dimensions. Browse related bearing families.
Series-Level Selection
UCTB is treated as one catalogue series, with individual unit numbers retained inside the dimensional table.
Mounting Form
The primary configuration is tapped-base housing, intended for compact shaft support where threaded mounting from the base is preferred.
Locking Logic
The catalogue identifies setscrew locking for this series; confirm the exact row before ordering.
Technical Specifications
Start with these family-level identifiers before reading across the dimensional table. They are the details most likely to distinguish a neighboring series with a similar overall appearance.
| Series | UCTB |
|---|---|
| Catalogue Reference | Part B, page B15 |
| Product Family | Tapped Base Pillow Block Bearing Units |
| Duty Classification | Standard duty |
| Locking / Mounting Method | Setscrew locking |
| Inner Ring / Bore Form | Wider inner ring / series-specific bore |
| Housing / Configuration | tapped-base housing |
| Material Note | Material varies by unit; confirm selected model |
Engineering Drawing
Read the drawing from the mounting interface inward. Check bolt or pilot geometry and shaft centerline first, then compare the remaining lettered dimensions with the same unit row in the catalogue table.
Applications
Compact machine frames
For compact machine frames, this series provides the catalogue mounting form shown above. Confirm load, speed, shaft dimensions and service environment for the chosen model.
Packaging and handling equipment
UCTB is relevant when packaging and handling equipment requires this housing format; verify shaft geometry, mounting interface, operating conditions and environment before final selection.
Equipment with limited access below the mounting surface
For equipment with limited access below the mounting surface, this series provides the catalogue mounting form shown above. Confirm load, speed, shaft dimensions and service environment for the chosen model.
Catalogue Dimensional Data
Below is the full dimensional reference for this series rather than a shortened web transcription. Keeping the table intact reduces the risk of separating a dimension from the wrong bore or unit suffix.
Selection & Integration
For new equipment, select the housing format before finalizing the shaft detail. For replacement work, reverse the process and measure the existing shaft and frame so the catalogue drawing can be matched directly. In this family, the intended role is compact shaft support where threaded mounting from the base is preferred.
| Step | Information To Confirm |
|---|---|
| 1 | shaft diameter |
| 2 | threaded base pattern |
| 3 | center height |
| 4 | locking method and service access |
A practical selection review starts with geometry and locking method, then verifies the exact model row. Special coatings, covers, grease, seals or material options should only be treated as included when they are stated for the chosen configuration.
RFQ Support
Confirm The Exact UCTB Configuration
Quotation review is more reliable when the request includes the model row, shaft size and installation drawing. Add any corrosion, cleaning or maintenance requirement that could change the configuration. Ever Power Netherlands Branch can review the quotation basis against the same reference.

