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UCF300 4-Bolt Flange Bearing Units
UCF300 is a heavy duty 4-bolt flange bearing units series for rigid face mounting around a shaft passing through a machine frame. The page keeps the complete catalogue drawing and model-by-model dimensional reference together for RFQ selection.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
UCF300 4-Bolt Flange Bearing Units
UCF300 is a heavy duty series configured around 4-bolt flange bearing units. Its catalogue definition uses setscrew locking, with individual bore and dimensional variants retained in one model table.

Series Overview
For purchasing and replacement work, the useful decision is the series itself, not a separate web page for every shaft size. The model table therefore stays together so adjacent metric and inch variants can be compared in one place.
Treat the housing format and locking method as the first filter. The broader bearing range is useful when the same shaft size must be checked against another flange, pillow, take-up or insert arrangement. Browse related bearing families.
Series-Level Selection
UCF300 is treated as one catalogue series, with individual unit numbers retained inside the dimensional table.
Mounting Form
The primary configuration is 4-bolt flange bearing units, intended for rigid face mounting around a shaft passing through a machine frame.
Locking Logic
The catalogue identifies setscrew locking for this series; confirm the exact row before ordering.
Technical Specifications
Use these identifiers as the first selection gate. They capture the catalogue family, duty, locking and mounting form, while the numerical model rows remain grouped in the source table below.
| Series | UCF300 |
|---|---|
| Catalogue Reference | Part B, page B22 |
| Product Family | 4-Bolt Flange Bearing Units |
| Duty Classification | Heavy duty |
| Locking / Mounting Method | Setscrew locking |
| Inner Ring / Bore Form | Wider inner ring / series-specific bore |
| Housing / Configuration | 4-Bolt Flange Bearing Units |
| Material Note | Material varies by unit; confirm selected model |
Engineering Drawing
When replacing an installed unit, use the outline drawing as a dimensional fingerprint. Match the fixed machine dimensions before relying on a partially legible model code or a visually similar housing.

Applications
Conveyor side frames
UCF300 is relevant when conveyor side frames requires this housing format; verify shaft geometry, mounting interface, operating conditions and environment before final selection.
Processing and packaging machinery
For processing and packaging machinery, this series provides the catalogue mounting form shown above. Confirm load, speed, shaft dimensions and service environment for the chosen model.
Material-handling equipment
UCF300 is relevant when material-handling equipment requires this housing format; verify shaft geometry, mounting interface, operating conditions and environment before final selection.
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
Where several series share a similar housing silhouette, the deciding details are usually locking method, duty class and one or two mounting dimensions. Verify those before comparing the remaining model rows. In this family, the intended role is rigid face mounting around a shaft passing through a machine frame.
| Step | Information To Confirm |
|---|---|
| 1 | shaft diameter |
| 2 | four-bolt mounting pattern |
| 3 | shaft-to-face geometry |
| 4 | locking method and surrounding clearance |
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 UCF300 Configuration
Share the catalogue unit you are considering plus quantity and the machine drawing. If the unit number is unknown, measured shaft and mounting dimensions can be used to narrow the series first. Ever Power Netherlands Branch can review the quotation basis against the same reference.
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